NAME cro_gly
TYPES BRANCH_UPPER_TERMINUS_VARIANT

BEGIN_SELECTOR
PROPERTY PROTEIN
AA GLY GLC
NOT VARIANT_TYPE BRANCH_UPPER_TERMINUS_VARIANT
END_SELECTOR

BEGIN_CASE ## GLY ##################################################

SET_IO_STRING GLC G
SET_INTERCHANGEABILITY_GROUP GLC

DELETE_ATOM H

ADD_CONNECT N ICOOR   180.000000   60.850040    1.010000   N     CA  LOWER

DELETE_PROPERTY CANONICAL_AA
ADD_PROPERTY CHARGED
ADD_PROPERTY BRANCH_LOWER_TERMINUS

END_CASE