>2a72B (B:) SEQRES residues smkepsqqrvkrwgfgmdealkdpvgreqflkflesefssenlrfwlavedlkkrpikev psrvqeiwqeflapgapsainldsksydktthnvkepgrytfedaqehiyklmksdsypr firssayqellqakkksgnsmdrrts