>2qz3B (B:) observed residues (from ATOM records)
stdywqnwtdgggivnavngsggnysvnwsntgnfvvgkgwttgspfrtinynagvwapn
gngyltlygwtrsplieyyvvdswgtyrptgtykgtvksdggtydiytttrynapsidgd
rttftqywsvrqskrptgsnatitfsnhvnawkshgmnlgsnwayqvmatagyqssgssn
vtvw