>sp|D5EBS7|RIBL_METMS FAD synthase OS=Methanohalophilus mahii GN=ribL MTRILATGTFDILHPGHLYYLEQARKYGNELYVLVARDSTIEHKPKPIVPEKQRLEMVKA LRVVDHALLGSEEDMFKPLKEVQPDIIVLGHDQVFDEKELEDKLQKRGFNTKVVRLGKPH QCTLCSSGRIIKRILERKRTEL