>4zo4A (A:) observed residues (from ATOM records) amknaffvtasiacgkstfieianslgfksisadkiahkildenalelekifspfslknl lkkekkidrkilgeivfnnkeakkilenfthpkirakileqmqildkenkaffveiplff esgayenlgkviviytpkelslkrimqrdklsleaakarldsqidieeklkkadfiiknt nsyadfrqecvkviqeiskgnm