>3f6rB (B:) observed residues (from ATOM records)
skvlivfgsstgntesiaqkleeliaagghevtllnaadasaenladgydavlfgcsawg
medlemqddflslfeefdriglagrkvaafasgdqeyehfcgavpaieerakelgatiia
eglkmegdasndpeavasfaedvlkql