>1zckA (A:) observed residues (from ATOM records)
pvevtyknmrflithnptnatlnkfieelkkygvttivrvceatydttlvekegihvldw
pfgappsnqivddwlslvkikfreepgcciavhcvaglgrapvlvalalieggmkyedav
qfirqkrrgafnskqllylekyrpkmrlrf