Network of cmpA (red ball) and its protein partners according to STRING (https://string-db.org). In this figure: proteins cmpB, cmpC, cmcD are bicarbonate transport ATP-binding proteins, all3035 is a nitrate/nitrite transport system ATP-binding protein (EC:3.6.3.-), nrtD is nitrate transport ATP-binding protein (alr0611), narB is nitrate reductase (alr0612), alr0608 is a nitrate/nitrite binding protein NrtA, 17129955 is nitrate transport permease protein NrtB (alr0609), 17132428 is nrtA nitrate-binding protein (all3333) and 17132430 is ABC-type nitrate transport permease protein NrtB (all3335).