>2r09A (A:) observed residues (from ATOM records)
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tvigdylgerddfnikvlqafvelhefadlnlvqalrqflwsfrlpgeaqkidrmmeafa
sryclcnpgvfqstdtcyvlsfaiimlntslhnhnvrdkptaerfitmnrgineggdlpe
ellrnlyesiknepfkipeddgndltytffnpdregwllklggrvktwkrrwfiltdncl
yyfeyttdkeprgiiplenlsirevedprkpncfelynpshkgqvikackteadgrvveg
nhvvyrisapspeekeewmksikasisrdpfydmlatrkrria