KEGG Orthology (KO) [BR:soz00001] 09180 Brite Hierarchies 09183 Protein families: signaling and cellular processes 02000 Transporters [BR:soz02000] Spy49_1141c hypothetical protein K16788 niaX; niacin transporter Transporters [BR:soz02000] Other transporters Electrochemical potential-driven transporters [TC:2] Spy49_1141c hypothetical protein K16788 niaX; niacin transporter