>3nbzF (F:) observed residues (from ATOM records) qvqfklvlvgdggtgkttfvkrhltgefekkyvatlgvevhplvfhtnrgpikfnvwdta glekfgglrdgyyiqaqcaiimfdvtsrvtyknvpnwhrdlvrvcenipivlcgnkvdik drkvkaksivfhrkknlqyydisaksnynfekpflwlarkligdpnlefvamp