>3wwkB (B:) observed residues (from ATOM records) dcpsgwssyeghcykpfnepknwadaerfcklqpkhshlvsfqsaeeadfvvkltrprlk anlvwmglsniwhgcnwqwsdgarlnykdwqeqseclafrgvhtewlnmdcsstcsfvck fka