>4zrkB (B:) observed residues (from ATOM records) pktftvrivtmdaemefncemkwkgkdlfdlvcrtlglretwffglqytikdtvawlkmd kkvldhdvskeepvtfhflakfypenaeeelvqeitqhlfflqvkkqildekvycppeas vllasyavqakygdydpsvhkrgflaqeellpkrvinlyqmtpemweeritawyaehrgr ardeaemeylkiaqdlemygvnyftirnkkgtelllgvdalglhiydpenrltpkisfpw neirnisysdkeftikpldkkidvfkfnssklrvnklilqlcignhdlfmrrr