>7CNV_1|Chains A, B, C, D, E, F|Nitrogen-fixing NifU domain protein|Methanothrix thermoacetophila (2224) MIQQTGYSKKVMEHFMNPRNVGVIDDPDGYGKVGNPVCGDLMEIFIKVGDEKIEDIKFRTFGCGAAIATSSMITEMARGKSLEEAMRITRNDVADALDGLPPQKMCCSNLAADALHAAINDYLSKKQKHLEH