>1isiA (A:) observed residues (from ATOM records) wraegtsahlrdiflgrcaeyrallspeqrnkdctaiweafkvaldkdpcsvlpsdydlf itlsrhsiprdkslfwenshllvnsfadntrrfmplsdvlygrvadflswcrqkadsgld yqscptsedcennpvdsfwkrasiqyskdssgvihvmlngseptgaypikgffadyeipn lqkekitrieiwvmheiggpnvescgegsmkvlekrlkdmgfqyscindyrpvkllqcvd hsthpdcalk