>2yd4A (A:) observed residues (from ATOM records)
esppvfikkpvdqigvsggvasfvcqatgdpkprvtwnkkgkkvnsqrfetiefdesaga
vlriqplrtprdeniyecvaqnphgevtvhakltvlredqlppgfpnidmgpqlkvvert
rtatmlcaasgnpdpeitwfkdflpvdpstsngrikqlrsgglqiesseetdqgkyecva
snsagvrysspanlyvrvgtkhh