X-Git-Url: http://mmka.chem.univ.gda.pl/gitweb/?a=blobdiff_plain;f=source%2Funres%2Fsrc_MD-M%2Fenergy_p_new_barrier.F;h=e9d67bc2c482af499ec9b25402d508c3fe0d4e55;hb=05c18ccfcefc037cb8394bd779a4e51b7cbea6ec;hp=215fb6c26333937c74dea2e60ffc6e177ab2dd10;hpb=dc7deba07f8e1f5bc5eb8e6e2fb433c3636c7782;p=unres.git diff --git a/source/unres/src_MD-M/energy_p_new_barrier.F b/source/unres/src_MD-M/energy_p_new_barrier.F index 215fb6c..e9d67bc 100644 --- a/source/unres/src_MD-M/energy_p_new_barrier.F +++ b/source/unres/src_MD-M/energy_p_new_barrier.F @@ -142,8 +142,10 @@ C the shielding factor is set this factor is describing how each C peptide group is shielded by side-chains C the matrix - shield_fac(i) the i index describe the ith between i and i+1 C write (iout,*) "shield_mode",shield_mode - if (shield_mode.gt.0) then + if (shield_mode.eq.1) then call set_shield_fac + else if (shield_mode.eq.2) then + call set_shield_fac2 endif c print *,"Processor",myrank," left VEC_AND_DERIV" if (ipot.lt.6) then @@ -1004,6 +1006,7 @@ c------------------------------------------------------------------------------- include 'COMMON.IOUNITS' include 'COMMON.FFIELD' include 'COMMON.SBRIDGE' + include 'COMMON.CONTROL' double precision kfac /2.4d0/ double precision x,x2,x3,x4,x5,licznik /1.12692801104297249644/ c facT=temp0/t_bath @@ -1039,6 +1042,11 @@ c facT=2*temp0/(t_bath+temp0) #endif stop 555 endif + if (shield_mode.gt.0) then + wscp=weights(2)*fact + wsc=weights(1)*fact + wvdwpp=weights(16)*fact + endif welec=weights(3)*fact wcorr=weights(4)*fact3 wcorr5=weights(5)*fact4 @@ -1099,7 +1107,7 @@ C------------------------------------------------------------------------ & escloc,wscloc,etors,wtor,etors_d,wtor_d,ehpb,wstrain, & ecorr,wcorr, & ecorr5,wcorr5,ecorr6,wcorr6,eel_loc,wel_loc,eello_turn3,wturn3, - & eello_turn4,wturn4,eello_turn6,wturn6,esccor,wsccro,edihcnstr, + & eello_turn4,wturn4,eello_turn6,wturn6,esccor,wsccor,edihcnstr, & ethetacnstr,ebr*nss,Uconst,eliptran,wliptran,Eafmforc, & etot 10 format (/'Virtual-chain energies:'// @@ -8677,7 +8685,7 @@ c & ' eij',eij,' eesij',ees0pij,ees0mij,' and ',k,l c & ,' fcont ',ekl,' eeskl',ees0pkl,ees0mkl,' energy=',ekont*ees, c & 'gradcorr_long' C Calculate the multi-body contribution to energy. -c ecorr=ecorr+ekont*ees +C ecorr=ecorr+ekont*ees C Calculate multi-body contributions to the gradient. coeffpees0pij=coeffp*ees0pij coeffmees0mij=coeffm*ees0mij @@ -11369,7 +11377,8 @@ C now costhet_grad enddo VofOverlap=VSolvSphere/2.0d0*(1.0-costhet)*(1.0-cosphi) - & /VSolvSphere_div*4.0d0 + & /VSolvSphere_div + & *wshield C now the gradient... C grad_shield is gradient of Calfa for peptide groups C write(iout,*) "shield_compon",i,k,VSolvSphere,scale_fac_dist, @@ -11448,4 +11457,176 @@ C print *, x(i+1),yy(i),i gradtschebyshev=aux return end +C------------------------------------------------------------------------ +C first for shielding is setting of function of side-chains + subroutine set_shield_fac2 + implicit real*8 (a-h,o-z) + include 'DIMENSIONS' + include 'COMMON.CHAIN' + include 'COMMON.DERIV' + include 'COMMON.IOUNITS' + include 'COMMON.SHIELD' + include 'COMMON.INTERACT' +C this is the squar root 77 devided by 81 the epislion in lipid (in protein) + double precision div77_81/0.974996043d0/, + &div4_81/0.2222222222d0/,sh_frac_dist_grad(3) + +C the vector between center of side_chain and peptide group + double precision pep_side(3),long,side_calf(3), + &pept_group(3),costhet_grad(3),cosphi_grad_long(3), + &cosphi_grad_loc(3),pep_side_norm(3),side_calf_norm(3) +C the line belowe needs to be changed for FGPROC>1 + do i=1,nres-1 + if ((itype(i).eq.ntyp1).and.itype(i+1).eq.ntyp1) cycle + ishield_list(i)=0 +Cif there two consequtive dummy atoms there is no peptide group between them +C the line below has to be changed for FGPROC>1 + VolumeTotal=0.0 + do k=1,nres + if ((itype(k).eq.ntyp1).or.(itype(k).eq.10)) cycle + dist_pep_side=0.0 + dist_side_calf=0.0 + do j=1,3 +C first lets set vector conecting the ithe side-chain with kth side-chain + pep_side(j)=c(j,k+nres)-(c(j,i)+c(j,i+1))/2.0d0 +C pep_side(j)=2.0d0 +C and vector conecting the side-chain with its proper calfa + side_calf(j)=c(j,k+nres)-c(j,k) +C side_calf(j)=2.0d0 + pept_group(j)=c(j,i)-c(j,i+1) +C lets have their lenght + dist_pep_side=pep_side(j)**2+dist_pep_side + dist_side_calf=dist_side_calf+side_calf(j)**2 + dist_pept_group=dist_pept_group+pept_group(j)**2 + enddo + dist_pep_side=dsqrt(dist_pep_side) + dist_pept_group=dsqrt(dist_pept_group) + dist_side_calf=dsqrt(dist_side_calf) + do j=1,3 + pep_side_norm(j)=pep_side(j)/dist_pep_side + side_calf_norm(j)=dist_side_calf + enddo +C now sscale fraction + sh_frac_dist=-(dist_pep_side-rpp(1,1)-buff_shield)/buff_shield +C print *,buff_shield,"buff" +C now sscale + if (sh_frac_dist.le.0.0) cycle +C If we reach here it means that this side chain reaches the shielding sphere +C Lets add him to the list for gradient + ishield_list(i)=ishield_list(i)+1 +C ishield_list is a list of non 0 side-chain that contribute to factor gradient +C this list is essential otherwise problem would be O3 + shield_list(ishield_list(i),i)=k +C Lets have the sscale value + if (sh_frac_dist.gt.1.0) then + scale_fac_dist=1.0d0 + do j=1,3 + sh_frac_dist_grad(j)=0.0d0 + enddo + else + scale_fac_dist=-sh_frac_dist*sh_frac_dist + & *(2.0d0*sh_frac_dist-3.0d0) + fac_help_scale=6.0d0*(sh_frac_dist-sh_frac_dist**2) + & /dist_pep_side/buff_shield*0.5d0 +C remember for the final gradient multiply sh_frac_dist_grad(j) +C for side_chain by factor -2 ! + do j=1,3 + sh_frac_dist_grad(j)=fac_help_scale*pep_side(j) +C sh_frac_dist_grad(j)=0.0d0 +C scale_fac_dist=1.0d0 +C print *,"jestem",scale_fac_dist,fac_help_scale, +C & sh_frac_dist_grad(j) + enddo + endif +C this is what is now we have the distance scaling now volume... + short=short_r_sidechain(itype(k)) + long=long_r_sidechain(itype(k)) + costhet=1.0d0/dsqrt(1.0d0+short**2/dist_pep_side**2) + sinthet=short/dist_pep_side*costhet +C now costhet_grad +C costhet=0.6d0 +C sinthet=0.8 + costhet_fac=costhet**3*short**2*(-0.5d0)/dist_pep_side**4 +C sinthet_fac=costhet**2*0.5d0*(short**3/dist_pep_side**4*costhet +C & -short/dist_pep_side**2/costhet) +C costhet_fac=0.0d0 + do j=1,3 + costhet_grad(j)=costhet_fac*pep_side(j) + enddo +C remember for the final gradient multiply costhet_grad(j) +C for side_chain by factor -2 ! +C fac alfa is angle between CB_k,CA_k, CA_i,CA_i+1 +C pep_side0pept_group is vector multiplication + pep_side0pept_group=0.0d0 + do j=1,3 + pep_side0pept_group=pep_side0pept_group+pep_side(j)*side_calf(j) + enddo + cosalfa=(pep_side0pept_group/ + & (dist_pep_side*dist_side_calf)) + fac_alfa_sin=1.0d0-cosalfa**2 + fac_alfa_sin=dsqrt(fac_alfa_sin) + rkprim=fac_alfa_sin*(long-short)+short +C rkprim=short + +C now costhet_grad + cosphi=1.0d0/dsqrt(1.0d0+rkprim**2/dist_pep_side**2) +C cosphi=0.6 + cosphi_fac=cosphi**3*rkprim**2*(-0.5d0)/dist_pep_side**4 + sinphi=rkprim/dist_pep_side/dsqrt(1.0d0+rkprim**2/ + & dist_pep_side**2) +C sinphi=0.8 + do j=1,3 + cosphi_grad_long(j)=cosphi_fac*pep_side(j) + &+cosphi**3*0.5d0/dist_pep_side**2*(-rkprim) + &*(long-short)/fac_alfa_sin*cosalfa/ + &((dist_pep_side*dist_side_calf))* + &((side_calf(j))-cosalfa* + &((pep_side(j)/dist_pep_side)*dist_side_calf)) +C cosphi_grad_long(j)=0.0d0 + cosphi_grad_loc(j)=cosphi**3*0.5d0/dist_pep_side**2*(-rkprim) + &*(long-short)/fac_alfa_sin*cosalfa + &/((dist_pep_side*dist_side_calf))* + &(pep_side(j)- + &cosalfa*side_calf(j)/dist_side_calf*dist_pep_side) +C cosphi_grad_loc(j)=0.0d0 + enddo +C print *,sinphi,sinthet + VofOverlap=VSolvSphere/2.0d0*(1.0d0-dsqrt(1.0d0-sinphi*sinthet)) + & /VSolvSphere_div +C & *wshield +C now the gradient... + do j=1,3 + grad_shield(j,i)=grad_shield(j,i) +C gradient po skalowaniu + & +(sh_frac_dist_grad(j)*VofOverlap +C gradient po costhet + & +scale_fac_dist*VSolvSphere/VSolvSphere_div/4.0d0* + &(1.0d0/(-dsqrt(1.0d0-sinphi*sinthet))*( + & sinphi/sinthet*costhet*costhet_grad(j) + & +sinthet/sinphi*cosphi*cosphi_grad_long(j))) + & )*wshield +C grad_shield_side is Cbeta sidechain gradient + grad_shield_side(j,ishield_list(i),i)= + & (sh_frac_dist_grad(j)*-2.0d0 + & *VofOverlap + & -scale_fac_dist*VSolvSphere/VSolvSphere_div/2.0d0* + &(1.0d0/(-dsqrt(1.0d0-sinphi*sinthet))*( + & sinphi/sinthet*costhet*costhet_grad(j) + & +sinthet/sinphi*cosphi*cosphi_grad_long(j))) + & )*wshield + + grad_shield_loc(j,ishield_list(i),i)= + & scale_fac_dist*VSolvSphere/VSolvSphere_div/2.0d0* + &(1.0d0/(dsqrt(1.0d0-sinphi*sinthet))*( + & sinthet/sinphi*cosphi*cosphi_grad_loc(j) + & )) + & *wshield + enddo + VolumeTotal=VolumeTotal+VofOverlap*scale_fac_dist + enddo + fac_shield(i)=VolumeTotal*wshield+(1.0d0-wshield) +C write(2,*) "TOTAL VOLUME",i,VolumeTotal,fac_shield(i) + enddo + return + end