working cluster for nano parameters
[unres.git] / source / cluster / wham / src-M / energy_p_new.F
index 8203cc4..dfdaba6 100644 (file)
@@ -50,7 +50,7 @@ C
 C Calculate electrostatic (H-bonding) energy of the main chain.
 C
   106 continue
-      write(iout,*) "shield_mode",shield_mode,ethetacnstr 
+C      write(iout,*) "shield_mode",shield_mode,ethetacnstr 
       if (shield_mode.eq.1) then
        call set_shield_fac
       else if  (shield_mode.eq.2) then
@@ -96,6 +96,23 @@ C
 C 21/5/07 Calculate local sicdechain correlation energy
 C
       call eback_sc_corr(esccor)
+
+      if (wliptran.gt.0) then
+        call Eliptransfer(eliptran)
+      endif
+
+      if (TUBElog.eq.1) then
+      print *,"just before call"
+        call calctube(Etube)
+       print *,"just after call",etube
+       elseif (TUBElog.eq.2) then
+        call calctube2(Etube)
+       elseif (TUBElog.eq.3) then
+        call calcnano(Etube)
+       else
+       Etube=0.0d0
+       endif
+       write(iout,*), "Etube",etube
 C 
 C 12/1/95 Multi-body terms
 C
@@ -107,11 +124,16 @@ c         print *,"calling multibody_eello"
          call multibody_eello(ecorr,ecorr5,ecorr6,eturn6,n_corr,n_corr1)
 c         write (*,*) 'n_corr=',n_corr,' n_corr1=',n_corr1
 c         print *,ecorr,ecorr5,ecorr6,eturn6
+      else
+         ecorr=0.0d0
+         ecorr5=0.0d0
+         ecorr6=0.0d0
+         eturn6=0.0d0
       endif
       if (wcorr4.eq.0.0d0 .and. wcorr.gt.0.0d0) then
          call multibody_hb(ecorr,ecorr5,ecorr6,n_corr,n_corr1)
       endif
-      write (iout,*) "ft(6)",fact(6)," evdw",evdw," evdw_t",evdw_t
+      write (iout,*) "ft(6)",fact(6),wliptran,eliptran
 #ifdef SPLITELE
       if (shield_mode.gt.0) then
       etot=fact(1)*wsc*(evdw+fact(6)*evdw_t)+fact(1)*wscp*evdw2
@@ -123,7 +145,7 @@ c         print *,ecorr,ecorr5,ecorr6,eturn6
      & +wturn3*fact(2)*eello_turn3+wturn6*fact(5)*eturn6
      & +wel_loc*fact(2)*eel_loc+edihcnstr+wtor_d*fact(2)*etors_d
      & +wbond*estr+wsccor*fact(1)*esccor+ethetacnstr
-C     & +wliptran*eliptran
+     & +wliptran*eliptran+wtube*Etube
       else
       etot=wsc*(evdw+fact(6)*evdw_t)+wscp*evdw2+welec*fact(1)*ees
      & +wvdwpp*evdw1
@@ -133,7 +155,7 @@ C     & +wliptran*eliptran
      & +wturn3*fact(2)*eello_turn3+wturn6*fact(5)*eturn6
      & +wel_loc*fact(2)*eel_loc+edihcnstr+wtor_d*fact(2)*etors_d
      & +wbond*estr+wsccor*fact(1)*esccor+ethetacnstr
-C     & +wliptran*eliptran
+     & +wliptran*eliptran+wtube*Etube
       endif
 #else
       if (shield_mode.gt.0) then
@@ -145,7 +167,7 @@ C     & +wliptran*eliptran
      & +wturn3*fact(2)*eello_turn3+wturn6*fact(5)*eturn6
      & +wel_loc*fact(2)*eel_loc+edihcnstr+wtor_d*fact(2)*etors_d
      & +wbond*estr+wsccor*fact(1)*esccor+ethetacnstr
-C     & +wliptran*eliptran
+     & +wliptran*eliptran+wtube*Etube
       else
       etot=wsc*(evdw+fact(6)*evdw_t)+wscp*evdw2
      & +welec*fact(1)*(ees+evdw1)
@@ -155,7 +177,7 @@ C     & +wliptran*eliptran
      & +wturn3*fact(2)*eello_turn3+wturn6*fact(5)*eturn6
      & +wel_loc*fact(2)*eel_loc+edihcnstr+wtor_d*fact(2)*etors_d
      & +wbond*estr+wsccor*fact(1)*esccor+ethetacnstr
-C     & +wliptran*eliptran
+     & +wliptran*eliptran+wtube*Etube
       endif
 #endif
 
@@ -192,6 +214,8 @@ C     & +wliptran*eliptran
       energia(20)=edihcnstr
       energia(21)=evdw_t
       energia(24)=ethetacnstr
+      energia(22)=eliptran
+      energia(25)=Etube
 c detecting NaNQ
 #ifdef ISNAN
 #ifdef AIX
@@ -232,11 +256,15 @@ C
      &                wturn6*fact(5)*gcorr6_turn(j,i)+
      &                wsccor*fact(2)*gsccorc(j,i)
      &               +wliptran*gliptranc(j,i)
+     &                +wtube*gg_tube(j,i)
+
           gradx(j,i,icg)=wsc*gvdwx(j,i)+wscp*gradx_scp(j,i)+
      &                  wbond*gradbx(j,i)+
      &                  wstrain*ghpbx(j,i)+wcorr*gradxorr(j,i)+
      &                  wsccor*fact(2)*gsccorx(j,i)
      &                 +wliptran*gliptranx(j,i)
+     &                +wtube*gg_tube_SC(j,i)
+
         else
           gradc(j,i,icg)=fact(1)*wsc*gvdwc(j,i)
      &                +fact(1)*wscp*gvdwc_scp(j,i)+
@@ -262,6 +290,7 @@ C
      &                 +wturn4*gshieldc_loc_t4(j,i)
      &                 +wel_loc*gshieldc_ll(j,i)
      &                 +wel_loc*gshieldc_loc_ll(j,i)
+     &                +wtube*gg_tube(j,i)
 
           gradx(j,i,icg)=fact(1)*wsc*gvdwx(j,i)
      &                 +fact(1)*wscp*gradx_scp(j,i)+
@@ -274,6 +303,7 @@ C
      &                 +wturn3*gshieldx_t3(j,i)
      &                 +wturn4*gshieldx_t4(j,i)
      &                 +wel_loc*gshieldx_ll(j,i)
+     &                +wtube*gg_tube_SC(j,i)
 
 
         endif
@@ -294,11 +324,14 @@ C
      &                wturn6*fact(5)*gcorr6_turn(j,i)+
      &                wsccor*fact(2)*gsccorc(j,i)
      &               +wliptran*gliptranc(j,i)
+     &                +wtube*gg_tube(j,i)
+
           gradx(j,i,icg)=wsc*gvdwx(j,i)+wscp*gradx_scp(j,i)+
      &                  wbond*gradbx(j,i)+
      &                  wstrain*ghpbx(j,i)+wcorr*gradxorr(j,i)+
      &                  wsccor*fact(1)*gsccorx(j,i)
      &                 +wliptran*gliptranx(j,i)
+     &                +wtube*gg_tube_SC(j,i)
               else
           gradc(j,i,icg)=fact(1)*wsc*gvdwc(j,i)+
      &                   fact(1)*wscp*gvdwc_scp(j,i)+
@@ -313,12 +346,15 @@ C
      &                wturn6*fact(5)*gcorr6_turn(j,i)+
      &                wsccor*fact(2)*gsccorc(j,i)
      &               +wliptran*gliptranc(j,i)
+     &                +wtube*gg_tube(j,i)
+
           gradx(j,i,icg)=fact(1)*wsc*gvdwx(j,i)+
      &                  fact(1)*wscp*gradx_scp(j,i)+
      &                  wbond*gradbx(j,i)+
      &                  wstrain*ghpbx(j,i)+wcorr*gradxorr(j,i)+
      &                  wsccor*fact(1)*gsccorx(j,i)
      &                 +wliptran*gliptranx(j,i)
+     &                +wtube*gg_tube_SC(j,i)
          endif
         enddo     
 #endif
@@ -376,6 +412,7 @@ C------------------------------------------------------------------------
       edihcnstr=energia(20)
       estr=energia(18)
       ethetacnstr=energia(24)
+      etube=energia(25)
 #ifdef SPLITELE
       write (iout,10) evdw,wsc,evdw2,wscp,ees,welec*fact(1),evdw1,
      &  wvdwpp,
@@ -384,7 +421,8 @@ C------------------------------------------------------------------------
      &  ecorr,wcorr*fact(3),ecorr5,wcorr5*fact(4),ecorr6,wcorr6*fact(5),
      &  eel_loc,wel_loc*fact(2),eello_turn3,wturn3*fact(2),
      &  eello_turn4,wturn4*fact(3),eello_turn6,wturn6*fact(5),
-     &  esccor,wsccor*fact(1),edihcnstr,ethetacnstr,ebr*nss,etot
+     &  esccor,wsccor*fact(1),edihcnstr,ethetacnstr,ebr*nss,etube,wtube,
+     & etot
    10 format (/'Virtual-chain energies:'//
      & 'EVDW=  ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-SC)'/
      & 'EVDW2= ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-p)'/
@@ -408,6 +446,7 @@ C------------------------------------------------------------------------
      & 'EDIHC= ',1pE16.6,' (dihedral angle constraints)'/
      & 'ETHETC= ',1pE16.6,' (valence angle constraints)'/
      & 'ESS=   ',1pE16.6,' (disulfide-bridge intrinsic energy)'/ 
+     & 'ETUBE=',1pE16.6,' WEIGHT=',1pD16.6,' (energy with nano)'/
      & 'ETOT=  ',1pE16.6,' (total)')
 #else
       write (iout,10) evdw,wsc,evdw2,wscp,ees,welec*fact(1),estr,wbond,
@@ -416,7 +455,7 @@ C------------------------------------------------------------------------
      &  ecorr6,wcorr6*fact(5),eel_loc,wel_loc*fact(2),
      &  eello_turn3,wturn3*fact(2),eello_turn4,wturn4*fact(3),
      &  eello_turn6,wturn6*fact(5),esccor*fact(1),wsccor,
-     &  edihcnstr,ethetacnstr,ebr*nss,etot
+     &  edihcnstr,ethetacnstr,ebr*nss,etube,wtube,etot
    10 format (/'Virtual-chain energies:'//
      & 'EVDW=  ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-SC)'/
      & 'EVDW2= ',1pE16.6,' WEIGHT=',1pD16.6,' (SC-p)'/
@@ -439,6 +478,7 @@ C------------------------------------------------------------------------
      & 'EDIHC= ',1pE16.6,' (dihedral angle constraints)'/
      & 'ETHETC= ',1pE16.6,' (valence angle constraints)'/
      & 'ESS=   ',1pE16.6,' (disulfide-bridge intrinsic energy)'/ 
+     & 'ETUBE=',1pE16.6,' WEIGHT=',1pD16.6,' (energy with nano)'/
      & 'ETOT=  ',1pE16.6,' (total)')
 #endif
       return
@@ -506,8 +546,8 @@ C Change 12/1/95 to calculate four-body interactions
 c           write (iout,*)'i=',i,' j=',j,' itypi=',itypi,' itypj=',itypj
             eps0ij=eps(itypi,itypj)
             fac=rrij**expon2
-            e1=fac*fac*aa(itypi,itypj)
-            e2=fac*bb(itypi,itypj)
+            e1=fac*fac*aa
+            e2=fac*bb
             evdwij=e1+e2
             ij=icant(itypi,itypj)
 c ROZNICA z WHAM
@@ -521,7 +561,7 @@ cd          write (iout,'(2(a3,i3,2x),6(1pd12.4)/2(3(1pd12.4),5x)/)')
 cd   &        restyp(itypi),i,restyp(itypj),j,aa(itypi,itypj),
 cd   &        bb(itypi,itypj),1.0D0/dsqrt(rrij),evdwij,epsi,sigm,
 cd   &        (c(k,i),k=1,3),(c(k,j),k=1,3)
-            if (bb(itypi,itypj).gt.0.0d0) then
+            if (bb.gt.0.0d0) then
               evdw=evdw+evdwij
             else
               evdw_t=evdw_t+evdwij
@@ -673,8 +713,8 @@ C
             rij=1.0D0/r_inv_ij 
             r_shift_inv=1.0D0/(rij+r0(itypi,itypj)-sigma(itypi,itypj))
             fac=r_shift_inv**expon
-            e1=fac*fac*aa(itypi,itypj)
-            e2=fac*bb(itypi,itypj)
+            e1=fac*fac*aa
+            e2=fac*bb
             evdwij=e_augm+e1+e2
             ij=icant(itypi,itypj)
 cd          sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
@@ -684,7 +724,7 @@ cd   &        restyp(itypi),i,restyp(itypj),j,aa(itypi,itypj),
 cd   &        bb(itypi,itypj),augm(itypi,itypj),epsi,sigm,
 cd   &        sigma(itypi,itypj),1.0D0/dsqrt(rrij),evdwij,
 cd   &        (c(k,i),k=1,3),(c(k,j),k=1,3)
-            if (bb(itypi,itypj).gt.0.0d0) then
+            if (bb.gt.0.0d0) then
               evdw=evdw+evdwij
             else 
               evdw_t=evdw_t+evdwij
@@ -810,23 +850,23 @@ C Calculate the angle-dependent terms of energy & contributions to derivatives.
 C Calculate whole angle-dependent part of epsilon and contributions
 C to its derivatives
             fac=(rrij*sigsq)**expon2
-            e1=fac*fac*aa(itypi,itypj)
-            e2=fac*bb(itypi,itypj)
+            e1=fac*fac*aa
+            e2=fac*bb
             evdwij=eps1*eps2rt*eps3rt*(e1+e2)
             eps2der=evdwij*eps3rt
             eps3der=evdwij*eps2rt
             evdwij=evdwij*eps2rt*eps3rt
             ij=icant(itypi,itypj)
             aux=eps1*eps2rt**2*eps3rt**2
-            if (bb(itypi,itypj).gt.0.0d0) then
+            if (bb.gt.0.0d0) then
               evdw=evdw+evdwij
             else
               evdw_t=evdw_t+evdwij
             endif
             if (calc_grad) then
             if (lprn) then
-            sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-            epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
+            sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+            epsi=bb**2/aa
 cd            write (iout,'(2(a3,i3,2x),15(0pf7.3))')
 cd     &        restyp(itypi),i,restyp(itypj),j,
 cd     &        epsi,sigm,chi1,chi2,chip1,chip2,
@@ -878,7 +918,7 @@ C
       integer icant
       external icant
       integer xshift,yshift,zshift
-      logical energy_dec /.true./
+      logical energy_dec /.false./
 c     print *,'Entering EGB nnt=',nnt,' nct=',nct,' expon=',expon
       evdw=0.0D0
       evdw_t=0.0d0
@@ -898,6 +938,28 @@ c      if (icall.gt.0) lprn=.true.
           if (yi.lt.0) yi=yi+boxysize
           zi=mod(zi,boxzsize)
           if (zi.lt.0) zi=zi+boxzsize
+       if ((zi.gt.bordlipbot)
+     &.and.(zi.lt.bordliptop)) then
+C the energy transfer exist
+        if (zi.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((zi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipi=sscalelip(fracinbuf)
+         ssgradlipi=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zi.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-zi)/lipbufthick)
+         sslipi=sscalelip(fracinbuf)
+         ssgradlipi=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipi=1.0d0
+         ssgradlipi=0.0
+        endif
+       else
+         sslipi=0.0d0
+         ssgradlipi=0.0
+       endif
         dxi=dc_norm(1,nres+i)
         dyi=dc_norm(2,nres+i)
         dzi=dc_norm(3,nres+i)
@@ -972,6 +1034,34 @@ c           alf12=0.0D0
           if (yj.lt.0) yj=yj+boxysize
           zj=mod(zj,boxzsize)
           if (zj.lt.0) zj=zj+boxzsize
+       if ((zj.gt.bordlipbot)
+     &.and.(zj.lt.bordliptop)) then
+C the energy transfer exist
+        if (zj.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((zj-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zj.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-zj)/lipbufthick)
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipj=1.0d0
+         ssgradlipj=0.0
+        endif
+       else
+         sslipj=0.0d0
+         ssgradlipj=0.0
+       endif
+      aa=aa_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +aa_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+      bb=bb_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +bb_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+C      write(iout,*) "czy jest 0", bb-bb_lip(itypi,itypj),              
+C     & bb-bb_aq(itypi,itypj)
       dist_init=(xj-xi)**2+(yj-yi)**2+(zj-zi)**2
       xj_safe=xj
       yj_safe=yj
@@ -1027,13 +1117,13 @@ C I hate to put IF's in the loops, but here don't have another choice!!!!
 c---------------------------------------------------------------
             rij_shift=1.0D0/rij_shift 
             fac=rij_shift**expon
-            e1=fac*fac*aa(itypi,itypj)
-            e2=fac*bb(itypi,itypj)
+            e1=fac*fac*aa
+            e2=fac*bb
             evdwij=eps1*eps2rt*eps3rt*(e1+e2)
             eps2der=evdwij*eps3rt
             eps3der=evdwij*eps2rt
             evdwij=evdwij*eps2rt*eps3rt
-            if (bb(itypi,itypj).gt.0) then
+            if (bb.gt.0) then
               evdw=evdw+evdwij*sss
             else
               evdw_t=evdw_t+evdwij*sss
@@ -1044,15 +1134,19 @@ c            write (iout,*) "i",i," j",j," itypi",itypi," itypj",itypj,
 c     &         " ij",ij," eneps",aux*e1/dabs(eps(itypi,itypj)),
 c     &         aux*e2/eps(itypi,itypj)
 c            if (lprn) then
-            sigm=dabs(aa(itypi,itypj)/bb(itypi,itypj))**(1.0D0/6.0D0)
-            epsi=bb(itypi,itypj)**2/aa(itypi,itypj)
-            write (iout,'(2(a3,i3,2x),17(0pf7.3))')
-     &        restyp(itypi),i,restyp(itypj),j,
-     &        epsi,sigm,chi1,chi2,chip1,chip2,
-     &        eps1,eps2rt**2,eps3rt**2,sig,sig0ij,
-     &        om1,om2,om12,1.0D0/rij,1.0D0/rij_shift,
-     &        evdwij
-             write (iout,*) "pratial sum", evdw,evdw_t
+            sigm=dabs(aa/bb)**(1.0D0/6.0D0)
+            epsi=bb**2/aa
+C#define DEBUG
+#ifdef DEBUG
+C            write (iout,'(2(a3,i3,2x),17(0pf7.3))')
+C     &        restyp(itypi),i,restyp(itypj),j,
+C     &        epsi,sigm,chi1,chi2,chip1,chip2,
+C     &        eps1,eps2rt**2,eps3rt**2,sig,sig0ij,
+C     &        om1,om2,om12,1.0D0/rij,1.0D0/rij_shift,
+C     &        evdwij
+             write (iout,*) "pratial sum", evdw,evdw_t,e1,e2,fac,aa
+#endif
+C#undef DEBUG
 c            endif
             if (calc_grad) then
 C Calculate gradient components.
@@ -1061,6 +1155,12 @@ C Calculate gradient components.
             sigder=fac*sigder
             fac=rij*fac
             fac=fac+evdwij/sss*sssgrad/sigma(itypi,itypj)*rij
+            gg_lipi(3)=eps1*(eps2rt*eps2rt)
+     &*(eps3rt*eps3rt)*sss/2.0d0*(faclip*faclip*
+     & (aa_lip(itypi,itypj)-aa_aq(itypi,itypj))
+     &+faclip*(bb_lip(itypi,itypj)-bb_aq(itypi,itypj)))
+            gg_lipj(3)=ssgradlipj*gg_lipi(3)
+            gg_lipi(3)=gg_lipi(3)*ssgradlipi
 C Calculate the radial part of the gradient
             gg(1)=xj*fac
             gg(2)=yj*fac
@@ -1115,6 +1215,35 @@ c      if (icall.gt.0) lprn=.true.
         dyi=dc_norm(2,nres+i)
         dzi=dc_norm(3,nres+i)
         dsci_inv=vbld_inv(i+nres)
+C returning the ith atom to box
+          xi=mod(xi,boxxsize)
+          if (xi.lt.0) xi=xi+boxxsize
+          yi=mod(yi,boxysize)
+          if (yi.lt.0) yi=yi+boxysize
+          zi=mod(zi,boxzsize)
+          if (zi.lt.0) zi=zi+boxzsize
+       if ((zi.gt.bordlipbot)
+     &.and.(zi.lt.bordliptop)) then
+C the energy transfer exist
+        if (zi.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((zi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipi=sscalelip(fracinbuf)
+         ssgradlipi=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zi.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-zi)/lipbufthick)
+         sslipi=sscalelip(fracinbuf)
+         ssgradlipi=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipi=1.0d0
+         ssgradlipi=0.0
+        endif
+       else
+         sslipi=0.0d0
+         ssgradlipi=0.0
+       endif
 C
 C Calculate SC interaction energy.
 C
@@ -1145,9 +1274,76 @@ c           chip12=0.0D0
 c           alf1=0.0D0
 c           alf2=0.0D0
 c           alf12=0.0D0
-            xj=c(1,nres+j)-xi
-            yj=c(2,nres+j)-yi
-            zj=c(3,nres+j)-zi
+            xj=c(1,nres+j)
+            yj=c(2,nres+j)
+            zj=c(3,nres+j)
+C returning jth atom to box
+          xj=mod(xj,boxxsize)
+          if (xj.lt.0) xj=xj+boxxsize
+          yj=mod(yj,boxysize)
+          if (yj.lt.0) yj=yj+boxysize
+          zj=mod(zj,boxzsize)
+          if (zj.lt.0) zj=zj+boxzsize
+       if ((zj.gt.bordlipbot)
+     &.and.(zj.lt.bordliptop)) then
+C the energy transfer exist
+        if (zj.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((zj-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=-sscagradlip(fracinbuf)/lipbufthick
+        elseif (zj.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-zj)/lipbufthick)
+         sslipj=sscalelip(fracinbuf)
+         ssgradlipj=sscagradlip(fracinbuf)/lipbufthick
+        else
+         sslipj=1.0d0
+         ssgradlipj=0.0
+        endif
+       else
+         sslipj=0.0d0
+         ssgradlipj=0.0
+       endif
+      aa=aa_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +aa_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+      bb=bb_lip(itypi,itypj)*(sslipi+sslipj)/2.0d0
+     &  +bb_aq(itypi,itypj)*(2.0d0-sslipi-sslipj)/2.0d0
+C        write(iout,*),aa,aa_lip(itypi,itypj),aa_aq(itypi,itypj)
+C checking the distance
+      dist_init=(xj-xi)**2+(yj-yi)**2+(zj-zi)**2
+      xj_safe=xj
+      yj_safe=yj
+      zj_safe=zj
+      subchap=0
+C finding the closest
+      do xshift=-1,1
+      do yshift=-1,1
+      do zshift=-1,1
+          xj=xj_safe+xshift*boxxsize
+          yj=yj_safe+yshift*boxysize
+          zj=zj_safe+zshift*boxzsize
+          dist_temp=(xj-xi)**2+(yj-yi)**2+(zj-zi)**2
+          if(dist_temp.lt.dist_init) then
+            dist_init=dist_temp
+            xj_temp=xj
+            yj_temp=yj
+            zj_temp=zj
+            subchap=1
+          endif
+       enddo
+       enddo
+       enddo
+       if (subchap.eq.1) then
+          xj=xj_temp-xi
+          yj=yj_temp-yi
+          zj=zj_temp-zi
+       else
+          xj=xj_safe-xi
+          yj=yj_safe-yi
+          zj=zj_safe-zi
+       endif
             dxj=dc_norm(1,nres+j)
             dyj=dc_norm(2,nres+j)
             dzj=dc_norm(3,nres+j)
@@ -1168,15 +1364,15 @@ C I hate to put IF's in the loops, but here don't have another choice!!!!
 c---------------------------------------------------------------
             rij_shift=1.0D0/rij_shift 
             fac=rij_shift**expon
-            e1=fac*fac*aa(itypi,itypj)
-            e2=fac*bb(itypi,itypj)
+            e1=fac*fac*aa
+            e2=fac*bb
             evdwij=eps1*eps2rt*eps3rt*(e1+e2)
             eps2der=evdwij*eps3rt
             eps3der=evdwij*eps2rt
             fac_augm=rrij**expon
             e_augm=augm(itypi,itypj)*fac_augm
             evdwij=evdwij*eps2rt*eps3rt
-            if (bb(itypi,itypj).gt.0.0d0) then
+            if (bb.gt.0.0d0) then
               evdw=evdw+evdwij+e_augm
             else
               evdw_t=evdw_t+evdwij+e_augm
@@ -1282,10 +1478,10 @@ C----------------------------------------------------------------------------
         gg(k)=gg(k)+eom1*dcosom1(k)+eom2*dcosom2(k)
       enddo 
       do k=1,3
-        gvdwx(k,i)=gvdwx(k,i)-gg(k)
+        gvdwx(k,i)=gvdwx(k,i)-gg(k)+gg_lipi(k)
      &            +(eom12*(dc_norm(k,nres+j)-om12*dc_norm(k,nres+i))
      &            +eom1*(erij(k)-om1*dc_norm(k,nres+i)))*dsci_inv
-        gvdwx(k,j)=gvdwx(k,j)+gg(k)
+        gvdwx(k,j)=gvdwx(k,j)+gg(k)+gg_lipi(k)
      &            +(eom12*(dc_norm(k,nres+i)-om12*dc_norm(k,nres+j))
      &            +eom2*(erij(k)-om2*dc_norm(k,nres+j)))*dscj_inv
       enddo
@@ -1294,9 +1490,12 @@ C Calculate the components of the gradient in DC and X
 C
       do k=i,j-1
         do l=1,3
-          gvdwc(l,k)=gvdwc(l,k)+gg(l)
+          gvdwc(l,k)=gvdwc(l,k)+gg(l)+gg_lipi(l)
         enddo
       enddo
+      do l=1,3
+         gvdwc(l,j)=gvdwc(l,j)+gg_lipj(l)
+      enddo
       return
       end
 c------------------------------------------------------------------------------
@@ -2041,7 +2240,7 @@ C         endif
         num_conti=0
 c        write (iout,*) 'i',i,' ielstart',ielstart(i),' ielend',ielend(i)
         do j=ielstart(i),ielend(i)
-          if (j.le.1) cycle
+C          if (j.le.1) cycle
 C           if (itype(j).eq.ntyp1 .or. itype(j+1).eq.ntyp1
 C     & .or.itype(j+2).eq.ntyp1
 C     &) cycle
@@ -2141,6 +2340,12 @@ C 12/26/95 - for the evaluation of multi-body H-bonding interactions
           if (shield_mode.gt.0) then
 C          fac_shield(i)=0.4
 C          fac_shield(j)=0.6
+C#define DEBUG
+#ifdef DEBUG
+          write(iout,*) "ees_compon",i,j,el1,el2,
+     &    fac_shield(i),fac_shield(j)
+#endif
+C#undef DEBUG
           el1=el1*fac_shield(i)**2*fac_shield(j)**2
           el2=el2*fac_shield(i)**2*fac_shield(j)**2
           eesij=(el1+el2)
@@ -2928,6 +3133,7 @@ C Third- and fourth-order contributions from turns
       include 'COMMON.VECTORS'
       include 'COMMON.FFIELD'
       include 'COMMON.SHIELD'
+      include 'COMMON.CONTROL'
 
       dimension ggg(3)
       double precision auxmat(2,2),auxmat1(2,2),auxmat2(2,2),pizda(2,2),
@@ -8730,4 +8936,836 @@ C      write(2,*) "TOTAL VOLUME",i,VolumeTotal,fac_shield(i)
       return
       end
 C--------------------------------------------------------------------------
+C-----------------------------------------------------------------------
+      double precision function sscalelip(r)
+      double precision r,gamm
+      include "COMMON.SPLITELE"
+C      if(r.lt.r_cut-rlamb) then
+C        sscale=1.0d0
+C      else if(r.le.r_cut.and.r.ge.r_cut-rlamb) then
+C        gamm=(r-(r_cut-rlamb))/rlamb
+        sscalelip=1.0d0+r*r*(2*r-3.0d0)
+C      else
+C        sscale=0d0
+C      endif
+      return
+      end
+C-----------------------------------------------------------------------
+      double precision function sscagradlip(r)
+      double precision r,gamm
+      include "COMMON.SPLITELE"
+C     if(r.lt.r_cut-rlamb) then
+C        sscagrad=0.0d0
+C      else if(r.le.r_cut.and.r.ge.r_cut-rlamb) then
+C        gamm=(r-(r_cut-rlamb))/rlamb
+        sscagradlip=r*(6*r-6.0d0)
+C      else
+C        sscagrad=0.0d0
+C      endif
+      return
+      end
+
+C-----------------------------------------------------------------------
+CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
+      subroutine Eliptransfer(eliptran)
+      implicit real*8 (a-h,o-z)
+      include 'DIMENSIONS'
+      include 'COMMON.GEO'
+      include 'COMMON.VAR'
+      include 'COMMON.LOCAL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.DERIV'
+      include 'COMMON.INTERACT'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.CALC'
+      include 'COMMON.CONTROL'
+      include 'COMMON.SPLITELE'
+      include 'COMMON.SBRIDGE'
+C this is done by Adasko
+C      print *,"wchodze"
+C structure of box:
+C      water
+C--bordliptop-- buffore starts
+C--bufliptop--- here true lipid starts
+C      lipid
+C--buflipbot--- lipid ends buffore starts
+C--bordlipbot--buffore ends
+      eliptran=0.0
+      write(iout,*) "I am in?"
+      do i=1,nres
+C       do i=1,1
+        if (itype(i).eq.ntyp1) cycle
+
+        positi=(mod(((c(3,i)+c(3,i+1))/2.0d0),boxzsize))
+        if (positi.le.0) positi=positi+boxzsize
+C        print *,i
+C first for peptide groups
+c for each residue check if it is in lipid or lipid water border area
+       if ((positi.gt.bordlipbot)
+     &.and.(positi.lt.bordliptop)) then
+C the energy transfer exist
+        if (positi.lt.buflipbot) then
+C what fraction I am in
+         fracinbuf=1.0d0-
+     &        ((positi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslip=sscalelip(fracinbuf)
+         ssgradlip=-sscagradlip(fracinbuf)/lipbufthick
+         eliptran=eliptran+sslip*pepliptran
+         gliptranc(3,i)=gliptranc(3,i)+ssgradlip*pepliptran/2.0d0
+         gliptranc(3,i-1)=gliptranc(3,i-1)+ssgradlip*pepliptran/2.0d0
+C         gliptranc(3,i-2)=gliptranc(3,i)+ssgradlip*pepliptran
+        elseif (positi.gt.bufliptop) then
+         fracinbuf=1.0d0-((bordliptop-positi)/lipbufthick)
+         sslip=sscalelip(fracinbuf)
+         ssgradlip=sscagradlip(fracinbuf)/lipbufthick
+         eliptran=eliptran+sslip*pepliptran
+         gliptranc(3,i)=gliptranc(3,i)+ssgradlip*pepliptran/2.0d0
+         gliptranc(3,i-1)=gliptranc(3,i-1)+ssgradlip*pepliptran/2.0d0
+C         gliptranc(3,i-2)=gliptranc(3,i)+ssgradlip*pepliptran
+C          print *, "doing sscalefor top part"
+C         print *,i,sslip,fracinbuf,ssgradlip
+        else
+         eliptran=eliptran+pepliptran
+C         print *,"I am in true lipid"
+        endif
+C       else
+C       eliptran=elpitran+0.0 ! I am in water
+       endif
+       enddo
+C       print *, "nic nie bylo w lipidzie?"
+C now multiply all by the peptide group transfer factor
+C       eliptran=eliptran*pepliptran
+C now the same for side chains
+CV       do i=1,1
+       do i=1,nres
+        if (itype(i).eq.ntyp1) cycle
+        positi=(mod(c(3,i+nres),boxzsize))
+        if (positi.le.0) positi=positi+boxzsize
+C       print *,mod(c(3,i+nres),boxzsize),bordlipbot,bordliptop
+c for each residue check if it is in lipid or lipid water border area
+C       respos=mod(c(3,i+nres),boxzsize)
+C       print *,positi,bordlipbot,buflipbot
+       if ((positi.gt.bordlipbot)
+     & .and.(positi.lt.bordliptop)) then
+C the energy transfer exist
+        if (positi.lt.buflipbot) then
+         fracinbuf=1.0d0-
+     &     ((positi-bordlipbot)/lipbufthick)
+C lipbufthick is thickenes of lipid buffore
+         sslip=sscalelip(fracinbuf)
+         ssgradlip=-sscagradlip(fracinbuf)/lipbufthick
+         eliptran=eliptran+sslip*liptranene(itype(i))
+         gliptranx(3,i)=gliptranx(3,i)
+     &+ssgradlip*liptranene(itype(i))
+         gliptranc(3,i-1)= gliptranc(3,i-1)
+     &+ssgradlip*liptranene(itype(i))
+C         print *,"doing sccale for lower part"
+        elseif (positi.gt.bufliptop) then
+         fracinbuf=1.0d0-
+     &((bordliptop-positi)/lipbufthick)
+         sslip=sscalelip(fracinbuf)
+         ssgradlip=sscagradlip(fracinbuf)/lipbufthick
+         eliptran=eliptran+sslip*liptranene(itype(i))
+         gliptranx(3,i)=gliptranx(3,i)
+     &+ssgradlip*liptranene(itype(i))
+         gliptranc(3,i-1)= gliptranc(3,i-1)
+     &+ssgradlip*liptranene(itype(i))
+C          print *, "doing sscalefor top part",sslip,fracinbuf
+        else
+         eliptran=eliptran+liptranene(itype(i))
+C         print *,"I am in true lipid"
+        endif
+        endif ! if in lipid or buffor
+C       else
+C       eliptran=elpitran+0.0 ! I am in water
+       enddo
+       return
+       end
+C-------------------------------------------------------------------------------------
+C-----------------------------------------------------------------------
+C-----------------------------------------------------------
+C This subroutine is to mimic the histone like structure but as well can be
+C utilizet to nanostructures (infinit) small modification has to be used to 
+C make it finite (z gradient at the ends has to be changes as well as the x,y
+C gradient has to be modified at the ends 
+C The energy function is Kihara potential 
+C E=4esp*((sigma/(r-r0))^12 - (sigma/(r-r0))^6)
+C 4eps is depth of well sigma is r_minimum r is distance from center of tube 
+C and r0 is the excluded size of nanotube (can be set to 0 if we want just a 
+C simple Kihara potential
+      subroutine calctube(Etube)
+       implicit real*8 (a-h,o-z)
+      include 'DIMENSIONS'
+      include 'COMMON.GEO'
+      include 'COMMON.VAR'
+      include 'COMMON.LOCAL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.DERIV'
+      include 'COMMON.INTERACT'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.CALC'
+      include 'COMMON.CONTROL'
+      include 'COMMON.SPLITELE'
+      include 'COMMON.SBRIDGE'
+      double precision tub_r,vectube(3),enetube(maxres*2)
+      Etube=0.0d0
+      do i=itube_start,itube_end
+        enetube(i)=0.0d0
+        enetube(i+nres)=0.0d0
+      enddo
+C first we calculate the distance from tube center
+C first sugare-phosphate group for NARES this would be peptide group 
+C for UNRES
+       do i=itube_start,itube_end
+C lets ommit dummy atoms for now
+       if ((itype(i).eq.ntyp1).or.(itype(i+1).eq.ntyp1)) cycle
+C now calculate distance from center of tube and direction vectors
+      xmin=boxxsize
+      ymin=boxysize
+        do j=-1,1
+         vectube(1)=mod((c(1,i)+c(1,i+1))/2.0d0,boxxsize)
+         vectube(1)=vectube(1)+boxxsize*j
+         vectube(2)=mod((c(2,i)+c(2,i+1))/2.0d0,boxysize)
+         vectube(2)=vectube(2)+boxysize*j
+       
+         xminact=abs(vectube(1)-tubecenter(1))
+         yminact=abs(vectube(2)-tubecenter(2))
+           if (xmin.gt.xminact) then
+            xmin=xminact
+            xtemp=vectube(1)
+           endif
+           if (ymin.gt.yminact) then
+             ymin=yminact
+             ytemp=vectube(2)
+            endif
+         enddo
+      vectube(1)=xtemp
+      vectube(2)=ytemp
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+
+C      print *,"x",(c(1,i)+c(1,i+1))/2.0d0,tubecenter(1)
+C      print *,"y",(c(2,i)+c(2,i+1))/2.0d0,tubecenter(2)
+
+C as the tube is infinity we do not calculate the Z-vector use of Z
+C as chosen axis
+      vectube(3)=0.0d0
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       enetube(i)=pep_aa_tube/rdiff6**2.0d0+pep_bb_tube/rdiff6
+C       write(iout,*) "TU13",i,rdiff6,enetube(i)
+C       print *,rdiff,rdiff6,pep_aa_tube
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=(-12.0d0*pep_aa_tube/rdiff6-
+     &       6.0d0*pep_bb_tube)/rdiff6/rdiff
+C       write(iout,'(a5,i4,f12.1,3f12.5)') "TU13",i,rdiff6,enetube(i),
+C     &rdiff,fac
+
+C now direction of gg_tube vector
+        do j=1,3
+        gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac/2.0d0
+        gg_tube(j,i)=gg_tube(j,i)+vectube(j)*fac/2.0d0
+        enddo
+        enddo
+C basically thats all code now we split for side-chains (REMEMBER to sum up at the END)
+C        print *,gg_tube(1,0),"TU"
+
+
+       do i=itube_start,itube_end
+C Lets not jump over memory as we use many times iti
+         iti=itype(i)
+C lets ommit dummy atoms for now
+         if ((iti.eq.ntyp1)
+C in UNRES uncomment the line below as GLY has no side-chain...
+C      .or.(iti.eq.10)
+     &   ) cycle
+      xmin=boxxsize
+      ymin=boxysize
+        do j=-1,1
+         vectube(1)=mod((c(1,i+nres)),boxxsize)
+         vectube(1)=vectube(1)+boxxsize*j
+         vectube(2)=mod((c(2,i+nres)),boxysize)
+         vectube(2)=vectube(2)+boxysize*j
+
+         xminact=abs(vectube(1)-tubecenter(1))
+         yminact=abs(vectube(2)-tubecenter(2))
+           if (xmin.gt.xminact) then
+            xmin=xminact
+            xtemp=vectube(1)
+           endif
+           if (ymin.gt.yminact) then
+             ymin=yminact
+             ytemp=vectube(2)
+            endif
+         enddo
+      vectube(1)=xtemp
+      vectube(2)=ytemp
+C          write(iout,*), "tututu", vectube(1),tubecenter(1),vectube(2),
+C     &     tubecenter(2)
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+
+C as the tube is infinity we do not calculate the Z-vector use of Z
+C as chosen axis
+      vectube(3)=0.0d0
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       sc_aa_tube=sc_aa_tube_par(iti)
+       sc_bb_tube=sc_bb_tube_par(iti)
+       enetube(i+nres)=sc_aa_tube/rdiff6**2.0d0+sc_bb_tube/rdiff6
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=-12.0d0*sc_aa_tube/rdiff6**2.0d0/rdiff-
+     &       6.0d0*sc_bb_tube/rdiff6/rdiff
+C now direction of gg_tube vector
+         do j=1,3
+          gg_tube_SC(j,i)=gg_tube_SC(j,i)+vectube(j)*fac
+          gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac
+         enddo
+        enddo
+        do i=itube_start,itube_end
+          Etube=Etube+enetube(i)+enetube(i+nres)
+        enddo
+C        print *,"ETUBE", etube
+        return
+        end
+C TO DO 1) add to total energy
+C       2) add to gradient summation
+C       3) add reading parameters (AND of course oppening of PARAM file)
+C       4) add reading the center of tube
+C       5) add COMMONs
+C       6) add to zerograd
+
+C-----------------------------------------------------------------------
+C-----------------------------------------------------------
+C This subroutine is to mimic the histone like structure but as well can be
+C utilizet to nanostructures (infinit) small modification has to be used to 
+C make it finite (z gradient at the ends has to be changes as well as the x,y
+C gradient has to be modified at the ends 
+C The energy function is Kihara potential 
+C E=4esp*((sigma/(r-r0))^12 - (sigma/(r-r0))^6)
+C 4eps is depth of well sigma is r_minimum r is distance from center of tube 
+C and r0 is the excluded size of nanotube (can be set to 0 if we want just a 
+C simple Kihara potential
+      subroutine calctube2(Etube)
+       implicit real*8 (a-h,o-z)
+      include 'DIMENSIONS'
+      include 'COMMON.GEO'
+      include 'COMMON.VAR'
+      include 'COMMON.LOCAL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.DERIV'
+      include 'COMMON.INTERACT'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.CALC'
+      include 'COMMON.CONTROL'
+      include 'COMMON.SPLITELE'
+      include 'COMMON.SBRIDGE'
+      double precision tub_r,vectube(3),enetube(maxres*2)
+      Etube=0.0d0
+      do i=itube_start,itube_end
+        enetube(i)=0.0d0
+        enetube(i+nres)=0.0d0
+      enddo
+C first we calculate the distance from tube center
+C first sugare-phosphate group for NARES this would be peptide group 
+C for UNRES
+       do i=itube_start,itube_end
+C lets ommit dummy atoms for now
+       
+       if ((itype(i).eq.ntyp1).or.(itype(i+1).eq.ntyp1)) cycle
+C now calculate distance from center of tube and direction vectors
+C      vectube(1)=mod((c(1,i)+c(1,i+1))/2.0d0,boxxsize)
+C          if (vectube(1).lt.0) vectube(1)=vectube(1)+boxxsize
+C      vectube(2)=mod((c(2,i)+c(2,i+1))/2.0d0,boxysize)
+C          if (vectube(2).lt.0) vectube(2)=vectube(2)+boxysize
+      xmin=boxxsize
+      ymin=boxysize
+        do j=-1,1
+         vectube(1)=mod((c(1,i)+c(1,i+1))/2.0d0,boxxsize)
+         vectube(1)=vectube(1)+boxxsize*j
+         vectube(2)=mod((c(2,i)+c(2,i+1))/2.0d0,boxysize)
+         vectube(2)=vectube(2)+boxysize*j
+
+         xminact=abs(vectube(1)-tubecenter(1))
+         yminact=abs(vectube(2)-tubecenter(2))
+           if (xmin.gt.xminact) then
+            xmin=xminact
+            xtemp=vectube(1)
+           endif
+           if (ymin.gt.yminact) then
+             ymin=yminact
+             ytemp=vectube(2)
+            endif
+         enddo
+      vectube(1)=xtemp
+      vectube(2)=ytemp
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+
+C      print *,"x",(c(1,i)+c(1,i+1))/2.0d0,tubecenter(1)
+C      print *,"y",(c(2,i)+c(2,i+1))/2.0d0,tubecenter(2)
+
+C as the tube is infinity we do not calculate the Z-vector use of Z
+C as chosen axis
+      vectube(3)=0.0d0
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C THIS FRAGMENT MAKES TUBE FINITE
+        positi=mod((c(3,i)+c(3,i+1))/2.0d0,boxzsize)
+        if (positi.le.0) positi=positi+boxzsize
+C       print *,mod(c(3,i+nres),boxzsize),bordlipbot,bordliptop
+c for each residue check if it is in lipid or lipid water border area
+C       respos=mod(c(3,i+nres),boxzsize)
+       print *,positi,bordtubebot,buftubebot,bordtubetop
+       if ((positi.gt.bordtubebot)
+     & .and.(positi.lt.bordtubetop)) then
+C the energy transfer exist
+        if (positi.lt.buftubebot) then
+         fracinbuf=1.0d0-
+     &     ((positi-bordtubebot)/tubebufthick)
+C lipbufthick is thickenes of lipid buffore
+         sstube=sscalelip(fracinbuf)
+         ssgradtube=-sscagradlip(fracinbuf)/tubebufthick
+         print *,ssgradtube, sstube,tubetranene(itype(i))
+         enetube(i)=enetube(i)+sstube*tubetranenepep
+C         gg_tube_SC(3,i)=gg_tube_SC(3,i)
+C     &+ssgradtube*tubetranene(itype(i))
+C         gg_tube(3,i-1)= gg_tube(3,i-1)
+C     &+ssgradtube*tubetranene(itype(i))
+C         print *,"doing sccale for lower part"
+        elseif (positi.gt.buftubetop) then
+         fracinbuf=1.0d0-
+     &((bordtubetop-positi)/tubebufthick)
+         sstube=sscalelip(fracinbuf)
+         ssgradtube=sscagradlip(fracinbuf)/tubebufthick
+         enetube(i)=enetube(i)+sstube*tubetranenepep
+C         gg_tube_SC(3,i)=gg_tube_SC(3,i)
+C     &+ssgradtube*tubetranene(itype(i))
+C         gg_tube(3,i-1)= gg_tube(3,i-1)
+C     &+ssgradtube*tubetranene(itype(i))
+C          print *, "doing sscalefor top part",sslip,fracinbuf
+        else
+         sstube=1.0d0
+         ssgradtube=0.0d0
+         enetube(i)=enetube(i)+sstube*tubetranenepep
+C         print *,"I am in true lipid"
+        endif
+        else
+C          sstube=0.0d0
+C          ssgradtube=0.0d0
+        cycle
+        endif ! if in lipid or buffor
+
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       enetube(i)=enetube(i)+sstube*
+     &(pep_aa_tube/rdiff6**2.0d0+pep_bb_tube/rdiff6)
+C       write(iout,*) "TU13",i,rdiff6,enetube(i)
+C       print *,rdiff,rdiff6,pep_aa_tube
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=(-12.0d0*pep_aa_tube/rdiff6-
+     &       6.0d0*pep_bb_tube)/rdiff6/rdiff*sstube
+C       write(iout,'(a5,i4,f12.1,3f12.5)') "TU13",i,rdiff6,enetube(i),
+C     &rdiff,fac
+
+C now direction of gg_tube vector
+        do j=1,3
+        gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac/2.0d0
+        gg_tube(j,i)=gg_tube(j,i)+vectube(j)*fac/2.0d0
+        enddo
+         gg_tube(3,i)=gg_tube(3,i)
+     &+ssgradtube*enetube(i)/sstube/2.0d0
+         gg_tube(3,i-1)= gg_tube(3,i-1)
+     &+ssgradtube*enetube(i)/sstube/2.0d0
+
+        enddo
+C basically thats all code now we split for side-chains (REMEMBER to sum up at the END)
+C        print *,gg_tube(1,0),"TU"
+        do i=itube_start,itube_end
+C Lets not jump over memory as we use many times iti
+         iti=itype(i)
+C lets ommit dummy atoms for now
+         if ((iti.eq.ntyp1)
+C in UNRES uncomment the line below as GLY has no side-chain...
+     &      .or.(iti.eq.10)
+     &   ) cycle
+          vectube(1)=c(1,i+nres)
+          vectube(1)=mod(vectube(1),boxxsize)
+          if (vectube(1).lt.0) vectube(1)=vectube(1)+boxxsize
+          vectube(2)=c(2,i+nres)
+          vectube(2)=mod(vectube(2),boxysize)
+          if (vectube(2).lt.0) vectube(2)=vectube(2)+boxysize
+
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+C THIS FRAGMENT MAKES TUBE FINITE
+        positi=(mod(c(3,i+nres),boxzsize))
+        if (positi.le.0) positi=positi+boxzsize
+C       print *,mod(c(3,i+nres),boxzsize),bordlipbot,bordliptop
+c for each residue check if it is in lipid or lipid water border area
+C       respos=mod(c(3,i+nres),boxzsize)
+       print *,positi,bordtubebot,buftubebot,bordtubetop
+       if ((positi.gt.bordtubebot)
+     & .and.(positi.lt.bordtubetop)) then
+C the energy transfer exist
+        if (positi.lt.buftubebot) then
+         fracinbuf=1.0d0-
+     &     ((positi-bordtubebot)/tubebufthick)
+C lipbufthick is thickenes of lipid buffore
+         sstube=sscalelip(fracinbuf)
+         ssgradtube=-sscagradlip(fracinbuf)/tubebufthick
+         print *,ssgradtube, sstube,tubetranene(itype(i))
+         enetube(i+nres)=enetube(i+nres)+sstube*tubetranene(itype(i))
+C         gg_tube_SC(3,i)=gg_tube_SC(3,i)
+C     &+ssgradtube*tubetranene(itype(i))
+C         gg_tube(3,i-1)= gg_tube(3,i-1)
+C     &+ssgradtube*tubetranene(itype(i))
+C         print *,"doing sccale for lower part"
+        elseif (positi.gt.buftubetop) then
+         fracinbuf=1.0d0-
+     &((bordtubetop-positi)/tubebufthick)
+         sstube=sscalelip(fracinbuf)
+         ssgradtube=sscagradlip(fracinbuf)/tubebufthick
+         enetube(i+nres)=enetube(i+nres)+sstube*tubetranene(itype(i))
+C         gg_tube_SC(3,i)=gg_tube_SC(3,i)
+C     &+ssgradtube*tubetranene(itype(i))
+C         gg_tube(3,i-1)= gg_tube(3,i-1)
+C     &+ssgradtube*tubetranene(itype(i))
+C          print *, "doing sscalefor top part",sslip,fracinbuf
+        else
+         sstube=1.0d0
+         ssgradtube=0.0d0
+         enetube(i+nres)=enetube(i+nres)+sstube*tubetranene(itype(i))
+C         print *,"I am in true lipid"
+        endif
+        else
+C          sstube=0.0d0
+C          ssgradtube=0.0d0
+        cycle
+        endif ! if in lipid or buffor
+CEND OF FINITE FRAGMENT
+C as the tube is infinity we do not calculate the Z-vector use of Z
+C as chosen axis
+      vectube(3)=0.0d0
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       sc_aa_tube=sc_aa_tube_par(iti)
+       sc_bb_tube=sc_bb_tube_par(iti)
+       enetube(i+nres)=(sc_aa_tube/rdiff6**2.0d0+sc_bb_tube/rdiff6)
+     &                 *sstube+enetube(i+nres)
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=(-12.0d0*sc_aa_tube/rdiff6**2.0d0/rdiff-
+     &       6.0d0*sc_bb_tube/rdiff6/rdiff)*sstube
+C now direction of gg_tube vector
+         do j=1,3
+          gg_tube_SC(j,i)=gg_tube_SC(j,i)+vectube(j)*fac
+          gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac
+         enddo
+         gg_tube_SC(3,i)=gg_tube_SC(3,i)
+     &+ssgradtube*enetube(i+nres)/sstube
+         gg_tube(3,i-1)= gg_tube(3,i-1)
+     &+ssgradtube*enetube(i+nres)/sstube
+
+        enddo
+        do i=itube_start,itube_end
+          Etube=Etube+enetube(i)+enetube(i+nres)
+        enddo
+C        print *,"ETUBE", etube
+        return
+        end
+C TO DO 1) add to total energy
+C       2) add to gradient summation
+C       3) add reading parameters (AND of course oppening of PARAM file)
+C       4) add reading the center of tube
+C       5) add COMMONs
+C       6) add to zerograd
+
+
+C#-------------------------------------------------------------------------------
+C This subroutine is to mimic the histone like structure but as well can be
+C utilizet to nanostructures (infinit) small modification has to be used to 
+C make it finite (z gradient at the ends has to be changes as well as the x,y
+C gradient has to be modified at the ends 
+C The energy function is Kihara potential 
+C E=4esp*((sigma/(r-r0))^12 - (sigma/(r-r0))^6)
+C 4eps is depth of well sigma is r_minimum r is distance from center of tube 
+C and r0 is the excluded size of nanotube (can be set to 0 if we want just a 
+C simple Kihara potential
+      subroutine calcnano(Etube)
+       implicit real*8 (a-h,o-z)
+      include 'DIMENSIONS'
+      include 'COMMON.GEO'
+      include 'COMMON.VAR'
+      include 'COMMON.LOCAL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.DERIV'
+      include 'COMMON.INTERACT'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.CALC'
+      include 'COMMON.CONTROL'
+      include 'COMMON.SPLITELE'
+      include 'COMMON.SBRIDGE'
+      double precision tub_r,vectube(3),enetube(maxres*2),
+     & enecavtube(maxres*2)
+      Etube=0.0d0
+      do i=itube_start,itube_end
+        enetube(i)=0.0d0
+        enetube(i+nres)=0.0d0
+      enddo
+C first we calculate the distance from tube center
+C first sugare-phosphate group for NARES this would be peptide group 
+C for UNRES
+       do i=itube_start,itube_end
+C lets ommit dummy atoms for now
+       if ((itype(i).eq.ntyp1).or.(itype(i+1).eq.ntyp1)) cycle
+C now calculate distance from center of tube and direction vectors
+      xmin=boxxsize
+      ymin=boxysize
+      zmin=boxzsize
+
+        do j=-1,1
+         vectube(1)=mod((c(1,i)+c(1,i+1))/2.0d0,boxxsize)
+         vectube(1)=vectube(1)+boxxsize*j
+         vectube(2)=mod((c(2,i)+c(2,i+1))/2.0d0,boxysize)
+         vectube(2)=vectube(2)+boxysize*j
+         vectube(3)=mod((c(3,i)+c(3,i+1))/2.0d0,boxzsize)
+         vectube(3)=vectube(3)+boxzsize*j
+
+
+         xminact=abs(vectube(1)-tubecenter(1))
+         yminact=abs(vectube(2)-tubecenter(2))
+         zminact=abs(vectube(3)-tubecenter(3))
+
+           if (xmin.gt.xminact) then
+            xmin=xminact
+            xtemp=vectube(1)
+           endif
+           if (ymin.gt.yminact) then
+             ymin=yminact
+             ytemp=vectube(2)
+            endif
+           if (zmin.gt.zminact) then
+             zmin=zminact
+             ztemp=vectube(3)
+            endif
+         enddo
+      vectube(1)=xtemp
+      vectube(2)=ytemp
+      vectube(3)=ztemp
+
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+      vectube(3)=vectube(3)-tubecenter(3)
+
+C      print *,"x",(c(1,i)+c(1,i+1))/2.0d0,tubecenter(1)
+C      print *,"y",(c(2,i)+c(2,i+1))/2.0d0,tubecenter(2)
+C as the tube is infinity we do not calculate the Z-vector use of Z
+C as chosen axis
+C      vectube(3)=0.0d0
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+      vectube(3)=vectube(3)/tub_r
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       enetube(i)=pep_aa_tube/rdiff6**2.0d0+pep_bb_tube/rdiff6
+C       write(iout,*) "TU13",i,rdiff6,enetube(i)
+C       print *,rdiff,rdiff6,pep_aa_tube
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=(-12.0d0*pep_aa_tube/rdiff6-
+     &       6.0d0*pep_bb_tube)/rdiff6/rdiff
+C       write(iout,'(a5,i4,f12.1,3f12.5)') "TU13",i,rdiff6,enetube(i),
+C     &rdiff,fac
+         if (acavtubpep.eq.0.0d0) then
+C go to 667
+         enecavtube(i)=0.0
+         faccav=0.0
+         else
+         denominator=(1.0+dcavtubpep*rdiff6*rdiff6)
+         enecavtube(i)=
+     &   (bcavtubpep*rdiff+acavtubpep*sqrt(rdiff)+ccavtubpep)
+     &   /denominator
+         enecavtube(i)=0.0
+         faccav=((bcavtubpep*1.0d0+acavtubpep/2.0d0/sqrt(rdiff))
+     &   *denominator-(bcavtubpep*rdiff+acavtubpep*sqrt(rdiff)
+     &   +ccavtubpep)*rdiff6**2.0d0/rdiff*dcavtubpep*12.0d0)
+     &   /denominator**2.0d0
+C         faccav=0.0
+C         fac=fac+faccav
+C 667     continue
+         endif
+C         print *,"TUT",i,iti,rdiff,rdiff6,acavtubpep,denominator,
+C     &   enecavtube(i),faccav
+C         print *,"licz=",
+C     & (bcavtub(iti)*rdiff+acavtub(iti)*sqrt(rdiff)+ccavtub(iti))
+CX         print *,"finene=",enetube(i+nres)+enecavtube(i)
+         
+C now direction of gg_tube vector
+        do j=1,3
+        gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac/2.0d0
+        gg_tube(j,i)=gg_tube(j,i)+vectube(j)*fac/2.0d0
+        enddo
+        enddo
+
+       do i=itube_start,itube_end
+        enecavtube(i)=0.0 
+C Lets not jump over memory as we use many times iti
+         iti=itype(i)
+C lets ommit dummy atoms for now
+         if ((iti.eq.ntyp1)
+C in UNRES uncomment the line below as GLY has no side-chain...
+C      .or.(iti.eq.10)
+     &   ) cycle
+      xmin=boxxsize
+      ymin=boxysize
+      zmin=boxzsize
+        do j=-1,1
+         vectube(1)=mod((c(1,i+nres)),boxxsize)
+         vectube(1)=vectube(1)+boxxsize*j
+         vectube(2)=mod((c(2,i+nres)),boxysize)
+         vectube(2)=vectube(2)+boxysize*j
+         vectube(3)=mod((c(3,i+nres)),boxzsize)
+         vectube(3)=vectube(3)+boxzsize*j
+
+
+         xminact=abs(vectube(1)-tubecenter(1))
+         yminact=abs(vectube(2)-tubecenter(2))
+         zminact=abs(vectube(3)-tubecenter(3))
+
+           if (xmin.gt.xminact) then
+            xmin=xminact
+            xtemp=vectube(1)
+           endif
+           if (ymin.gt.yminact) then
+             ymin=yminact
+             ytemp=vectube(2)
+            endif
+           if (zmin.gt.zminact) then
+             zmin=zminact
+             ztemp=vectube(3)
+            endif
+         enddo
+      vectube(1)=xtemp
+      vectube(2)=ytemp
+      vectube(3)=ztemp
+
+C          write(iout,*), "tututu", vectube(1),tubecenter(1),vectube(2),
+C     &     tubecenter(2)
+      vectube(1)=vectube(1)-tubecenter(1)
+      vectube(2)=vectube(2)-tubecenter(2)
+      vectube(3)=vectube(3)-tubecenter(3)
+C now calculte the distance
+       tub_r=dsqrt(vectube(1)**2+vectube(2)**2+vectube(3)**2)
+C now normalize vector
+      vectube(1)=vectube(1)/tub_r
+      vectube(2)=vectube(2)/tub_r
+      vectube(3)=vectube(3)/tub_r
+
+C calculte rdiffrence between r and r0
+      rdiff=tub_r-tubeR0
+C and its 6 power
+      rdiff6=rdiff**6.0d0
+C for vectorization reasons we will sumup at the end to avoid depenence of previous
+       sc_aa_tube=sc_aa_tube_par(iti)
+       sc_bb_tube=sc_bb_tube_par(iti)
+       enetube(i+nres)=sc_aa_tube/rdiff6**2.0d0+sc_bb_tube/rdiff6
+C       enetube(i+nres)=0.0d0
+C pep_aa_tube and pep_bb_tube are precomputed values A=4eps*sigma^12 B=4eps*sigma^6
+C now we calculate gradient
+       fac=-12.0d0*sc_aa_tube/rdiff6**2.0d0/rdiff-
+     &       6.0d0*sc_bb_tube/rdiff6/rdiff
+C       fac=0.0
+C now direction of gg_tube vector
+C Now cavity term E=a(x+bsqrt(x)+c)/(1+dx^12)
+         if (acavtub(iti).eq.0.0d0) then
+C go to 667
+         enecavtube(i+nres)=0.0
+         faccav=0.0
+         else
+         denominator=(1.0+dcavtub(iti)*rdiff6*rdiff6)
+         enecavtube(i+nres)=
+     &   (bcavtub(iti)*rdiff+acavtub(iti)*sqrt(rdiff)+ccavtub(iti))
+     &   /denominator
+C         enecavtube(i)=0.0
+         faccav=((bcavtub(iti)*1.0d0+acavtub(iti)/2.0d0/sqrt(rdiff))
+     &   *denominator-(bcavtub(iti)*rdiff+acavtub(iti)*sqrt(rdiff)
+     &   +ccavtub(iti))*rdiff6**2.0d0/rdiff*dcavtub(iti)*12.0d0)
+     &   /denominator**2.0d0
+C         faccav=0.0
+         fac=fac+faccav
+C 667     continue
+         endif
+C         print *,"TUT",i,iti,rdiff,rdiff6,acavtub(iti),denominator,
+C     &   enecavtube(i),faccav
+C         print *,"licz=",
+C     & (bcavtub(iti)*rdiff+acavtub(iti)*sqrt(rdiff)+ccavtub(iti))
+C         print *,"finene=",enetube(i+nres)+enecavtube(i)
+         do j=1,3
+          gg_tube_SC(j,i)=gg_tube_SC(j,i)+vectube(j)*fac
+          gg_tube(j,i-1)=gg_tube(j,i-1)+vectube(j)*fac
+         enddo
+        enddo
+C Now cavity term E=a(x+bsqrt(x)+c)/(1+dx^12)
+C        do i=itube_start,itube_end
+C        enecav(i)=0.0        
+C        iti=itype(i)
+C        if (acavtub(iti).eq.0.0) cycle
+        
+
+
+        do i=itube_start,itube_end
+          Etube=Etube+enetube(i)+enetube(i+nres)+enecavtube(i)
+     & +enecavtube(i+nres)
+        enddo
+C        print *,"ETUBE", etube
+        return
+        end
+C TO DO 1) add to total energy
+C       2) add to gradient summation
+C       3) add reading parameters (AND of course oppening of PARAM file)
+C       4) add reading the center of tube
+C       5) add COMMONs
+C       6) add to zerograd