Homologs of Rru_A2440 from Rhodospirillum rubrum S1H
NADH:ubiquinone oxidoreductase 17.2 kD subunit (NCBI)
SEED: NADH:ubiquinone oxidoreductase 17.2 kD subunit
KEGG: NADH dehydrogenase
17 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser