>2y5bB (B:) observed residues (from ATOM records) mqifvktltgktitlevepsdtienvkakiqdkegippdqqrlifagkqledgrtlsdyn iqkestlhlvlrlhmqifvktltgktitlevepsdtienvkakiqdkegippdqqrlifa gkqledgrtlsdyniqkestlhlvlrlrgg