character*80 card
dimension sccor(3,20)
integer rescode
- call permut(symetr)
+c call permut(symetr)
ibeg=1
+ write(iout,*) 'pdbread'
do
read (ipdbin,'(a80)',end=10) card
if (card(:3).eq.'END') then
goto 10
else if (card(:3).eq.'TER') then
C End current chain
- ires_old=ires+1
- itype(ires_old)=21
+ ires_old=ires+2
+ itype(ires_old-1)=ntyp1
+ itype(ires_old)=ntyp1
ibeg=2
c write (iout,*) "Chain ended",ires,ishift,ires_old
call sccenter(ires,iii,sccor)
ishift=ires-1
if (res.ne.'GLY' .and. res.ne. 'ACE') then
ishift=ishift-1
- itype(1)=21
+ itype(1)=ntyp1
endif
c write (iout,*) "ires",ires," ibeg",ibeg," ishift",ishift
ibeg=0
nres=ires
do i=2,nres-1
c write (iout,*) i,itype(i)
- if (itype(i).eq.21) then
+ if (itype(i).eq.ntyp1) then
+ if (itype(i+1).eq.ntyp1) then
+
c write (iout,*) "dummy",i,itype(i)
- do j=1,3
- c(j,i)=((c(j,i-1)+c(j,i+1))/2+2*c(j,i-1)-c(j,i-2))/2
+C do j=1,3
+C c(j,i)=((c(j,i-1)+c(j,i+1))/2+2*c(j,i-1)-c(j,i-2))/2
c c(j,i)=(c(j,i-1)+c(j,i+1))/2
- dc(j,i)=c(j,i)
- enddo
- endif
+C dc(j,i)=c(j,i)
+C enddo
+ do j=1,3
+ dcj=(c(j,i-2)-c(j,i-3))/2.0
+ c(j,i)=c(j,i-1)+dcj
+ c(j,nres+i)=c(j,i)
+ enddo
+C endif !unres_pdb
+ else !itype(i+1).eq.ntyp1
+ do j=1,3
+ dcj=(c(j,i+3)-c(j,i+2))/2.0
+ c(j,i)=c(j,i+1)-dcj
+ c(j,nres+i)=c(j,i)
+ enddo
+C endif !unres_pdb
+ endif !itype(i+1).eq.ntyp1
+ endif !itype.eq.ntyp1
enddo
C Calculate the CM of the last side chain.
call sccenter(ires,iii,sccor)
nstart_sup=1
if (itype(nres).ne.10) then
nres=nres+1
- itype(nres)=21
+ itype(nres)=ntyp1
do j=1,3
- dcj=c(j,nres-2)-c(j,nres-3)
+ dcj=(c(j,nres-2)-c(j,nres-3))/2.0
c(j,nres)=c(j,nres-1)+dcj
c(j,2*nres)=c(j,nres)
enddo
c(j,nres+1)=c(j,1)
c(j,2*nres)=c(j,nres)
enddo
- if (itype(1).eq.21) then
+ if (itype(1).eq.ntyp1) then
nsup=nsup-1
nstart_sup=2
do j=1,3
- dcj=c(j,4)-c(j,3)
+ dcj=(c(j,4)-c(j,3))/2.0
c(j,1)=c(j,2)-dcj
c(j,nres+1)=c(j,1)
enddo
& ires,itype(ires),restyp(itype(ires)),(c(j,ires),j=1,3),
& (c(j,nres+ires),j=1,3)
enddo
+ call int_from_cart1(.false.)
call int_from_cart(.true.,.false.)
+ call sc_loc_geom(.true.)
+ write (iout,*) "After int_from_cart"
+ call flush(iout)
do i=1,nres-1
do j=1,3
dc(j,i)=c(j,i+1)-c(j,i)
c write (iout,*) i,(dc(j,i+nres),j=1,3),(dc_norm(j,i+nres),j=1,3),
c & vbld_inv(i+nres)
enddo
+ do i=1,nres
+ thetaref(i)=theta(i)
+ phiref(i)=phi(i)
+c
+ phi_ref(i)=phi(i)
+ theta_ref(i)=theta(i)
+ alph_ref(i)=alph(i)
+ omeg_ref(i)=omeg(i)
+ enddo
+
c call chainbuild
C Copy the coordinates to reference coordinates
- do i=1,2*nres
+c do i=1,2*nres
+c do j=1,3
+c cref(j,i)=c(j,i)
+c enddo
+c enddo
+
+ kkk=1
+ lll=0
+ cou=1
+ do i=1,nres
+ lll=lll+1
+cc write (iout,*) "spraw lancuchy",(c(j,i),j=1,3)
+ if (i.gt.1) then
+ if ((itype(i-1).eq.ntyp1).and.(i.gt.2)) then
+ chain_length=lll-1
+ kkk=kkk+1
+c write (iout,*) "spraw lancuchy",(c(j,i),j=1,3)
+ lll=1
+ endif
+ endif
do j=1,3
- cref(j,i)=c(j,i)
+ cref(j,i,cou)=c(j,i)
+ cref(j,i+nres,cou)=c(j,i+nres)
+ if (i.le.nres) then
+ chain_rep(j,lll,kkk)=c(j,i)
+ chain_rep(j,lll+nres,kkk)=c(j,i+nres)
+ endif
+ enddo
+ enddo
+ do j=1,3
+ chain_rep(j,chain_length,symetr)=chain_rep(j,chain_length,1)
+ chain_rep(j,chain_length+nres,symetr)
+ &=chain_rep(j,chain_length+nres,1)
+ enddo
+
+ if (symetr.gt.1) then
+ call permut(symetr)
+ nperm=1
+ do i=1,symetr
+ nperm=nperm*i
+ enddo
+c do i=1,nperm
+c write(iout,*) "tabperm", (tabperm(i,kkk),kkk=1,4)
+c enddo
+ do i=1,nperm
+ cou=0
+ do kkk=1,symetr
+ icha=tabperm(i,kkk)
+c write (iout,*) i,icha
+ do lll=1,chain_length
+ cou=cou+1
+ if (cou.le.nres) then
+ do j=1,3
+ kupa=mod(lll,chain_length)
+ iprzes=(kkk-1)*chain_length+lll
+ if (kupa.eq.0) kupa=chain_length
+c write (iout,*) "kupa", kupa
+ cref(j,iprzes,i)=chain_rep(j,kupa,icha)
+ cref(j,iprzes+nres,i)=chain_rep(j,kupa+nres,icha)
+ enddo
+ endif
+ enddo
enddo
+ enddo
+ endif
+
+C-koniec robienia kopidm
+ nperm=0
+ do kkk=1,nperm
+ write (iout,*) "nowa struktura", nperm
+ do i=1,nres
+ write (iout,110) restyp(itype(i)),i,cref(1,i,kkk),
+ &cref(2,i,kkk),
+ &cref(3,i,kkk),cref(1,nres+i,kkk),
+ &cref(2,nres+i,kkk),cref(3,nres+i,kkk)
enddo
+ 100 format (//' alpha-carbon coordinates ',
+ & ' centroid coordinates'/
+ 1 ' ', 6X,'X',11X,'Y',11X,'Z',
+ & 10X,'X',11X,'Y',11X,'Z')
+ 110 format (a,'(',i3,')',6f12.5)
+ enddo
+
ishift_pdb=ishift
return
do i=nnt+1,nct
iti=itype(i)
c write (iout,*) i,dist(i,i-1)
- if (dist(i,i-1).lt.2.0D0 .or. dist(i,i-1).gt.5.0D0) then
+ if ((dist(i,i-1).lt.2.0D0 .or. dist(i,i-1).gt.5.0D0)
+ &.and.(iti.ne.ntyp1).and.(itype(i-1).ne.ntyp1)) then
write (iout,'(a,i4)') 'Bad Cartesians for residue',i
stop
endif
endif
return
end
+
+c-------------------------------------------------------------------------------
+ subroutine sc_loc_geom(lprn)
+ implicit real*8 (a-h,o-z)
+ include 'DIMENSIONS'
+ include 'COMMON.LOCAL'
+ include 'COMMON.VAR'
+ include 'COMMON.CHAIN'
+ include 'COMMON.INTERACT'
+ include 'COMMON.IOUNITS'
+ include 'COMMON.GEO'
+ include 'COMMON.NAMES'
+ include 'COMMON.CONTROL'
+ include 'COMMON.SETUP'
+ double precision x_prime(3),y_prime(3),z_prime(3)
+ logical lprn
+ do i=1,nres-1
+ do j=1,3
+ dc_norm(j,i)=vbld_inv(i+1)*(c(j,i+1)-c(j,i))
+ enddo
+ enddo
+ do i=2,nres-1
+ if (itype(i).ne.10 .and. itype(i).ne.ntyp1) then
+ do j=1,3
+ dc_norm(j,i+nres)=vbld_inv(i+nres)*(c(j,i+nres)-c(j,i))
+ enddo
+ else
+ do j=1,3
+ dc_norm(j,i+nres)=0.0d0
+ enddo
+ endif
+ enddo
+ do i=2,nres-1
+ costtab(i+1) =dcos(theta(i+1))
+ sinttab(i+1) =dsqrt(1-costtab(i+1)*costtab(i+1))
+ cost2tab(i+1)=dsqrt(0.5d0*(1.0d0+costtab(i+1)))
+ sint2tab(i+1)=dsqrt(0.5d0*(1.0d0-costtab(i+1)))
+ cosfac2=0.5d0/(1.0d0+costtab(i+1))
+ cosfac=dsqrt(cosfac2)
+ sinfac2=0.5d0/(1.0d0-costtab(i+1))
+ sinfac=dsqrt(sinfac2)
+ it=itype(i)
+ if (it.ne.10 .and. itype(i).ne.ntyp1) then
+c
+C Compute the axes of tghe local cartesian coordinates system; store in
+c x_prime, y_prime and z_prime
+c
+ do j=1,3
+ x_prime(j) = 0.00
+ y_prime(j) = 0.00
+ z_prime(j) = 0.00
+ enddo
+ do j = 1,3
+ x_prime(j) = (dc_norm(j,i) - dc_norm(j,i-1))*cosfac
+ y_prime(j) = (dc_norm(j,i) + dc_norm(j,i-1))*sinfac
+ enddo
+ call vecpr(x_prime,y_prime,z_prime)
+c
+C Transform the unit vector of the ith side-chain centroid, dC_norm(*,i),
+C to local coordinate system. Store in xx, yy, zz.
+c
+ xx=0.0d0
+ yy=0.0d0
+ zz=0.0d0
+ do j = 1,3
+ xx = xx + x_prime(j)*dc_norm(j,i+nres)
+ yy = yy + y_prime(j)*dc_norm(j,i+nres)
+ zz = zz + z_prime(j)*dc_norm(j,i+nres)
+ enddo
+
+ xxref(i)=xx
+ yyref(i)=yy
+ zzref(i)=zz
+ else
+ xxref(i)=0.0d0
+ yyref(i)=0.0d0
+ zzref(i)=0.0d0
+ endif
+ enddo
+ if (lprn) then
+ do i=2,nres
+ iti=itype(i)
+ if(me.eq.king.or..not.out1file)
+ & write (iout,'(a3,i4,3f10.5)') restyp(iti),i,xxref(i),
+ & yyref(i),zzref(i)
+ enddo
+ endif
+ return
+ end
c---------------------------------------------------------------------------
subroutine sccenter(ires,nscat,sccor)
implicit real*8 (a-h,o-z)
enddo
return
end
+c----------------------------------------------------------------------
+ subroutine readpdb_template(k)
+C Read the PDB file for read_constr_homology with read2sigma
+C and convert the peptide geometry into virtual-chain geometry.
+ implicit real*8 (a-h,o-z)
+ include 'DIMENSIONS'
+ include 'COMMON.LOCAL'
+ include 'COMMON.VAR'
+ include 'COMMON.CHAIN'
+ include 'COMMON.INTERACT'
+ include 'COMMON.IOUNITS'
+ include 'COMMON.GEO'
+ include 'COMMON.NAMES'
+ include 'COMMON.CONTROL'
+ include 'COMMON.SETUP'
+ integer i,j,ibeg,ishift1,ires,iii,ires_old,ishift,ity
+ logical lprn /.false./,fail
+ double precision e1(3),e2(3),e3(3)
+ double precision dcj,efree_temp
+ character*3 seq,res
+ character*5 atom
+ character*80 card
+ double precision sccor(3,20)
+ integer rescode,iterter(maxres)
+ logical unres_pdb
+ unres_pdb=.false.
+ do i=1,maxres
+ iterter(i)=0
+ enddo
+ ibeg=1
+ ishift1=0
+ ishift=0
+c write (2,*) "UNRES_PDB",unres_pdb
+ ires=0
+ ires_old=0
+ iii=0
+ lsecondary=.false.
+ nhfrag=0
+ nbfrag=0
+ do
+ read (ipdbin,'(a80)',end=10) card
+ if (card(:3).eq.'END') then
+ goto 10
+ else if (card(:3).eq.'TER') then
+C End current chain
+ ires_old=ires+2
+ itype(ires_old-1)=ntyp1
+ iterter(ires_old-1)=1
+ itype(ires_old)=ntyp1
+ iterter(ires_old)=1
+ ibeg=2
+ write (iout,*) "Chain ended",ires,ishift,ires_old
+ if (unres_pdb) then
+ do j=1,3
+ dc(j,ires)=sccor(j,iii)
+ enddo
+ else
+ call sccenter(ires,iii,sccor)
+ endif
+ endif
+C Fish out the ATOM cards.
+ if (index(card(1:4),'ATOM').gt.0) then
+ read (card(12:16),*) atom
+c write (iout,*) "! ",atom," !",ires
+c if (atom.eq.'CA' .or. atom.eq.'CH3') then
+ read (card(23:26),*) ires
+ read (card(18:20),'(a3)') res
+c write (iout,*) "ires",ires,ires-ishift+ishift1,
+c & " ires_old",ires_old
+c write (iout,*) "ishift",ishift," ishift1",ishift1
+c write (iout,*) "IRES",ires-ishift+ishift1,ires_old
+ if (ires-ishift+ishift1.ne.ires_old) then
+C Calculate the CM of the preceding residue.
+ if (ibeg.eq.0) then
+ if (unres_pdb) then
+ do j=1,3
+ dc(j,ires)=sccor(j,iii)
+ enddo
+ else
+ call sccenter(ires_old,iii,sccor)
+ endif
+ iii=0
+ endif
+C Start new residue.
+ if (res.eq.'Cl-' .or. res.eq.'Na+') then
+ ires=ires_old
+ cycle
+ else if (ibeg.eq.1) then
+c write (iout,*) "BEG ires",ires
+ ishift=ires-1
+ if (res.ne.'GLY' .and. res.ne. 'ACE') then
+ ishift=ishift-1
+ itype(1)=ntyp1
+ endif
+ ires=ires-ishift+ishift1
+ ires_old=ires
+c write (iout,*) "ishift",ishift," ires",ires,
+c & " ires_old",ires_old
+c write (iout,*) "ires",ires," ibeg",ibeg," ishift",ishift
+ ibeg=0
+ else if (ibeg.eq.2) then
+c Start a new chain
+ ishift=-ires_old+ires-1
+ ires=ires_old+1
+ write (iout,*) "New chain started",ires,ishift
+ ibeg=0
+ else
+ ishift=ishift-(ires-ishift+ishift1-ires_old-1)
+ ires=ires-ishift+ishift1
+ ires_old=ires
+ endif
+ if (res.eq.'ACE' .or. res.eq.'NHE') then
+ itype(ires)=10
+ else
+ itype(ires)=rescode(ires,res,0)
+ endif
+ else
+ ires=ires-ishift+ishift1
+ endif
+c write (iout,*) "ires_old",ires_old," ires",ires
+c if (card(27:27).eq."A" .or. card(27:27).eq."B") then
+c ishift1=ishift1+1
+c endif
+c write (2,*) "ires",ires," res ",res," ity",ity
+ if (atom.eq.'CA' .or. atom.eq.'CH3' .or.
+ & res.eq.'NHE'.and.atom(:2).eq.'HN') then
+ read(card(31:54),'(3f8.3)') (c(j,ires),j=1,3)
+c write (iout,*) "backbone ",atom ,ires,res, (c(j,ires),j=1,3)
+c#ifdef DEBUG
+c write (iout,'(2i3,2x,a,3f8.3)')
+c & ires,itype(ires),res,(c(j,ires),j=1,3)
+c#endif
+ iii=iii+1
+ do j=1,3
+ sccor(j,iii)=c(j,ires)
+ enddo
+ if (ishift.ne.0) then
+ ires_ca=ires+ishift-ishift1
+ else
+ ires_ca=ires
+ endif
+c write (*,*) card(23:27),ires,itype(ires)
+ else if (atom.ne.'O'.and.atom(1:1).ne.'H' .and.
+ & atom.ne.'N' .and. atom.ne.'C' .and.
+ & atom(:2).ne.'1H' .and. atom(:2).ne.'2H' .and.
+ & atom.ne.'OXT' .and. atom(:2).ne.'3H') then
+c write (iout,*) "sidechain ",atom
+ iii=iii+1
+ read(card(31:54),'(3f8.3)') (sccor(j,iii),j=1,3)
+ endif
+ endif
+ enddo
+ 10 if(me.eq.king.or..not.out1file)
+ & write (iout,'(a,i5)') ' Nres: ',ires
+C Calculate dummy residue coordinates inside the "chain" of a multichain
+C system
+ nres=ires
+ do i=2,nres-1
+c write (iout,*) i,itype(i),itype(i+1)
+ if (itype(i).eq.ntyp1.and.iterter(i).eq.1) then
+ if (itype(i+1).eq.ntyp1.and.iterter(i+1).eq.1 ) then
+C 16/01/2014 by Adasko: Adding to dummy atoms in the chain
+C first is connected prevous chain (itype(i+1).eq.ntyp1)=true
+C second dummy atom is conected to next chain itype(i+1).eq.ntyp1=false
+ if (unres_pdb) then
+C 2/15/2013 by Adam: corrected insertion of the last dummy residue
+ call refsys(i-3,i-2,i-1,e1,e2,e3,fail)
+ if (fail) then
+ e2(1)=0.0d0
+ e2(2)=1.0d0
+ e2(3)=0.0d0
+ endif !fail
+ do j=1,3
+ c(j,i)=c(j,i-1)-1.9d0*e2(j)
+ enddo
+ else !unres_pdb
+ do j=1,3
+ dcj=(c(j,i-2)-c(j,i-3))/2.0
+ if (dcj.eq.0) dcj=1.23591524223
+ c(j,i)=c(j,i-1)+dcj
+ c(j,nres+i)=c(j,i)
+ enddo
+ endif !unres_pdb
+ else !itype(i+1).eq.ntyp1
+ if (unres_pdb) then
+C 2/15/2013 by Adam: corrected insertion of the first dummy residue
+ call refsys(i+1,i+2,i+3,e1,e2,e3,fail)
+ if (fail) then
+ e2(1)=0.0d0
+ e2(2)=1.0d0
+ e2(3)=0.0d0
+ endif
+ do j=1,3
+ c(j,i)=c(j,i+1)-1.9d0*e2(j)
+ enddo
+ else !unres_pdb
+ do j=1,3
+ dcj=(c(j,i+3)-c(j,i+2))/2.0
+ if (dcj.eq.0) dcj=1.23591524223
+ c(j,i)=c(j,i+1)-dcj
+ c(j,nres+i)=c(j,i)
+ enddo
+ endif !unres_pdb
+ endif !itype(i+1).eq.ntyp1
+ endif !itype.eq.ntyp1
+ enddo
+C Calculate the CM of the last side chain.
+ if (unres_pdb) then
+ do j=1,3
+ dc(j,ires)=sccor(j,iii)
+ enddo
+ else
+ call sccenter(ires,iii,sccor)
+ endif
+ nsup=nres
+ nstart_sup=1
+ if (itype(nres).ne.10) then
+ nres=nres+1
+ itype(nres)=ntyp1
+ if (unres_pdb) then
+C 2/15/2013 by Adam: corrected insertion of the last dummy residue
+ call refsys(nres-3,nres-2,nres-1,e1,e2,e3,fail)
+ if (fail) then
+ e2(1)=0.0d0
+ e2(2)=1.0d0
+ e2(3)=0.0d0
+ endif
+ do j=1,3
+ c(j,nres)=c(j,nres-1)-1.9d0*e2(j)
+ enddo
+ else
+ do j=1,3
+ dcj=(c(j,nres-2)-c(j,nres-3))/2.0
+ if (dcj.eq.0) dcj=1.23591524223
+ c(j,nres)=c(j,nres-1)+dcj
+ c(j,2*nres)=c(j,nres)
+ enddo
+ endif
+ endif
+ do i=2,nres-1
+ do j=1,3
+ c(j,i+nres)=dc(j,i)
+ enddo
+ enddo
+ do j=1,3
+ c(j,nres+1)=c(j,1)
+ c(j,2*nres)=c(j,nres)
+ enddo
+ if (itype(1).eq.ntyp1) then
+ nsup=nsup-1
+ nstart_sup=2
+ if (unres_pdb) then
+C 2/15/2013 by Adam: corrected insertion of the first dummy residue
+ call refsys(2,3,4,e1,e2,e3,fail)
+ if (fail) then
+ e2(1)=0.0d0
+ e2(2)=1.0d0
+ e2(3)=0.0d0
+ endif
+ do j=1,3
+ c(j,1)=c(j,2)-1.9d0*e2(j)
+ enddo
+ else
+ do j=1,3
+ dcj=(c(j,4)-c(j,3))/2.0
+ c(j,1)=c(j,2)-dcj
+ c(j,nres+1)=c(j,1)
+ enddo
+ endif
+ endif
+C Copy the coordinates to reference coordinates
+c do i=1,2*nres
+c do j=1,3
+c cref(j,i)=c(j,i)
+c enddo
+c enddo
+C Calculate internal coordinates.
+ if (lprn) then
+ write (iout,'(/a)')
+ & "Cartesian coordinates of the reference structure"
+ write (iout,'(a,3(3x,a5),5x,3(3x,a5))')
+ & "Residue","X(CA)","Y(CA)","Z(CA)","X(SC)","Y(SC)","Z(SC)"
+ do ires=1,nres
+ write (iout,'(a3,1x,i3,3f8.3,5x,3f8.3)')
+ & restyp(itype(ires)),ires,(c(j,ires),j=1,3),
+ & (c(j,ires+nres),j=1,3)
+ enddo
+ endif
+C Calculate internal coordinates.
+ if(me.eq.king.or..not.out1file)then
+ write (iout,'(a)')
+ & "Backbone and SC coordinates as read from the PDB"
+ do ires=1,nres
+ write (iout,'(2i3,2x,a,3f8.3,5x,3f8.3)')
+ & ires,itype(ires),restyp(itype(ires)),(c(j,ires),j=1,3),
+ & (c(j,nres+ires),j=1,3)
+ enddo
+ endif
+ call int_from_cart1(.false.)
+ call int_from_cart(.true.,.false.)
+ call sc_loc_geom(.false.)
+ do i=1,nres
+ thetaref(i)=theta(i)
+ phiref(i)=phi(i)
+ enddo
+ do i=1,nres-1
+ do j=1,3
+ dc(j,i)=c(j,i+1)-c(j,i)
+ dc_norm(j,i)=dc(j,i)*vbld_inv(i+1)
+ enddo
+ enddo
+ do i=2,nres-1
+ do j=1,3
+ dc(j,i+nres)=c(j,i+nres)-c(j,i)
+ dc_norm(j,i+nres)=dc(j,i+nres)*vbld_inv(i+nres)
+ enddo
+c write (iout,*) i,(dc(j,i+nres),j=1,3),(dc_norm(j,i+nres),j=1,3),
+c & vbld_inv(i+nres)
+ enddo
+c call chainbuild
+C Copy the coordinates to reference coordinates
+C Splits to single chain if occurs
+ kkk=1
+ lll=0
+ cou=1
+ do i=1,nres
+ lll=lll+1
+cc write (iout,*) "spraw lancuchy",(c(j,i),j=1,3)
+ if (i.gt.1) then
+ if ((itype(i-1).eq.ntyp1).and.(i.gt.2)) then
+ chain_length=lll-1
+ kkk=kkk+1
+c write (iout,*) "spraw lancuchy",(c(j,i),j=1,3)
+ lll=1
+ endif
+ endif
+ do j=1,3
+ cref(j,i,cou)=c(j,i)
+ cref(j,i+nres,cou)=c(j,i+nres)
+ if (i.le.nres) then
+ chain_rep(j,lll,kkk)=c(j,i)
+ chain_rep(j,lll+nres,kkk)=c(j,i+nres)
+ endif
+ enddo
+ enddo
+c do i=1,2*nres
+c do j=1,3
+c chomo(j,i,k)=c(j,i)
+c enddo
+c enddo
+
+ write (iout,*) chain_length
+ if (chain_length.eq.0) chain_length=nres
+ do j=1,3
+ chain_rep(j,chain_length,symetr)=chain_rep(j,chain_length,1)
+ chain_rep(j,chain_length+nres,symetr)
+ &=chain_rep(j,chain_length+nres,1)
+ enddo
+c diagnostic
+c write (iout,*) "spraw lancuchy",chain_length,symetr
+c do i=1,4
+c do kkk=1,chain_length
+c write (iout,*) itype(kkk),(chain_rep(j,kkk,i), j=1,3)
+c enddo
+c enddo
+c enddiagnostic
+
+ return
+ end