REPL_RESIDUE ... ... END
REPL_RESIDUE RESIDUE gly ( Total Charge = 0.0 ) atoms group n n -0.41570 hn h 0.27190 group ca ct -0.02520 ha1 h1 0.06980 ha2 h1 0.06980 group c c 0.59730 o o -0.56790 end bonds n hn n ca o c c ca ca ha1 ca ha2 end imphd -c ca n hn ca +n c o end termatom n c backbone n ca c RESIDUE_END ENDReplace or add the topology for residue gly.