Top cofit genes for Rru_A3536 from Rhodospirillum rubrum S1H
Nitroreductase (NCBI)
SEED: Cobalamin biosynthesis protein BluB @ 5,6-dimethylbenzimidazole synthase, flavin destructase family
KEGG: 5,6-dimethylbenzimidazole synthase
Or look for negative cofitness