>2exlB (B:) observed residues (from ATOM records) sekfafqaevnrmmkliinslyknkeiflrelisnasdaldkirlisltdenalagneel tvkikcdkeknllhvtdtgvgmtreelvknlgtistseligqfgvgfysaflvadkvivt skhnndtqhiwesdsnefsviadprgntlgrgttitlvlkeeasdyleldtiknlvkkys qfinfpiyvwssktktvwdwelmn