Fixed bug where CONECT records were being parsed incorrectly

wrappers/python/simtk/openmm/app/internal/pdbstructure.py

@@ -165,8 +165,8 @@ class PdbStructure(object):
             elif (pdb_line.find("CRYST1") == 0):
                 self._unit_cell_dimensions = (float(pdb_line[6:15]), float(pdb_line[15:24]), float(pdb_line[24:33]))*unit.angstroms
             elif (pdb_line.find("CONECT") == 0):
-                atoms = [int(pdb_line[7:12])]
-                for pos in (12,17,22,27):
+                atoms = [int(pdb_line[6:11])]
+                for pos in (11,16,21,26):
                     try:
                         atoms.append(int(pdb_line[pos:pos+5]))
                     except: