Sequence Cluster id id2 desc organism isHeteromeric 1 Singleton1 TCDB::Q52814 3.A.1.3.8 AapM, component of General L-amino acid porter; transports basic and acidic amino acids preferentially, but also transports aliphatic amino acids (catalyzes both uptake and efflux) Rhizobium leguminosarum (biovar viciae) heteromer