Top cofit genes for b3114 from Escherichia coli BW25113
tdcE: pyruvate formate-lyase 4/2-ketobutyrate formate-lyase (NCBI)
SEED: 2-ketobutyrate formate-lyase (EC 2.3.1.-) / Pyruvate formate-lyase (EC 2.3.1.54)
KEGG: formate C-acetyltransferase
Or look for negative cofitness