>4apzB (B:) observed residues (from ATOM records)
mqikikyldetqtriskieqgdwidlraaedvtikkdefklvplgvamelpegyeahvvp
rsstyknfgviqtnsmgvidesykgdndfwffpayalrdteikkgdricqfrimkkmpav
elvevehlgnedrgglgstgtk