Top cofit genes for b2519 from Escherichia coli BW25113
pbpC: fused transglycosylase/transpeptidase (NCBI)
SEED: Penicillin-insensitive transglycosylase (EC 2.4.2.-) & transpeptidase PBP-1C
KEGG: penicillin-binding protein 1C
Or look for negative cofitness