>4bk6B (B:) SEQRES residues gvfncetettsvipaarlfkafildgdnlfpkvapqaissveniegnggpgtikkisfpe gfpfkyvkdrvdevdhtnfkynysvieggpigdtlekisneikivatpdggsilkisnky htkgdhevkaeqvkaskemgetllravesyllahsdayn