>2heyR (R:) observed residues (from ATOM records) lhcvgdtypsndrcchecrpgngmvsrcsrsqntvcrpcgpgfyndvvsskpckpctwcn lrsgserkqlctatqdtvcrcragtqpldsykpgvdcapcppghfspgdnqackpwtnct lagkhtlqpasnssdaic