Homologs of Rru_A0742 from Rhodospirillum rubrum S1H
Ubiquinone biosynthesis O-methyltransferase (NCBI)
KEGG: 3-demethylubiquinone-9 3-methyltransferase
203 hits from BLASTp (E < 0.01)
Or try PaperBLAST, fast.genomics, the ENIGMA genome browser, or the comparative fitness browser