Sequence Cluster id id2 desc organism isHeteromeric 1 Cluster1 TCDB::P21629 3.A.1.4.8 High-affinity branched-chain amino acid transport ATP-binding protein BraF, component of Branched chain amino acid uptake transporter. Transports alanine Pseudomonas aeruginosa (strain ATCC 15692 / PAO1 / 1C / PRS 101 / LMG 12228) heteromer 2 Cluster1 TCDB::Q55164 3.A.1.4.2 NatA aka BRAF aka SLR0467, component of Leucine/proline/alanine/serine/glycine (and possibly histidine) porter, NatABCDE heteromer 3 Cluster1 TCDB::Q7A2H0 3.A.1.4.6 NatA, component of The neutral amino acid permease, N-1 (transports pro, phe, leu, gly, ala, ser, gln and his, but gln and his are not transported via NatB) heteromer