share/top/charmm27.ff/aminoacids.r2b

   1 ; rtp residue to rtp building block table
   2 ;GMX   Force-field
   3 HISD    HSD
   4 HIS1    HSD
   5 HISE    HSE
   6 HISH    HSP
   7 LYSN    LSN
   8 ASPH    ASPP
   9 GLUH    GLUP
  10 HEM     HEME