Top cofit genes for Rru_A2251 from Rhodospirillum rubrum S1H
extracellular solute-binding protein, family 3 (NCBI)
SEED: Lysine-arginine-ornithine-binding periplasmic protein precursor (TC 3.A.1.3.1)
KEGG: polar amino acid transport system substrate-binding protein
Or look for negative cofitness