subroutine molread(*) C C Read molecular data. C implicit real*8 (a-h,o-z) include 'DIMENSIONS' include 'DIMENSIONS.ZSCOPT' include 'COMMON.IOUNITS' include 'COMMON.GEO' include 'COMMON.VAR' include 'COMMON.INTERACT' include 'COMMON.LOCAL' include 'COMMON.NAMES' include 'COMMON.CHAIN' include 'COMMON.FFIELD' include 'COMMON.SBRIDGE' include 'COMMON.TORCNSTR' include 'COMMON.CONTROL' character*4 sequence(maxres) integer rescode double precision x(maxvar) character*320 controlcard,ucase dimension itype_pdb(maxres) logical seq_comp call card_concat(controlcard,.true.) call reada(controlcard,'SCAL14',scal14,0.4d0) call reada(controlcard,'SCALSCP',scalscp,1.0d0) call reada(controlcard,'CUTOFF',cutoff_corr,7.0d0) call reada(controlcard,'DELT_CORR',delt_corr,0.5d0) r0_corr=cutoff_corr-delt_corr call readi(controlcard,"NRES",nres,0) iscode=index(controlcard,"ONE_LETTER") if (nres.le.0) then write (iout,*) "Error: no residues in molecule" return1 endif if (nres.gt.maxres) then write (iout,*) "Error: too many residues",nres,maxres endif write(iout,*) 'nres=',nres C Read sequence of the protein if (iscode.gt.0) then read (inp,'(80a1)') (sequence(i)(1:1),i=1,nres) else read (inp,'(20(1x,a3))') (sequence(i),i=1,nres) endif C Convert sequence to numeric code do i=1,nres itype(i)=rescode(i,sequence(i),iscode) enddo write (iout,*) "Numeric code:" write (iout,'(20i4)') (itype(i),i=1,nres) do i=1,nres-1 #ifdef PROCOR if (itype(i).eq.21 .or. itype(i+1).eq.21) then #else if (itype(i).eq.21) then #endif itel(i)=0 #ifdef PROCOR else if (itype(i+1).ne.20) then #else else if (itype(i).ne.20) then #endif itel(i)=1 else itel(i)=2 endif enddo call read_bridge if (with_dihed_constr) then read (inp,*) ndih_constr if (ndih_constr.gt.0) then read (inp,*) ftors write (iout,*) 'FTORS',ftors read (inp,*) (idih_constr(i),phi0(i),drange(i),i=1,ndih_constr) write (iout,*) & 'There are',ndih_constr,' constraints on phi angles.' do i=1,ndih_constr write (iout,'(i5,2f8.3)') idih_constr(i),phi0(i),drange(i) enddo do i=1,ndih_constr phi0(i)=deg2rad*phi0(i) drange(i)=deg2rad*drange(i) enddo endif endif nnt=1 nct=nres if (itype(1).eq.21) nnt=2 if (itype(nres).eq.21) nct=nct-1 write(iout,*) 'NNT=',NNT,' NCT=',NCT c Read distance restraints if (constr_dist.gt.0) then if (refstr) call read_ref_structure(*11) call read_dist_constr call hpb_partition endif call setup_var call init_int_table if (ns.gt.0) then write (iout,'(/a,i3,a)') 'The chain contains',ns, & ' disulfide-bridging cysteines.' write (iout,'(20i4)') (iss(i),i=1,ns) write (iout,'(/a/)') 'Pre-formed links are:' do i=1,nss i1=ihpb(i)-nres i2=jhpb(i)-nres it1=itype(i1) it2=itype(i2) write (iout,'(2a,i3,3a,i3,a,3f10.3)') & restyp(it1),'(',i1,') -- ',restyp(it2),'(',i2,')', & dhpb(i),ebr,forcon(i) enddo endif write (iout,'(a)') return 11 stop "Error reading reference structure" end c----------------------------------------------------------------------------- logical function seq_comp(itypea,itypeb,length) implicit none integer length,itypea(length),itypeb(length) integer i do i=1,length if (itypea(i).ne.itypeb(i)) then seq_comp=.false. return endif enddo seq_comp=.true. return end c----------------------------------------------------------------------------- subroutine read_bridge C Read information about disulfide bridges. implicit real*8 (a-h,o-z) include 'DIMENSIONS' include 'DIMENSIONS.ZSCOPT' include 'COMMON.IOUNITS' include 'COMMON.GEO' include 'COMMON.VAR' include 'COMMON.INTERACT' include 'COMMON.NAMES' include 'COMMON.CHAIN' include 'COMMON.FFIELD' include 'COMMON.SBRIDGE' C Read bridging residues. read (inp,*) ns,(iss(i),i=1,ns) print *,'ns=',ns write (iout,*) 'ns=',ns,' iss:',(iss(i),i=1,ns) C Check whether the specified bridging residues are cystines. do i=1,ns if (itype(iss(i)).ne.1) then write (iout,'(2a,i3,a)') & 'Do you REALLY think that the residue ',restyp(iss(i)),i, & ' can form a disulfide bridge?!!!' write (*,'(2a,i3,a)') & 'Do you REALLY think that the residue ',restyp(iss(i)),i, & ' can form a disulfide bridge?!!!' stop endif enddo C Read preformed bridges. if (ns.gt.0) then read (inp,*) nss,(ihpb(i),jhpb(i),i=1,nss) write (iout,*) 'nss=',nss,' ihpb,jhpb: ',(ihpb(i),jhpb(i),i=1,nss) if (nss.gt.0) then nhpb=nss C Check if the residues involved in bridges are in the specified list of C bridging residues. do i=1,nss do j=1,i-1 if (ihpb(i).eq.ihpb(j).or.ihpb(i).eq.jhpb(j) & .or.jhpb(i).eq.ihpb(j).or.jhpb(i).eq.jhpb(j)) then write (iout,'(a,i3,a)') 'Disulfide pair',i, & ' contains residues present in other pairs.' write (*,'(a,i3,a)') 'Disulfide pair',i, & ' contains residues present in other pairs.' stop endif enddo do j=1,ns if (ihpb(i).eq.iss(j)) goto 10 enddo write (iout,'(a,i3,a)') 'Pair',i,' contains unknown cystine.' 10 continue do j=1,ns if (jhpb(i).eq.iss(j)) goto 20 enddo write (iout,'(a,i3,a)') 'Pair',i,' contains unknown cystine.' 20 continue dhpb(i)=dbr forcon(i)=fbr enddo do i=1,nss ihpb(i)=ihpb(i)+nres jhpb(i)=jhpb(i)+nres enddo endif endif return end c------------------------------------------------------------------------------ subroutine read_angles(kanal,iscor,energ,iprot,*) implicit real*8 (a-h,o-z) include 'DIMENSIONS' include 'DIMENSIONS.ZSCOPT' include 'COMMON.INTERACT' include 'COMMON.SBRIDGE' include 'COMMON.GEO' include 'COMMON.VAR' include 'COMMON.CHAIN' include 'COMMON.IOUNITS' character*80 lineh read(kanal,'(a80)',end=10,err=10) lineh read(lineh(:5),*,err=8) ic read(lineh(6:),*,err=8) energ goto 9 8 ic=1 print *,'error, assuming e=1d10',lineh energ=1d10 nss=0 9 continue read(lineh(18:),*,end=10,err=10) nss IF (NSS.LT.9) THEN read (lineh(20:),*,end=10,err=10) & (IHPB(I),JHPB(I),I=1,NSS),iscor ELSE read (lineh(20:),*,end=10,err=10) (IHPB(I),JHPB(I),I=1,8) read (kanal,*,end=10,err=10) (IHPB(I),JHPB(I), & I=9,NSS),iscor ENDIF c print *,"energy",energ," iscor",iscor read (kanal,*,err=10,end=10) (theta(i),i=3,nres) read (kanal,*,err=10,end=10) (phi(i),i=4,nres) read (kanal,*,err=10,end=10) (alph(i),i=2,nres-1) read (kanal,*,err=10,end=10) (omeg(i),i=2,nres-1) do i=1,nres theta(i)=deg2rad*theta(i) phi(i)=deg2rad*phi(i) alph(i)=deg2rad*alph(i) omeg(i)=deg2rad*omeg(i) enddo return 10 return1 end c------------------------------------------------------------------------------- subroutine read_dist_constr implicit real*8 (a-h,o-z) include 'DIMENSIONS' include 'COMMON.CONTROL' include 'COMMON.CHAIN' include 'COMMON.IOUNITS' include 'COMMON.SBRIDGE' integer ifrag_(2,100),ipair_(2,100) double precision wfrag_(100),wpair_(100) character*500 controlcard c write (iout,*) "Calling read_dist_constr" c write (iout,*) "nres",nres," nstart_sup",nstart_sup," nsup",nsup c call flush(iout) call card_concat(controlcard,.true.) call readi(controlcard,"NFRAG",nfrag_,0) call readi(controlcard,"NPAIR",npair_,0) call readi(controlcard,"NDIST",ndist_,0) call reada(controlcard,'DIST_CUT',dist_cut,5.0d0) call multreadi(controlcard,"IFRAG",ifrag_(1,1),2*nfrag_,0) call multreadi(controlcard,"IPAIR",ipair_(1,1),2*npair_,0) call multreada(controlcard,"WFRAG",wfrag_(1),nfrag_,0.0d0) call multreada(controlcard,"WPAIR",wpair_(1),npair_,0.0d0) write (iout,*) "NFRAG",nfrag_," NPAIR",npair_," NDIST",ndist_ write (iout,*) "IFRAG" do i=1,nfrag_ write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i) enddo write (iout,*) "IPAIR" do i=1,npair_ write (iout,*) i,ipair_(1,i),ipair_(2,i),wpair_(i) enddo call flush(iout) if (.not.refstr .and. nfrag_.gt.0) then write (iout,*) & "ERROR: no reference structure to compute distance restraints" write (iout,*) & "Restraints must be specified explicitly (NDIST=number)" stop endif if (nfrag_.lt.2 .and. npair_.gt.0) then write (iout,*) "ERROR: Less than 2 fragments specified", & " but distance restraints between pairs requested" stop endif call flush(iout) do i=1,nfrag_ if (ifrag_(1,i).lt.nstart_sup) ifrag_(1,i)=nstart_sup if (ifrag_(2,i).gt.nstart_sup+nsup-1) & ifrag_(2,i)=nstart_sup+nsup-1 c write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i) call flush(iout) if (wfrag_(i).gt.0.0d0) then do j=ifrag_(1,i),ifrag_(2,i)-1 do k=j+1,ifrag_(2,i) write (iout,*) "j",j," k",k ddjk=dist(j,k) if (constr_dist.eq.1) then nhpb=nhpb+1 ihpb(nhpb)=j jhpb(nhpb)=k dhpb(nhpb)=ddjk forcon(nhpb)=wfrag_(i) else if (constr_dist.eq.2) then if (ddjk.le.dist_cut) then nhpb=nhpb+1 ihpb(nhpb)=j jhpb(nhpb)=k dhpb(nhpb)=ddjk forcon(nhpb)=wfrag_(i) endif else nhpb=nhpb+1 ihpb(nhpb)=j jhpb(nhpb)=k dhpb(nhpb)=ddjk forcon(nhpb)=wfrag_(i)*dexp(-0.5d0*(ddjk/dist_cut)**2) endif write (iout,'(a,3i5,f8.2,1pe12.2)') "+dist.constr ", & nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb) enddo enddo endif enddo do i=1,npair_ if (wpair_(i).gt.0.0d0) then ii = ipair_(1,i) jj = ipair_(2,i) if (ii.gt.jj) then itemp=ii ii=jj jj=itemp endif do j=ifrag_(1,ii),ifrag_(2,ii) do k=ifrag_(1,jj),ifrag_(2,jj) nhpb=nhpb+1 ihpb(nhpb)=j jhpb(nhpb)=k forcon(nhpb)=wpair_(i) dhpb(nhpb)=dist(j,k) write (iout,'(a,3i5,f8.2,f10.1)') "+dist.constr ", & nhpb,ihpb(nhpb),jhpb(nhpb),dhpb(nhpb),forcon(nhpb) enddo enddo endif enddo do i=1,ndist_ read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(i),dhpb1(i), & ibecarb(i),forcon(nhpb+1) if (forcon(nhpb+1).gt.0.0d0) then nhpb=nhpb+1 if (ibecarb(i).gt.0) then ihpb(i)=ihpb(i)+nres jhpb(i)=jhpb(i)+nres endif if (dhpb(nhpb).eq.0.0d0) & dhpb(nhpb)=dist(ihpb(nhpb),jhpb(nhpb)) endif enddo do i=1,nhpb write (iout,'(a,3i5,2f8.2,i2,f10.1)') "+dist.constr ", & i,ihpb(i),jhpb(i),dhpb(i),dhpb1(i),ibecarb(i),forcon(i) enddo call flush(iout) return end