Trehalose-binding lipoprotein LpqY

UniProtKB accession:  G7CES0

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Part of the ABC transporter complex LpqY-SugA-SugB-SugC, which is highly specific for uptake of trehalose. Involved in the recycling of extracellular trehalose released from trehalose-containing molecules synthesized by M.thermoresistibile. Trehalose uptake is essential for virulence (By similarity). Binds deuterated trehalose with similar high affinity to trehalose, trehalose analogs including galactotrehalose, 4-azido-4-deoxy-trehalose, 6-azido-6-deoxy-trehalose, 3-azido-3-deoxy-trehalose and mannotrehalose in the order of decreasing affinity, respectively, and 2-azido-2-deoxy-trehalose and kojibiose (alpha1,2-glycosidic bond) with very low affinity. Does not recognize single glucose, 6-amino-6-deoxy-trehalose, trehalose-6-phosphate, nigerose (alpha1,3-glycosidic bond), maltose (alpha1,4-glycosidic bond), isomaltose (alpha1,6-glycosidic bond) or glycerophosphocholine. Decreased recognition of alpha,beta-trehalose and almost no recognition of beta,beta-trehalose. Substrate specificity indicates a strict requirement for an alpha1,1-linked disaccharide (PubMed:33476646).