Top cofit genes for b3365 from Escherichia coli BW25113
nirB: nitrite reductase, large subunit, NAD(P)H-binding (NCBI)
SEED: Nitrite reductase [NAD(P)H] large subunit (EC 1.7.1.4)
KEGG: nitrite reductase (NAD(P)H) large subunit
Or look for negative cofitness