READ_HOMOL_FRAG wham
[unres.git] / source / wham / src / molread_zs.F
index 5ddff14..87f0c7b 100644 (file)
@@ -375,7 +375,7 @@ c-------------------------------------------------------------------------------
       integer ifrag_(2,100),ipair_(2,100)
       double precision wfrag_(100),wpair_(100)
       character*500 controlcard
-c      write (iout,*) "Calling read_dist_constr"
+      write (iout,*) "Calling read_dist_constr",constr_dist
 c      write (iout,*) "nres",nres," nstart_sup",nstart_sup," nsup",nsup
 c      call flush(iout)
       call card_concat(controlcard,.true.)
@@ -471,8 +471,14 @@ c        write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i)
         endif
       enddo 
       do i=1,ndist_
+       if (constr_dist.eq.11) then
+         read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(i),dhpb1(i),
+     &     ibecarb(i),forcon(nhpb+1),fordepth(nhpb+1)
+         fordepth(nhpb+1)=fordepth(nhpb+1)/forcon(nhpb+1)
+       else
         read (inp,*) ihpb(nhpb+1),jhpb(nhpb+1),dhpb(i),dhpb1(i),
      &     ibecarb(i),forcon(nhpb+1)
+       endif
         if (forcon(nhpb+1).gt.0.0d0) then
           nhpb=nhpb+1
           if (ibecarb(i).gt.0) then
@@ -484,8 +490,14 @@ c        write (iout,*) i,ifrag_(1,i),ifrag_(2,i),wfrag_(i)
         endif
       enddo
       do i=1,nhpb
+       if (constr_dist.eq.11) then
+          write (iout,'(a,3i5,2f8.2,i2,2f10.1)') "+dist.constr11 ",
+     &     i,ihpb(i),jhpb(i),dhpb(i),dhpb1(i),ibecarb(i),forcon(i),
+     &     fordepth(i)
+       else
           write (iout,'(a,3i5,2f8.2,i2,f10.1)') "+dist.constr ",
      &     i,ihpb(i),jhpb(i),dhpb(i),dhpb1(i),ibecarb(i),forcon(i)
+       endif
       enddo
       call flush(iout)
       return
@@ -508,6 +520,7 @@ c====-------------------------------------------------------------------
       include 'COMMON.IOUNITS'
       include 'COMMON.GEO'
       include 'COMMON.INTERACT'
+      include 'COMMON.NAMES'
       include 'COMMON.HOMRESTR'
 c
 c For new homol impl
@@ -523,14 +536,18 @@ c    &    sigma_odl_temp(maxres,maxres,max_template)
       character*2 kic2
       character*24 model_ki_dist, model_ki_angle
       character*500 controlcard
-      integer ki, i, j, k, l
+      integer ki, i, j, k, l, ii_in_use(maxdim),i_tmp,idomain_tmp
+      integer idomain(max_template,maxres)
       logical lprn /.true./
-      logical unres_pdb
+      integer ilen
+      external ilen
+      logical unres_pdb,liiflag
 c
 c     FP - Nov. 2014 Temporary specifications for new vars
 c
-      double precision rescore_tmp,x12,y12,z12
+      double precision rescore_tmp,x12,y12,z12,rescore2_tmp
       double precision, dimension (max_template,maxres) :: rescore
+      double precision, dimension (max_template,maxres) :: rescore2
       character*24 tpl_k_rescore
 c -----------------------------------------------------------------
 c Reading multiple PDB ref structures and calculation of retraints
@@ -546,8 +563,9 @@ c Alternative: reading from input
       call reada(controlcard,"HOMOL_THETA",waga_theta,1.0d0) ! new
       call reada(controlcard,"HOMOL_SCD",waga_d,1.0d0) ! new
       call reada(controlcard,'DIST_CUT',dist_cut,5.0d0) ! for diff ways of calc sigma
-      call readi(controlcard,"HOMOL_NSET",homol_nset,1)       
+      call reada(controlcard,'DIST2_CUT',dist2_cut,9999.0d0)
+      call readi(controlcard,"HOMOL_NSET",homol_nset,1)
+      read2sigma=(index(controlcard,'READ2SIGMA').gt.0)
       call readi(controlcard,"IHSET",ihset,1)       
       if (homol_nset.gt.1)then
          call card_concat(controlcard,.true.)
@@ -579,6 +597,11 @@ c
 c
 c  Reading HM global scores (prob not required)
 c
+      do i = nnt,nct
+        do k=1,constr_homology
+         idomain(k,i)=0
+        enddo
+      enddo
 c     open (4,file="HMscore")
 c     do k=1,constr_homology
 c       read (4,*,end=521) hmscore_tmp
@@ -587,8 +610,19 @@ c       write(*,*) "Model", k, ":", hmscore(k)
 c     enddo
 c521  continue
 
+      ii=0
+      do i = nnt,nct-2 
+        do j=i+2,nct 
+        ii=ii+1
+        ii_in_use(ii)=0
+        enddo
+      enddo
 c     write(iout,*) "waga_theta",waga_theta,"waga_d",waga_d
 
+      if (read_homol_frag) then
+        call read_klapaucjusz
+      else
+
       do k=1,constr_homology
 
         read(inp,'(a)') pdbfile
@@ -596,9 +630,12 @@ c  Next stament causes error upon compilation (?)
 c       if(me.eq.king.or. .not. out1file)
 c         write (iout,'(2a)') 'PDB data will be read from file ',
 c    &   pdbfile(:ilen(pdbfile))
+         write (iout,'(a,5x,a)') 'HOMOL: Opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
         open(ipdbin,file=pdbfile,status='old',err=33)
         goto 34
-  33    write (iout,'(a)') 'Error opening PDB file.'
+  33    write (iout,'(a,5x,a)') 'Error opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
         stop
   34    continue
 c        print *,'Begin reading pdb data'
@@ -609,10 +646,6 @@ c
         write(kic2,'(bz,i2.2)') k
 
         tpl_k_rescore="template"//kic2//".sco"
-c       tpl_k_sigma_odl="template"//kic2//".sigma_odl"
-c       tpl_k_sigma_dih="template"//kic2//".sigma_dih"
-c       tpl_k_sigma_theta="template"//kic2//".sigma_theta"
-c       tpl_k_sigma_d="template"//kic2//".sigma_d"
 
         unres_pdb=.false.
         call readpdb
@@ -646,96 +679,82 @@ c From read_dist_constr (commented out 25/11/2014 <-> res sim)
 c
 c         write(iout,*) "tpl_k_rescore - ",tpl_k_rescore
           open (ientin,file=tpl_k_rescore,status='old')
-          do irec=1,maxdim ! loop for reading res sim 
-            if (irec.eq.1) then
-               rescore(k,irec)=0.0d0
-               goto 1301 
-            endif
-            read (ientin,*,end=1401) rescore_tmp
+          if (nnt.gt.1) rescore(k,1)=0.0d0
+          do irec=nnt,nct ! loop for reading res sim 
+            if (read2sigma) then
+             read (ientin,*,end=1401) i_tmp,rescore2_tmp,rescore_tmp,
+     &                                idomain_tmp
+             i_tmp=i_tmp+nnt-1
+             idomain(k,i_tmp)=idomain_tmp
+             rescore(k,i_tmp)=rescore_tmp
+             rescore2(k,i_tmp)=rescore2_tmp
+             write(iout,'(a7,i5,2f10.5,i5)') "rescore",
+     &                      i_tmp,rescore2_tmp,rescore_tmp,
+     &                                idomain_tmp
+            else
+             idomain(k,irec)=1
+             read (ientin,*,end=1401) rescore_tmp
+
 c           rescore(k,irec)=rescore_tmp+1.0d0 ! to avoid 0 values
-            rescore(k,irec)=0.5d0*(rescore_tmp+0.5d0) ! alt transf to reduce scores
-c            write(iout,*) "rescore(",k,irec,") =",rescore(k,irec)
- 1301     continue
+             rescore(k,irec)=0.5d0*(rescore_tmp+0.5d0) ! alt transf to reduce scores
+c           write(iout,*) "rescore(",k,irec,") =",rescore(k,irec)
+            endif
           enddo  
  1401   continue
-          close (ientin)        
-c         open (ientin,file=tpl_k_sigma_odl,status='old')
-c         do irec=1,maxdim ! loop for reading sigma_odl
-c            read (ientin,*,end=1401) i, j, 
-c    &                                sigma_odl_temp(i+nnt-1,j+nnt-1,k) ! new variable (?)
-c            sigma_odl_temp(j+nnt-1,i+nnt-1,k)= ! which purpose?
-c    &       sigma_odl_temp(i+nnt-1,j+nnt-1,k) 
-c         enddo
-c 1401   continue
-c         close (ientin)
+        close (ientin)        
         if (waga_dist.ne.0.0d0) then
           ii=0
-          do i = nnt,nct-2 ! right? without parallel.
-            do j=i+2,nct ! right?
-c         do i = 1,nres ! alternative for bounds as used to set initial values in orig. read_constr_homology 
-c           do j=i+2,nres ! ibid
-c         do i = nnt,nct-2 ! alternative for bounds as used to assign dist restraints in orig. read_constr_homology (s. above)
-c           do j=i+2,nct ! ibid
+          do i = nnt,nct-2 
+            do j=i+2,nct 
+
+              x12=c(1,i)-c(1,j)
+              y12=c(2,i)-c(2,j)
+              z12=c(3,i)-c(3,j)
+              distal=dsqrt(x12*x12+y12*y12+z12*z12) 
+c              write (iout,*) k,i,j,distal,dist2_cut
+
+            if (idomain(k,i).eq.idomain(k,j).and.idomain(k,i).ne.0
+     &            .and. distal.le.dist2_cut ) then
+
               ii=ii+1
+              ii_in_use(ii)=1
+              l_homo(k,ii)=.true.
+
 c             write (iout,*) "k",k
 c             write (iout,*) "i",i," j",j," constr_homology",
 c    &                       constr_homology
               ires_homo(ii)=i
               jres_homo(ii)=j
-c
-c Attempt to replace dist(i,j) by its definition in ...
-c
-              x12=c(1,i)-c(1,j)
-              y12=c(2,i)-c(2,j)
-              z12=c(3,i)-c(3,j)
-              distal=dsqrt(x12*x12+y12*y12+z12*z12)
               odl(k,ii)=distal
-c
-c             odl(k,ii)=dist(i,j)
-c             write (iout,*) "dist(",i,j,") =",dist(i,j)
-c             write (iout,*) "distal = ",distal
-c             write (iout,*) "odl(",k,ii,") =",odl(k,ii)
-c            write(iout,*) "rescore(",k,i,") =",rescore(k,i),
-c     &                      "rescore(",k,j,") =",rescore(k,j)
-c
-c  Calculation of sigma from res sim
-c
-c             if (odl(k,ii).le.6.0d0) then
-c             sigma_odl(k,ii)=hmscore(k)*rescore(k,i)*rescore(k,j)
-c    Other functional forms possible depending on odl(k,ii), eg.
-c
-            if (odl(k,ii).le.dist_cut) then
-              sigma_odl(k,ii)=rescore(k,i)+rescore(k,j) ! other exprs possible
-c             sigma_odl(k,ii)=hmscore(k)*rescore(k,i)*rescore(k,j)
-c              write (iout,*) "c sigma_odl",k,ii,sigma_odl(k,ii)
-            else
+              if (read2sigma) then
+                sigma_odl(k,ii)=0
+                do ik=i,j
+                 sigma_odl(k,ii)=sigma_odl(k,ii)+rescore2(k,ik)
+                enddo
+                sigma_odl(k,ii)=sigma_odl(k,ii)/(j-i+1)
+                if (odl(k,ii).gt.dist_cut) sigma_odl(k,ii) = 
+     &        sigma_odl(k,ii)*dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+              else
+                if (odl(k,ii).le.dist_cut) then
+                 sigma_odl(k,ii)=rescore(k,i)+rescore(k,j) 
+                else
 #ifdef OLDSIGMA
-              sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* ! sigma ~ rescore ~ error
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
      &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2)
 #else
-              sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* ! sigma ~ rescore ~ error
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
      &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
-c              write (iout,*) "d sigma_odl",k,ii,sigma_odl(k,ii),
-c     &           odl(k,ii),dist_cut
 #endif
-c   Following expr replaced by a positive exp argument
-c             sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))*
-c    &                      dexp(-0.5d0*(odl(k,ii)/dist_cut)**2)
-
-c             sigma_odl(k,ii)=hmscore(k)*rescore(k,i)*rescore(k,j)*
-c    &                      dexp(-0.5d0*(odl(k,ii)/dist_cut)**2)
+                endif
+              endif
+              sigma_odl(k,ii)=1.0d0/(sigma_odl(k,ii)*sigma_odl(k,ii)) 
+            else
+              ii=ii+1
+              l_homo(k,ii)=.false.
             endif
-c
-              sigma_odl(k,ii)=1.0d0/(sigma_odl(k,ii)*sigma_odl(k,ii)) ! rescore ~ error
-c             sigma_odl(k,ii)=sigma_odl(k,ii)*sigma_odl(k,ii)
-c
-c             sigma_odl(k,ii)=sigma_odl_temp(i,j,k)* ! new var read from file (?)
-c    &                        sigma_odl_temp(i,j,k)  ! not inverse because of use of res. similarity
             enddo
-c           read (ientin,*) sigma_odl(k,ii) ! 1st variant
           enddo
-c         lim_odl=ii
-c         if (constr_homology.gt.0) call homology_partition
+        lim_odl=ii
         endif
 c
 c     Theta, dihedral and SC retraints
@@ -750,10 +769,11 @@ c    &                            sigma_dih(k,i+nnt-1)
 c         enddo
 c1402   continue
 c         close (ientin)
-          do i = nnt+3,nct ! right? without parallel.
-c         do i=1,nres ! alternative for bounds acc to readpdb?
-c         do i=1,nres-3 ! alternative for bounds as used to set initial values in orig. read_constr_homology
-c         do i=idihconstr_start_homo,idihconstr_end_homo ! with FG parallel.
+          do i = nnt+3,nct 
+            if (idomain(k,i).eq.0) then 
+               sigma_dih(k,i)=0.0
+               cycle
+            endif
             dih(k,i)=phiref(i) ! right?
 c           read (ientin,*) sigma_dih(k,i) ! original variant
 c             write (iout,*) "dih(",k,i,") =",dih(k,i)
@@ -762,19 +782,19 @@ c    &                      "rescore(",k,i-1,") =",rescore(k,i-1),
 c    &                      "rescore(",k,i-2,") =",rescore(k,i-2),
 c    &                      "rescore(",k,i-3,") =",rescore(k,i-3)
 
-            sigma_dih(k,i)=rescore(k,i)+rescore(k,i-1)+
-     &                     rescore(k,i-2)+rescore(k,i-3)  !  right expression ?
-c
+            sigma_dih(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                     rescore(k,i-2)+rescore(k,i-3))/4.0
+c            if (read2sigma) sigma_dih(k,i)=sigma_dih(k,i)/4.0
 c           write (iout,*) "Raw sigmas for dihedral angle restraints"
 c           write (iout,'(i5,10(2f8.2,4x))') i,sigma_dih(k,i)
 c           sigma_dih(k,i)=hmscore(k)*rescore(k,i)*rescore(k,i-1)*
 c                          rescore(k,i-2)*rescore(k,i-3)  !  right expression ?
 c   Instead of res sim other local measure of b/b str reliability possible
-            sigma_dih(k,i)=1.0d0/(sigma_dih(k,i)*sigma_dih(k,i))
+            if (sigma_dih(k,i).ne.0)
+     &      sigma_dih(k,i)=1.0d0/(sigma_dih(k,i)*sigma_dih(k,i))
 c           sigma_dih(k,i)=sigma_dih(k,i)*sigma_dih(k,i)
-            if (i-nnt-2.gt.lim_dih) lim_dih=i-nnt-2 ! right?
-c           if (i+nnt-1.gt.lim_dih) lim_dih=i+nnt-1 ! original when readin i from file
           enddo
+          lim_dih=nct-nnt-2 
         endif
 
         if (waga_theta.gt.0.0d0) then
@@ -790,20 +810,25 @@ c         close (ientin)
           do i = nnt+2,nct ! right? without parallel.
 c         do i = i=1,nres ! alternative for bounds acc to readpdb?
 c         do i=ithet_start,ithet_end ! with FG parallel.
+             if (idomain(k,i).eq.0) then  
+              sigma_theta(k,i)=0.0
+              cycle
+             endif
              thetatpl(k,i)=thetaref(i)
 c            write (iout,*) "thetatpl(",k,i,") =",thetatpl(k,i)
 c            write(iout,*)  "rescore(",k,i,") =",rescore(k,i),
 c    &                      "rescore(",k,i-1,") =",rescore(k,i-1),
 c    &                      "rescore(",k,i-2,") =",rescore(k,i-2)
 c            read (ientin,*) sigma_theta(k,i) ! 1st variant
-             sigma_theta(k,i)=rescore(k,i)+rescore(k,i-1)+
-     &                        rescore(k,i-2) !  right expression ?
-             sigma_theta(k,i)=1.0d0/(sigma_theta(k,i)*sigma_theta(k,i))
+             sigma_theta(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                        rescore(k,i-2))/3.0
+c             if (read2sigma) sigma_theta(k,i)=sigma_theta(k,i)/3.0
+             if (sigma_theta(k,i).ne.0)
+     &       sigma_theta(k,i)=1.0d0/(sigma_theta(k,i)*sigma_theta(k,i))
 
 c            sigma_theta(k,i)=hmscore(k)*rescore(k,i)*rescore(k,i-1)*
 c                             rescore(k,i-2) !  right expression ?
 c            sigma_theta(k,i)=sigma_theta(k,i)*sigma_theta(k,i)
-             if (i-nnt-1.gt.lim_theta) lim_theta=i-nnt-1 ! right?
           enddo
         endif
 
@@ -815,12 +840,15 @@ c            sigma_d(k,i+nnt-1)=sigma_d(k,i+nnt-1)* ! not inverse because of use
 c    &                          sigma_d(k,i+nnt-1)
 c         enddo
 c1404   continue
-          close (ientin)
 
           do i = nnt,nct ! right? without parallel.
 c         do i=2,nres-1 ! alternative for bounds acc to readpdb?
 c         do i=loc_start,loc_end ! with FG parallel.
-             if (itype(i).eq.10) goto 1 ! right?
+               if (itype(i).eq.10) cycle 
+               if (idomain(k,i).eq.0 ) then 
+                  sigma_d(k,i)=0.0
+                  cycle
+               endif
                xxtpl(k,i)=xxref(i)
                yytpl(k,i)=yyref(i)
                zztpl(k,i)=zzref(i)
@@ -829,18 +857,56 @@ c              write (iout,*) "yytpl(",k,i,") =",yytpl(k,i)
 c              write (iout,*) "zztpl(",k,i,") =",zztpl(k,i)
 c              write(iout,*)  "rescore(",k,i,") =",rescore(k,i)
                sigma_d(k,i)=rescore(k,i) !  right expression ?
-               sigma_d(k,i)=1.0d0/(sigma_d(k,i)*sigma_d(k,i))
+               if (sigma_d(k,i).ne.0)
+     &          sigma_d(k,i)=1.0d0/(sigma_d(k,i)*sigma_d(k,i))
 
 c              sigma_d(k,i)=hmscore(k)*rescore(k,i) !  right expression ?
 c              sigma_d(k,i)=sigma_d(k,i)*sigma_d(k,i)
 c              read (ientin,*) sigma_d(k,i) ! 1st variant
-               if (i-nnt+1.gt.lim_xx) lim_xx=i-nnt+1 ! right?
-    1     continue
           enddo
         endif
-        close(ientin)
       enddo
-      if (waga_dist.ne.0.0d0) lim_odl=ii
+c
+c remove distance restraints not used in any model from the list
+c shift data in all arrays
+c
+      if (waga_dist.ne.0.0d0) then
+        ii=0
+        liiflag=.true.
+        do i=nnt,nct-2 
+         do j=i+2,nct 
+          ii=ii+1
+          if (ii_in_use(ii).eq.0.and.liiflag) then
+            liiflag=.false.
+            iistart=ii
+          endif
+          if (ii_in_use(ii).ne.0.and..not.liiflag.or.
+     &                   .not.liiflag.and.ii.eq.lim_odl) then
+             if (ii.eq.lim_odl) then
+              iishift=ii-iistart+1
+             else
+              iishift=ii-iistart
+             endif
+             liiflag=.true.
+             do ki=iistart,lim_odl-iishift
+              ires_homo(ki)=ires_homo(ki+iishift)
+              jres_homo(ki)=jres_homo(ki+iishift)
+              ii_in_use(ki)=ii_in_use(ki+iishift)
+              do k=1,constr_homology
+               odl(k,ki)=odl(k,ki+iishift)
+               sigma_odl(k,ki)=sigma_odl(k,ki+iishift)
+               l_homo(k,ki)=l_homo(k,ki+iishift)
+              enddo
+             enddo
+             ii=ii-iishift
+             lim_odl=lim_odl-iishift
+          endif
+         enddo
+        enddo
+      endif
+
+      endif ! .not. klapaucjusz     
+
       if (constr_homology.gt.0) call homology_partition
       if (constr_homology.gt.0) call init_int_table
 cd      write (iout,*) "homology_partition: lim_theta= ",lim_theta,
@@ -855,32 +921,292 @@ cd      write(iout,*) "waga_theta",waga_theta,"waga_d",waga_d
       if(me.eq.king .or. .not. out1file .and. fg_rank.eq.0) then
        write (iout,*) "Distance restraints from templates"
        do ii=1,lim_odl
-       write(iout,'(3i5,10(2f16.2,4x))') ii,ires_homo(ii),jres_homo(ii),
-     &  (odl(ki,ii),1.0d0/dsqrt(sigma_odl(ki,ii)),ki=1,constr_homology)
+       write(iout,'(3i5,100(2f8.2,1x,l1,4x))') 
+     &  ii,ires_homo(ii),jres_homo(ii),
+     &  (odl(ki,ii),1.0d0/dsqrt(sigma_odl(ki,ii)),l_homo(ki,ii),
+     &  ki=1,constr_homology)
        enddo
        write (iout,*) "Dihedral angle restraints from templates"
-       do i=nnt+3,lim_dih
-        write (iout,'(i5,10(2f8.2,4x))') i,(rad2deg*dih(ki,i),
+       do i=nnt+3,nct
+        write (iout,'(i5,a4,100(2f8.2,4x))') i,restyp(itype(i)),
+     &      (rad2deg*dih(ki,i),
      &      rad2deg/dsqrt(sigma_dih(ki,i)),ki=1,constr_homology)
        enddo
        write (iout,*) "Virtual-bond angle restraints from templates"
-       do i=nnt+2,lim_theta
-        write (iout,'(i5,10(2f8.2,4x))') i,(rad2deg*thetatpl(ki,i),
+       do i=nnt+2,nct
+        write (iout,'(i5,a4,100(2f8.2,4x))') i,restyp(itype(i)),
+     &      (rad2deg*thetatpl(ki,i),
      &      rad2deg/dsqrt(sigma_theta(ki,i)),ki=1,constr_homology)
        enddo
        write (iout,*) "SC restraints from templates"
-       do i=nnt,lim_xx
-        write(iout,'(i5,10(4f8.2,4x))') i,
+       do i=nnt,nct
+        write(iout,'(i5,100(4f8.2,4x))') i,
      &  (xxtpl(ki,i),yytpl(ki,i),zztpl(ki,i),
      &   1.0d0/dsqrt(sigma_d(ki,i)),ki=1,constr_homology)
        enddo
       endif
-#ifdef AIX
-      call flush_(iout)
-#else 
-      call flush(iout)
-#endif
 c -----------------------------------------------------------------
       return
       end
 c----------------------------------------------------------------------
+      subroutine read_klapaucjusz
+
+      include 'DIMENSIONS'
+      include 'DIMENSIONS.ZSCOPT'
+      include 'DIMENSIONS.FREE'
+#ifdef MPI
+      include 'mpif.h'
+#endif
+      include 'COMMON.SETUP'
+      include 'COMMON.CONTROL'
+      include 'COMMON.CHAIN'
+      include 'COMMON.IOUNITS'
+      include 'COMMON.GEO'
+      include 'COMMON.INTERACT'
+      include 'COMMON.NAMES'
+      include 'COMMON.HOMRESTR'
+      character*256 fragfile
+      integer ninclust(maxclust),inclust(max_template,maxclust),
+     &  nresclust(maxclust),iresclust(maxres,maxclust)
+
+      character*2 kic2
+      character*24 model_ki_dist, model_ki_angle
+      character*500 controlcard
+      integer ki, i, j, k, l, ii_in_use(maxdim),i_tmp,idomain_tmp
+      integer idomain(max_template,maxres)
+      logical lprn /.true./
+      integer ilen
+      external ilen
+      logical unres_pdb,liiflag
+c
+c
+      double precision rescore_tmp,x12,y12,z12,rescore2_tmp
+      double precision, dimension (max_template,maxres) :: rescore
+      double precision, dimension (max_template,maxres) :: rescore2
+      character*24 tpl_k_rescore
+
+c
+c For new homol impl
+c
+      include 'COMMON.VAR'
+c
+      double precision chomo(3,maxres2+2,max_template)
+      call getenv("FRAGFILE",fragfile) 
+      open(ientin,file=fragfile,status="old",err=10)
+      read(ientin,*) constr_homology,nclust
+      l_homo = .false.
+      sigma_theta=0.0
+      sigma_d=0.0
+      sigma_dih=0.0
+c Read pdb files 
+      do k=1,constr_homology 
+        read(ientin,'(a)') pdbfile
+        write (iout,'(a,5x,a)') 'KLAPAUCJUSZ: Opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        open(ipdbin,file=pdbfile,status='old',err=33)
+        goto 34
+  33    write (iout,'(a,5x,a)') 'Error opening PDB file',
+     &  pdbfile(:ilen(pdbfile))
+        stop
+  34    continue
+        unres_pdb=.false.
+        call readpdb
+        do i=1,2*nres
+          do j=1,3
+            chomo(j,i,k)=c(j,i)
+          enddo
+        enddo
+        do i=1,nres
+          rescore(k,i)=1.0d0
+          rescore2(k,i)=1.0d0
+        enddo
+      enddo
+c Read clusters
+      do i=1,nclust
+        read(ientin,*) ninclust(i),nresclust(i)
+        read(ientin,*) (inclust(k,i),k=1,ninclust(i))
+        read(ientin,*) (iresclust(k,i),k=1,nresclust(i))
+      enddo
+c
+c Loop over clusters
+c
+      do l=1,nclust
+        do ll = 1,ninclust(l)
+        
+        k = inclust(ll,l)
+        do i=1,nres
+          idomain(k,i)=0
+        enddo
+        do i=1,nresclust(l)
+          if (nnt.gt.1)  then
+            idomain(k,iresclust(i,l)+1) = 1
+          else
+            idomain(k,iresclust(i,l)) = 1
+          endif
+        enddo
+c
+c     Distance restraints
+c
+c          ... --> odl(k,ii)
+C Copy the coordinates from reference coordinates (?)
+        do i=1,2*nres
+          do j=1,3
+            c(j,i)=chomo(j,i,k)
+c           write (iout,*) "c(",j,i,") =",c(j,i)
+          enddo
+        enddo
+        call int_from_cart(.true.,.false.)
+        call sc_loc_geom(.false.)
+        do i=1,nres
+          thetaref(i)=theta(i)
+          phiref(i)=phi(i)
+        enddo
+        if (waga_dist.ne.0.0d0) then
+          ii=0
+          do i = nnt,nct-2 
+            do j=i+2,nct 
+
+              x12=c(1,i)-c(1,j)
+              y12=c(2,i)-c(2,j)
+              z12=c(3,i)-c(3,j)
+              distal=dsqrt(x12*x12+y12*y12+z12*z12) 
+c              write (iout,*) k,i,j,distal,dist2_cut
+
+            if (idomain(k,i).eq.idomain(k,j).and.idomain(k,i).ne.0
+     &            .and. distal.le.dist2_cut ) then
+
+              ii=ii+1
+              ii_in_use(ii)=1
+              l_homo(k,ii)=.true.
+
+c             write (iout,*) "k",k
+c             write (iout,*) "i",i," j",j," constr_homology",
+c    &                       constr_homology
+              ires_homo(ii)=i
+              jres_homo(ii)=j
+              odl(k,ii)=distal
+              if (read2sigma) then
+                sigma_odl(k,ii)=0
+                do ik=i,j
+                 sigma_odl(k,ii)=sigma_odl(k,ii)+rescore2(k,ik)
+                enddo
+                sigma_odl(k,ii)=sigma_odl(k,ii)/(j-i+1)
+                if (odl(k,ii).gt.dist_cut) sigma_odl(k,ii) = 
+     &        sigma_odl(k,ii)*dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+              else
+                if (odl(k,ii).le.dist_cut) then
+                 sigma_odl(k,ii)=rescore(k,i)+rescore(k,j) 
+                else
+#ifdef OLDSIGMA
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2)
+#else
+                 sigma_odl(k,ii)=(rescore(k,i)+rescore(k,j))* 
+     &                      dexp(0.5d0*(odl(k,ii)/dist_cut)**2-0.5d0)
+#endif
+                endif
+              endif
+              sigma_odl(k,ii)=1.0d0/(sigma_odl(k,ii)*sigma_odl(k,ii)) 
+            else
+              ii=ii+1
+c              l_homo(k,ii)=.false.
+            endif
+            enddo
+          enddo
+        lim_odl=ii
+        endif
+c
+c     Theta, dihedral and SC retraints
+c
+        if (waga_angle.gt.0.0d0) then
+          do i = nnt+3,nct 
+            if (idomain(k,i).eq.0) then 
+c               sigma_dih(k,i)=0.0
+               cycle
+            endif
+            dih(k,i)=phiref(i)
+            sigma_dih(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                     rescore(k,i-2)+rescore(k,i-3))/4.0
+c            write (iout,*) "k",k," l",l," i",i," rescore",rescore(k,i),
+c     &       " sigma_dihed",sigma_dih(k,i)
+            if (sigma_dih(k,i).ne.0)
+     &       sigma_dih(k,i)=1.0d0/(sigma_dih(k,i)*sigma_dih(k,i))
+          enddo
+          lim_dih=nct-nnt-2 
+        endif
+
+        if (waga_theta.gt.0.0d0) then
+          do i = nnt+2,nct
+             if (idomain(k,i).eq.0) then  
+c              sigma_theta(k,i)=0.0
+              cycle
+             endif
+             thetatpl(k,i)=thetaref(i)
+             sigma_theta(k,i)=(rescore(k,i)+rescore(k,i-1)+
+     &                        rescore(k,i-2))/3.0
+             if (sigma_theta(k,i).ne.0)
+     &       sigma_theta(k,i)=1.0d0/(sigma_theta(k,i)*sigma_theta(k,i))
+          enddo
+        endif
+
+        if (waga_d.gt.0.0d0) then
+          do i = nnt,nct
+               if (itype(i).eq.10) cycle 
+               if (idomain(k,i).eq.0 ) then 
+c                  sigma_d(k,i)=0.0
+                  cycle
+               endif
+               xxtpl(k,i)=xxref(i)
+               yytpl(k,i)=yyref(i)
+               zztpl(k,i)=zzref(i)
+               sigma_d(k,i)=rescore(k,i)
+               if (sigma_d(k,i).ne.0)
+     &          sigma_d(k,i)=1.0d0/(sigma_d(k,i)*sigma_d(k,i))
+               if (i-nnt+1.gt.lim_xx) lim_xx=i-nnt+1
+          enddo
+        endif
+      enddo ! l
+      enddo ! ll
+c
+c remove distance restraints not used in any model from the list
+c shift data in all arrays
+c
+      if (waga_dist.ne.0.0d0) then
+        ii=0
+        liiflag=.true.
+        do i=nnt,nct-2 
+         do j=i+2,nct 
+          ii=ii+1
+          if (ii_in_use(ii).eq.0.and.liiflag) then
+            liiflag=.false.
+            iistart=ii
+          endif
+          if (ii_in_use(ii).ne.0.and..not.liiflag.or.
+     &                   .not.liiflag.and.ii.eq.lim_odl) then
+             if (ii.eq.lim_odl) then
+              iishift=ii-iistart+1
+             else
+              iishift=ii-iistart
+             endif
+             liiflag=.true.
+             do ki=iistart,lim_odl-iishift
+              ires_homo(ki)=ires_homo(ki+iishift)
+              jres_homo(ki)=jres_homo(ki+iishift)
+              ii_in_use(ki)=ii_in_use(ki+iishift)
+              do k=1,constr_homology
+               odl(k,ki)=odl(k,ki+iishift)
+               sigma_odl(k,ki)=sigma_odl(k,ki+iishift)
+               l_homo(k,ki)=l_homo(k,ki+iishift)
+              enddo
+             enddo
+             ii=ii-iishift
+             lim_odl=lim_odl-iishift
+          endif
+         enddo
+        enddo
+      endif
+
+      return
+   10 stop "Error infragment file"
+      end
+c----------------------------------------------------------------------