8j4c

YeeE(TsuA)-YeeD(TsuB) complex for thiosulfate uptake

spinqualitylabelsall models 8j4c, resolution 3.34Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8j4c is a 2 chain structure with sequence from Corynebacterium pollutisoli and Spirochaeta thermophila DSM 6578. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3.34Å Ligands: OLC, THJ Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed Uptake of thiosulfate ions as an inorganic sulfur source from the environment is important for bacterial sulfur assimilation. Recently, a selective thiosulfate uptake pathway involving a membrane protein YeeE (TsuA) in Escherichia coli was characterized. YeeE-like proteins are conserved in some bacteria, archaea, and eukaryotes. However, the precise function of YeeE, along with its potential partner protein in the thiosulfate ion uptake pathway, remained unclear. Here, we assessed selective thiosulfate transport via Spirochaeta thermophila YeeE in vitro and characterized E. coli YeeD (TsuB) as an adjacent and essential protein for YeeE-mediated thiosulfate uptake in vivo. We further showed that S. thermophila YeeD possesses thiosulfate decomposition activity and that a conserved cysteine in YeeD was modified to several forms in the presence of thiosulfate. Finally, the crystal structures of S. thermophila YeeE-YeeD fusion proteins at 3.34-A and 2.60-A resolutions revealed their interactions. The association was evaluated by a binding assay using purified S. thermophila YeeE and YeeD. Based on these results, a model of the sophisticated uptake of thiosulfate ions by YeeE and YeeD is proposed. YeeD is an essential partner for YeeE-mediated thiosulfate uptake in bacteria and regulates thiosulfate ion decomposition.,Ikei M, Miyazaki R, Monden K, Naito Y, Takeuchi A, Takahashi YS, Tanaka Y, Murata K, Mori T, Ichikawa M, Tsukazaki T PLoS Biol. 2024 Apr 24;22(4):e3002601. doi: 10.1371/journal.pbio.3002601. , eCollection 2024 Apr. PMID:38656967 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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