>3sr5X (X:) observed residues (from ATOM records) tlsilvahdlqrvigfenqlpwhlpndlkhvkklstghtlvmgrktfesigkplpnrrnv vltsdtsfnvegvdvihsiediyqlpghvfifggqtlfeemidkvddmyitviegkfrgd tffppytfedwevassvegkldekntiphtflhlirk