>4a4bC (C:) observed residues (from ATOM records) alkrihkelndlardppaqcsagpvgddmfhwqatimgpndspyqggvffltihfptdyp fkppkvafttriyhpninsngsicldilrsqwspaltiskvllsicsllcdpnpddplvp eiariyktdrekynriarewtqkyam