include 'COMMON.IOUNITS'
c calculating dE/ddc1
- if (nres.lt.3) return
+ if (nres.lt.3) goto 18
do j=1,3
gcart(j,1)=gcart(j,1)+gloc(1,icg)*dphi(j,1,4)
& +gloc(nres-2,icg)*dtheta(j,1,3)
enddo
endif
enddo
+c----------------------------------------------------------------------
+C INTERTYP=1 SC...Ca...Ca...Ca
+C INTERTYP=2 Ca...Ca...Ca...SC
+C INTERTYP=3 SC...Ca...Ca...SC
+c calculating dE/ddc1
+ 18 continue
+ if (nres.lt.2) return
+ if ((nres.lt.3).and.(itype(1).eq.10)) return
+ if (itype(1).ne.10) then
+ do j=1,3
+cc Derviative was calculated for oposite vector of side chain therefore
+c there is "-" sign before gloc_sc
+ gxcart(j,1)=gxcart(j,1)-gloc_sc(1,0,icg)*
+ & dtauangle(j,1,1,3)
+ gcart(j,1)=gcart(j,1)+gloc_sc(1,0,icg)*
+ & dtauangle(j,1,2,3)
+ if (itype(2).ne.10) then
+ gxcart(j,1)= gxcart(j,1)
+ & -gloc_sc(3,0,icg)*dtauangle(j,3,1,3)
+ gcart(j,1)=gcart(j,1)+gloc_sc(3,0,icg)*
+ dtauangle(j,3,2,3)
+ endif
+ enddo
+ endif
+ if (nres.ge.3).and.(itype(3).ne.10) then
+ do j=1,3
+ gcart(j,1)=gcart(j,1)+gloc_sc(2,1,icg)*dtauangle(j,2,1,4)
+ enddo
+ endif
+c As potetnial DO NOT depend on omicron anlge their derivative is
+c ommited
+c & +gloc_sc(intertyp,nres-2,icg)*dtheta(j,1,3)
+
+c Calculating the remainder of dE/ddc2
+ do j=1,3
+ if(itype(2).ne.10) then
+ if (itype(1).ne.10) gxcart=(j,2)=gxcart(j,2)+
+ & gloc_sc(3,0,icg)*dtauangle(j,3,3,3)
+ if ((itype(3).ne.10).and.(nres.ge.3)) then
+ gxcart(j,2)=gxcart(j,2)-gloc_sc(3,1,icg)*dtauangle(j,3,1,4)
+cc the - above is due to different vector direction
+ gcart(j,2)=gcart(j,2)+gloc_sc(3,1,icg)*dtauangle(j,3,2,4)
+ endif
+ if (nres.gt.3) then
+ gxcart(j,2)=gxcart(j,2)-gloc_sc(2,1,icg)*dtauangle(j,1,1,4)
+cc the - above is due to different vector direction
+ gcart(j,2)=gcart(j,2)+gloc_sc(2,1,icg)*dtauangle(j,1,2,4)
+ endif
+ endif
+ if (itype(1).ne.10) then
+ gcart(j,2)=gcart(j,2)+gloc_sc(1,0,icg)*dtauangle(j,1,3,3)
+ endif
+ if ((itype(3).ne.10).and(nres.ge.3)) then
+ gcart(j,2)=gcart(j,2)+gloc_sc(2,1,icg)*dtauangle(j,2,2,4)
+ endif
+c If there are more than five residues
+ if(nres.ge.5) then
+ do i=3,nres-2
+ do j=1,3
+ if (itype(i).ne.10) then
+ gxcart(j,i)=gxcart(j,i)+gloc_sc(2,i-2,icg)
+ & *dtauangle(j,2,3,i+1)
+ & -gloc_sc(1,i-1,icg)*dtauangle(j,1,1i+2)
+ gcart(j,i)=gcart(j,i)+gloc_sc(1,i-1,icg)*
+ & *dtauangle(j,1,2,i+2)
+ if (itype(i-1).ne.10) then
+ gxcart(j,i)=gxcart(j,i)+gloc_sc(3,i-2,icg)
+ &*dtauangle(j,3,3,i+1)
+ endif
+ if (itype(i+1).ne.10) then
+ gxcart(j,i)=gxcart(j,i)-gloc_sc(3,i-1,icg)
+ &*dtauangle(j,3,1,i+2)
+ gcart(j,i)=gcart(j,i)+gloc_sc(3,i-1,icg)
+ &*dtauangle(j,3,2,i+2)
+ endif
+ endif
+ if (itype(i-1).ne.10) then
+ gcart(j,i)=gcart(j,i)+gloc_sc(1,i-2,icg)*
+ & dtauangle(j,1,3,i+1)
+ endif
+ if (itype(i+1).ne.10) then
+ gcart(j,i)=gcart(j,i)+gloc_sc(2,i-1,icg)*
+ & dtauangle(j,2,2,i+2)
+ endif
+ if (itype(i+2).ne.10) then
+ gcart(j,i)=gcart(j,i)+gloc_sc(2,i,icg)*
+ & dtauangle(j,2,1,i+3)
+ endif
+ enddo
+ enddo
+ endif
+c Setting dE/ddnres-1
+ if(nres.ge.4) then
+ do j=1,3
+ if (itype(nres-1).ne.10) then
+ gxcart(j,nres-1)=gxcart(j,nres-1)+gloc_sc(2,nres-3,icg)
+ & *dtauangle(j,2,3,nres)
+ if (itype(nres-2).ne.10) then
+ gxcart(j,nres-1)=gxcart(j,nres-1)+gloc_sc(3,nres-3,icg)
+ & *dtauangle(j,3,3,nres)
+ endif
+ if (itype(nres).ne.10) then
+ gxcart(j,nres-1)=gxcart(j,nres-1)-gloc_sc(3,nres-2,icg)
+ & *dtauangle(j,3,1,nres+1)
+ gcart(j,nres-1)=gcart(j,nres-1)+gloc_sc(3,nres-2,icg)
+ & *dtauangle(j,3,2,nres+1)
+ endif
+ endif
+ if (itype(nres-2).ne.10) then
+ gcart(j,nres-1)=gcart(j,nres-1)+gloc_sc(2,nres-3,icg)*
+ & *dtauangle(j,2,3,nres)
+ endif
+ if (itype(nres).ne.10) then
+ gcart(j,nres-1)=gcart(j,nres-1)+gloc_sc(2,nres-2,icg)*
+ *dtauangle(j,2,2,nres+1)
+ endif
+ enddo
+ endif
+c Settind dE/ddnres
+ if (nres.ge.3).and(itype(nres).ne.10)then
+ do j=1,3
+ gxcart(j,nres)=gxcart(j,nres)+gloc_sc(3,nres-2,icg)
+ & *dtauangle(j,3,3,nres+1)+gloc_sc(2,nres-2,icg)
+ & *dtauangle(j,2,3,nres+1)
+ enddo
+c The side-chain vector derivatives
return
end
projects / unres.git / blobdiff