Top cofit genes for b0399 from Escherichia coli BW25113
phoB: DNA-binding response regulator in two-component regulatory system with PhoR (or CreC) (NCBI)
SEED: Phosphate regulon transcriptional regulatory protein PhoB (SphR)
KEGG: two-component system, OmpR family, phosphate regulon response regulator PhoB
Or look for negative cofitness