[e40e335] | 1 | c **************************************************************
|
---|
| 2 | c
|
---|
| 3 | c This file contains the subroutines: enysol,tessel
|
---|
| 4 | c
|
---|
| 5 | c Copyright 2003-2005 Frank Eisenmenger, U.H.E. Hansmann,
|
---|
| 6 | c Shura Hayryan, Chin-Ku
|
---|
| 7 | c Copyright 2007 Frank Eisenmenger, U.H.E. Hansmann,
|
---|
| 8 | c Jan H. Meinke, Sandipan Mohanty
|
---|
| 9 | c
|
---|
| 10 | c **************************************************************
|
---|
| 11 |
|
---|
| 12 |
|
---|
| 13 | real*8 function enysol(nmol)
|
---|
| 14 |
|
---|
| 15 | include 'INCL.H'
|
---|
| 16 | c --------------------------------------------------------------
|
---|
| 17 | c
|
---|
| 18 | c Double Cubic Lattice algorithm for calculating the
|
---|
| 19 | c solvation energy of proteins using
|
---|
| 20 | c solvent accessible area method.
|
---|
| 21 | c
|
---|
| 22 | c if nmol == 0 do solvation energy over all residues.
|
---|
| 23 | c CALLS: nursat
|
---|
| 24 | c
|
---|
| 25 | c -------------------------------------------------------------
|
---|
| 26 | c TODO: Check the solvent energy for multiple molecules
|
---|
| 27 | dimension numbox(mxat),inbox(mxbox+1),indsort(mxat),look(mxat)
|
---|
| 28 | dimension xyz(mxinbox,3),radb(mxinbox),radb2(mxinbox)
|
---|
| 29 | logical surfc(mxpoint)
|
---|
| 30 |
|
---|
| 31 | ! common/ressurf/surfres(mxrs)
|
---|
| 32 |
|
---|
| 33 | eyslh = 0.0
|
---|
| 34 | eyslp = 0.0
|
---|
| 35 | if (nmol.eq.0) then
|
---|
| 36 | nrslow=irsml1(1)
|
---|
| 37 | nrshi=irsml2(ntlml)
|
---|
| 38 | else
|
---|
| 39 | nrslow = irsml1(nmol)
|
---|
| 40 | nrshi = irsml2(nmol)
|
---|
| 41 | endif
|
---|
| 42 | nlow = iatrs1(nrslow)
|
---|
| 43 | nup = iatrs2(nrshi)
|
---|
| 44 | do i=nrslow,nrshi
|
---|
| 45 | surfres(i) = 0.0d0
|
---|
| 46 | end do
|
---|
| 47 |
|
---|
| 48 | numat= nup - nlow + 1
|
---|
| 49 |
|
---|
| 50 | do i=1,mxbox+1
|
---|
| 51 | inbox(i)=0
|
---|
| 52 | end do
|
---|
| 53 |
|
---|
| 54 | asa=0.0d0
|
---|
| 55 | vdvol=0.0d0
|
---|
| 56 | eysl=0.0d0
|
---|
| 57 |
|
---|
| 58 | avr_x=xat(nlow)
|
---|
| 59 | avr_y=yat(nlow)
|
---|
| 60 | avr_z=zat(nlow)
|
---|
| 61 | xmin=xat(nlow)
|
---|
| 62 | ymin=yat(nlow)
|
---|
| 63 | zmin=zat(nlow)
|
---|
| 64 | xmax=xmin
|
---|
| 65 | ymax=ymin
|
---|
| 66 | zmax=zmin
|
---|
| 67 |
|
---|
| 68 | rmax=rvdw(nlow)
|
---|
| 69 |
|
---|
| 70 | do j=nlow+1,nup
|
---|
| 71 | if(xat(j).le.xmin) then
|
---|
| 72 | xmin=xat(j)
|
---|
| 73 | else if(xat(j).ge.xmax) then
|
---|
| 74 | xmax=xat(j)
|
---|
| 75 | end if
|
---|
| 76 | avr_x=avr_x+xat(j)
|
---|
| 77 | if(yat(j).le.ymin) then
|
---|
| 78 | ymin=yat(j)
|
---|
| 79 | else if(yat(j).ge.ymax) then
|
---|
| 80 | ymax=yat(j)
|
---|
| 81 | end if
|
---|
| 82 | avr_y=avr_y+yat(j)
|
---|
| 83 | if(zat(j).le.zmin) then
|
---|
| 84 | zmin=zat(j)
|
---|
| 85 | else if(zat(j).ge.zmax) then
|
---|
| 86 | zmax=zat(j)
|
---|
| 87 | end if
|
---|
| 88 | avr_z=avr_z+zat(j)
|
---|
| 89 | if(rvdw(j).ge.rmax) rmax=rvdw(j)
|
---|
| 90 | end do
|
---|
| 91 |
|
---|
| 92 | avr_x=avr_x/dble(numat)
|
---|
| 93 | avr_y=avr_y/dble(numat)
|
---|
| 94 | avr_z=avr_z/dble(numat)
|
---|
| 95 | diamax=2.d0*rmax
|
---|
| 96 |
|
---|
| 97 | c The sizes of the big box
|
---|
| 98 |
|
---|
| 99 | sizex=xmax-xmin
|
---|
| 100 | sizey=ymax-ymin
|
---|
| 101 | sizez=zmax-zmin
|
---|
| 102 |
|
---|
| 103 | c How many maximal diameters in each size ?
|
---|
| 104 |
|
---|
| 105 | ndx=sizex/diamax + 1
|
---|
| 106 | ndy=sizey/diamax + 1
|
---|
| 107 | ndz=sizez/diamax + 1
|
---|
| 108 |
|
---|
| 109 | c We may need the number of quadratic boxes in (X,Y) plane
|
---|
| 110 |
|
---|
| 111 | nqxy=ndx*ndy
|
---|
| 112 |
|
---|
| 113 | c The number of cubic boxes of the size "diamax"
|
---|
| 114 |
|
---|
| 115 | ncbox=nqxy*ndz
|
---|
| 116 | if(ncbox.ge.mxbox) then
|
---|
| 117 | print *,'enysol> bad ncbox',ncbox
|
---|
| 118 | stop
|
---|
| 119 | end if
|
---|
| 120 |
|
---|
| 121 | c Let us shift the borders to home all boxes
|
---|
| 122 |
|
---|
| 123 | shiftx=(dble(ndx)*diamax-sizex)/2.d0
|
---|
| 124 | shifty=(dble(ndy)*diamax-sizey)/2.d0
|
---|
| 125 | shiftz=(dble(ndz)*diamax-sizez)/2.d0
|
---|
| 126 | xmin=xmin-shiftx
|
---|
| 127 | ymin=ymin-shifty
|
---|
| 128 | zmin=zmin-shiftz
|
---|
| 129 | xmax=xmax+shiftx
|
---|
| 130 | ymax=ymax+shifty
|
---|
| 131 | zmax=zmax+shiftz
|
---|
| 132 |
|
---|
| 133 | c Finding the box of each atom
|
---|
| 134 |
|
---|
| 135 | do j=nlow,nup
|
---|
| 136 | mx=min(int(max((xat(j)-xmin)/diamax,0.0d0)),ndx-1)
|
---|
| 137 | my=min(int(max((yat(j)-ymin)/diamax,0.0d0)),ndy-1)
|
---|
| 138 | mz=min(int(max((zat(j)-zmin)/diamax,0.0d0)),ndz-1)
|
---|
| 139 | nboxj=mx+my*ndx+mz*nqxy+1
|
---|
| 140 | numbox(j)=nboxj
|
---|
| 141 | if (nboxj.gt.mxbox) then
|
---|
| 142 | write(*,'(a)') 'enysol> bad mxboxe-2'
|
---|
| 143 | write(*,*) 'diagnostics ...'
|
---|
| 144 | write(*,*) 'atom ',j
|
---|
| 145 | write(*,*) 'position ',xat(j),yat(j),zat(j)
|
---|
| 146 | write(*,*) 'box indices ',mx,my,mz
|
---|
| 147 | write(*,*) 'resulting boxindex and limit ',nboxj,mxbox
|
---|
| 148 |
|
---|
| 149 | stop
|
---|
| 150 | else
|
---|
| 151 | inbox(nboxj)=inbox(nboxj)+1
|
---|
| 152 | end if
|
---|
| 153 | end do
|
---|
| 154 |
|
---|
| 155 | c Summation over the boxes
|
---|
| 156 |
|
---|
| 157 | do i=1,ncbox
|
---|
| 158 | inbox(i+1)=inbox(i+1)+inbox(i)
|
---|
| 159 | end do
|
---|
| 160 |
|
---|
| 161 |
|
---|
| 162 | c Sorting the atoms by the their box numbers
|
---|
| 163 |
|
---|
| 164 | do i=nlow,nup
|
---|
| 165 | j=numbox(i)
|
---|
| 166 | jj=inbox(j)
|
---|
| 167 | indsort(jj)=i
|
---|
| 168 | inbox(j)=jj-1
|
---|
| 169 | end do
|
---|
| 170 |
|
---|
| 171 | c Getting started
|
---|
| 172 |
|
---|
| 173 | do iz=0,ndz-1 ! Over the boxes along Z-axis
|
---|
| 174 | do iy=0,ndy-1 !Over the boxes along Y-axis
|
---|
| 175 | do ix=0,ndx-1 !Over the boxes along X-axis
|
---|
| 176 |
|
---|
| 177 | ibox=ix+iy*ndx+iz*nqxy + 1
|
---|
| 178 |
|
---|
| 179 | c Does this box contain atoms ?
|
---|
| 180 |
|
---|
| 181 | lbn=inbox(ibox+1)-inbox(ibox)
|
---|
| 182 |
|
---|
| 183 | if(lbn.gt.0) then ! There are some atoms
|
---|
| 184 | nsx=max(ix-1,0)
|
---|
| 185 | nsy=max(iy-1,0)
|
---|
| 186 | nsz=max(iz-1,0)
|
---|
| 187 | nex=min(ix+1,ndx-1)
|
---|
| 188 | ney=min(iy+1,ndy-1)
|
---|
| 189 | nez=min(iz+1,ndz-1)
|
---|
| 190 |
|
---|
| 191 | c Atoms in the boxes around
|
---|
| 192 |
|
---|
| 193 | jcnt=1
|
---|
| 194 | do jz=nsz,nez
|
---|
| 195 | do jy=nsy,ney
|
---|
| 196 | do jx=nsx,nex
|
---|
| 197 | jbox=jx+jy*ndx+jz*nqxy+1
|
---|
| 198 | do ii=inbox(jbox)+1,inbox(jbox+1)
|
---|
| 199 | if(rvdw(indsort(ii)).gt.0.0d0) then
|
---|
| 200 | look(jcnt)=indsort(ii)
|
---|
| 201 | jcnt=jcnt+1
|
---|
| 202 | end if
|
---|
| 203 | end do
|
---|
| 204 | end do
|
---|
| 205 | end do
|
---|
| 206 | end do
|
---|
| 207 |
|
---|
| 208 | do ia=inbox(ibox)+1,inbox(ibox+1)
|
---|
| 209 | jbi=indsort(ia)
|
---|
| 210 | trad=rvdw(jbi)
|
---|
| 211 | if(trad.gt.0.0) then
|
---|
| 212 | nnei=0
|
---|
| 213 | do ib=1,jcnt-1
|
---|
| 214 | jtk=look(ib)
|
---|
| 215 | if(jtk.ne.jbi)then
|
---|
| 216 | dx=(xat(jbi)-xat(jtk))/trad
|
---|
| 217 | dy=(yat(jbi)-yat(jtk))/trad
|
---|
| 218 | dz=(zat(jbi)-zat(jtk))/trad
|
---|
| 219 | dd=dx*dx+dy*dy+dz*dz
|
---|
| 220 | akrad=rvdw(jtk)/trad
|
---|
| 221 | dr=1.0d0+akrad
|
---|
| 222 | dr=dr*dr
|
---|
| 223 | cc if contact
|
---|
| 224 | if(dd.le.dr) then
|
---|
| 225 | nnei=nnei+1
|
---|
| 226 | xyz(nnei,1)=dx
|
---|
| 227 | xyz(nnei,2)=dy
|
---|
| 228 | xyz(nnei,3)=dz
|
---|
| 229 | radb(nnei)=akrad
|
---|
| 230 | radb2(nnei)=akrad*akrad
|
---|
| 231 | end if
|
---|
| 232 | end if
|
---|
| 233 | end do
|
---|
| 234 | cc
|
---|
| 235 | do il=1,npnt
|
---|
| 236 | surfc(il)=.false.
|
---|
| 237 | end do
|
---|
| 238 |
|
---|
| 239 | c Check overlap
|
---|
| 240 |
|
---|
| 241 | lst=1
|
---|
| 242 | do il=1,npnt
|
---|
| 243 | sdd = 0.0d0
|
---|
| 244 | do ilk=1,3
|
---|
| 245 | sdd = sdd +(xyz(lst,ilk)+spoint(il,ilk))**2
|
---|
| 246 | end do
|
---|
| 247 | if(sdd.gt.radb2(lst)) then
|
---|
| 248 | do ik=1,nnei
|
---|
| 249 | sdd =0.0d0
|
---|
| 250 | do ilk=1,3
|
---|
| 251 | sdd = sdd +(xyz(ik,ilk)+spoint(il,ilk))**2
|
---|
| 252 | end do
|
---|
| 253 | if(sdd.le.radb2(ik)) then
|
---|
| 254 | lst=ik
|
---|
| 255 | go to 99
|
---|
| 256 | end if
|
---|
| 257 | end do
|
---|
| 258 | 99 continue
|
---|
| 259 |
|
---|
| 260 | if(ik.gt.nnei)then
|
---|
| 261 | surfc(il)=.true.
|
---|
| 262 | end if
|
---|
| 263 | end if
|
---|
| 264 | end do
|
---|
| 265 |
|
---|
| 266 | icount=0
|
---|
| 267 | dx=0.0d0
|
---|
| 268 | dy=0.0d0
|
---|
| 269 | dz=0.0d0
|
---|
| 270 | do il=1,npnt
|
---|
| 271 | if(surfc(il)) then
|
---|
| 272 | icount=icount+1
|
---|
| 273 | dx=dx+spoint(il,1)
|
---|
| 274 | dy=dy+spoint(il,2)
|
---|
| 275 | dz=dz+spoint(il,3)
|
---|
| 276 | end if
|
---|
| 277 | end do
|
---|
| 278 | sdr=4.d0*pi*trad*trad/dble(npnt)
|
---|
| 279 | area = sdr*dble(icount)
|
---|
| 280 | volume = sdr/3.0d0*(trad*dble(icount)
|
---|
| 281 | # +(xat(jbi)-avr_x)*dx
|
---|
| 282 | # +(yat(jbi)-avr_y)*dy
|
---|
| 283 | # +(zat(jbi)-avr_z)*dz)
|
---|
| 284 |
|
---|
| 285 | asa=asa+area
|
---|
| 286 | vdvol=vdvol+volume
|
---|
| 287 | eysl=eysl+area*sigma(jbi)
|
---|
| 288 | c Separate hydrophilic (h) and hyrdophobic (p) contributions to eysl
|
---|
| 289 | if (sigma(jbi).lt.0) then
|
---|
| 290 | eyslp = eyslp + area * sigma(jbi)
|
---|
| 291 | asap = asap + area
|
---|
| 292 | endif
|
---|
| 293 | if (sigma(jbi).gt.0) then
|
---|
| 294 | eyslh = eyslh + area * sigma(jbi)
|
---|
| 295 | asah = asah + area
|
---|
| 296 | endif
|
---|
| 297 | c Measure how much a residue is solvent accessible:
|
---|
| 298 | jres = nursat(jbi)
|
---|
| 299 | surfres(jres) = surfres(jres) + area
|
---|
| 300 | end if
|
---|
| 301 | end do
|
---|
| 302 | end if
|
---|
| 303 | end do
|
---|
| 304 | end do
|
---|
| 305 | end do
|
---|
| 306 |
|
---|
| 307 | c
|
---|
| 308 | if (isolscl) then
|
---|
| 309 | nhx=0
|
---|
| 310 | mhx=0
|
---|
| 311 | nbt=0
|
---|
| 312 | mbt=0
|
---|
| 313 | call helix(nhx,mhx,nbt,mbt)
|
---|
| 314 | eysl=((nhx+nbt)*eysl)/(irsml2(ntlml)-irsml1(1))
|
---|
| 315 | endif
|
---|
| 316 |
|
---|
| 317 | enysol = eysl
|
---|
| 318 |
|
---|
| 319 | return
|
---|
| 320 | end
|
---|
| 321 | c *********************
|
---|
| 322 | subroutine tessel
|
---|
| 323 | include 'INCL.H'
|
---|
| 324 | character lin*80
|
---|
| 325 |
|
---|
| 326 | c Skipping comment lines, which begin with '!'
|
---|
| 327 |
|
---|
| 328 | read(20,'(a)') lin
|
---|
| 329 | do while(lin(1:1).eq.'!')
|
---|
| 330 | read (20,'(a)') lin
|
---|
| 331 | end do
|
---|
| 332 |
|
---|
| 333 | c The first non-comment line is the number of the surface points
|
---|
| 334 |
|
---|
| 335 | read(lin(1:5),'(i5)') npnt
|
---|
| 336 | c write(*,'(a,i5)') 'the number of points---->',npnt
|
---|
| 337 |
|
---|
| 338 | c Read the surface points
|
---|
| 339 |
|
---|
| 340 | do i=1,npnt
|
---|
| 341 | read(20,'(3f20.10)') spoint(i,1),spoint(i,2),spoint(i,3)
|
---|
| 342 |
|
---|
| 343 | c write(31,'(3f20.10)') spoint(i,1),spoint(i,2),spoint(i,3)
|
---|
| 344 | end do
|
---|
| 345 |
|
---|
| 346 | return
|
---|
| 347 |
|
---|
| 348 | end
|
---|
| 349 |
|
---|