Homologs of MMP_RS02390 from Methanococcus maripaludis S2
NifB/NifX family molybdenum-iron cluster-binding protein
SEED: Nitrogenase related protein
5 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser