Top cofit genes for b2662 from Escherichia coli BW25113
gabT: 4-aminobutyrate aminotransferase (NCBI)
SEED: Gamma-aminobutyrate:alpha-ketoglutarate aminotransferase (EC 2.6.1.19)
KEGG: 4-aminobutyrate aminotransferase / (S)-3-amino-2-methylpropionate transaminase
Or look for negative cofitness