Sequence Cluster id id2 desc organism isHeteromeric 1 Singleton1 CharProtDB::CH_011913 GB|AAB17887.1 glutamate/glutamine/aspartate/asparagine transport system permease protein BztB Rhodobacter capsulatus heteromer 1 Singleton1 TCDB::Q52664 3.A.1.3.7 BztB, component of Glutamate/glutamine/aspartate/asparagine porter Rhodobacter capsulatus (Rhodopseudomonas capsulata) heteromer