double precision a0thet,athet,bthet,polthet,gthet,theta0,sig0,
     &  sigc0,dsc,dsc_inv,bsc,censc,gaussc,dsc0
      integer nlob
C Parameters of the virtual-bond-angle probability distribution
      common /thetas/ a0thet(-ntyp:ntyp),athet(2,-ntyp:ntyp,-1:1,-1:1),
     &  bthet(2,-ntyp:ntyp,-1:1,-1:1),polthet(0:3,-ntyp:ntyp),
     & gthet(3,-ntyp:ntyp),theta0(-ntyp:ntyp),sig0(-ntyp:ntyp),
     &  sigc0(-ntyp:ntyp)
C Parameters of the side-chain probability distribution
      common /sclocal/ dsc(ntyp1),dsc_inv(ntyp1),bsc(maxlob,ntyp),
     &  censc(3,maxlob,-ntyp:ntyp),gaussc(3,3,maxlob,-ntyp:ntyp),
     &dsc0(ntyp1),
     &    nlob(ntyp1)
C Parameters of ab initio-derived potential of virtual-bond-angle bending
      integer nthetyp,ntheterm,ntheterm2,ntheterm3,nsingle,ndouble,
     & ithetyp(-ntyp1:ntyp1),nntheterm
      common /theta_abinitio/ aa0thet(-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & aathet(maxtheterm,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & bbthet(maxsingle,maxtheterm2,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & ccthet(maxsingle,maxtheterm2,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & ddthet(maxsingle,maxtheterm2,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & eethet(maxsingle,maxtheterm2,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,-maxthetyp1:maxthetyp1,2),
     & ffthet(maxdouble,maxdouble,maxtheterm3,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1, -maxthetyp1:maxthetyp1,2),
     & ggthet(maxdouble,maxdouble,maxtheterm3,-maxthetyp1:maxthetyp1,
     &-maxthetyp1:maxthetyp1,  -maxthetyp1:maxthetyp1,2),
     &  ithetyp,nthetyp,ntheterm,ntheterm2,ntheterm3,nsingle,
     &  ndouble,nntheterm

        double precision aa0thet,aathet,bbthet,ccthet,ddthet,eethet,
     &  ffthet,
     &  ggthet
C Virtual-bond lenghts
      double precision vbl,vblinv,vblinv2,vbl_cis,vbl0,vbld_inv
      integer loc_start,loc_end,ithet_start,ithet_end,iphi_start,
     & iphi_end,iphid_start,iphid_end,ibond_start,ibond_end,
     & ibondp_start,ibondp_end,ivec_start,ivec_end,iset_start,iset_end,
     & iturn3_start,iturn3_end,iturn4_start,iturn4_end,iint_start,
     & iint_end,iphi1_start,iphi1_end,itau_start,itau_end
      common /peptbond/ vbl,vblinv,vblinv2,vbl_cis,vbl0
      common /indices/ loc_start,loc_end,ithet_start,ithet_end,
     & iphi_start,iphi_end,iphid_start,iphid_end,ibond_start,ibond_end,
     & ibondp_start,ibondp_end,ivec_start,ivec_end,iset_start,iset_end,
     & iturn3_start,iturn3_end,iturn4_start,iturn4_end,iint_start,
     & iint_end,iphi1_start,iphi1_end,itau_start,itau_end
C Inverses of the actual virtual bond lengths
      common /invlen/ vbld_inv(maxres2)