>4bk6A (A:) SEQRES residues gvfncetettsvipaarlfkafildgdnlfpkvapqaissveniegnggpgtikkisfpe gfpfkyvkdrvdevdhtnfkynysvieggpigdtlekisneikivatpdggsilkisnky htkgdhevkaeqvkaskemgetllravesyllahsdayn