Sequence Cluster id id2 desc organism isHeteromeric 1 Cluster1 TCDB::P29822 3.A.1.1.4 LacE, component of Lactose porter Agrobacterium radiobacter heteromer 2 Cluster1 reanno::Smeli:SM_b21652 SM_b21652 ABC transporter for Lactose, periplasmic substrate-binding component Sinorhizobium meliloti 1021 heteromer