6shu | pdb_00006shu

Borrelia burgdorferi BmpD nucleoside binding protein bound to adenosine

spinqualitylabelsall models 6shu, resolution 1.43Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6shu is a 1 chain structure with sequence from Borreliella burgdorferi JD1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.4300287Å Ligands: ADN, CL, NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function BMPD_BORBU Binds adenosine and inosine but not guanosine, xanthosine or ribose (PubMed:31988175). May be part of an ABC-type nucleoside uptake system involved in the purine salvage pathway (Probable) (PubMed:31988175). Other probable members of the ABC transporter system are substrate binding proteins BmpB, BmpA and BmpC (BB_0382, BB_0383 and BB_0384 respectively), ATP transporter RbsA and 2 permeases (BB_0677, BB_0678 and BB_0679 respectively) (Probable) (PubMed:31988175). Publication Abstract from PubMed Borrelia burgdorferi sensu lato (sl), the causative agent of the tick-borne Lyme borreliosis (LB), has a limited metabolic capacity and needs to acquire nutrients, such as amino acids, fatty acids, and nucleic acids, from the host environment. Using X-ray crystallography, liquid chromatography-mass spectrometry, microscale thermophoresis, and cellular localization studies, we show that Basic membrane protein D (BmpD) is a periplasmic substrate-binding protein of an ABC transporter system binding to purine nucleosides. Nucleosides are essential for bacterial survival in the host organism and these studies suggest a key role for BmpD in the purine salvage pathway of B. burgdorferi sl. As B. burgdorferi sl lacks the enzymes required for de novo purine synthesis, BmpD may play a vital role in ensuring access to the purines needed for sustaining an infection in the host. Further, we show that although human LB patients develop anti-BmpD antibodies, immunization of mice with BmpD does not confer protection against B. burgdorferi sl infection. Structural and biomolecular analyses of Borrelia burgdorferi BmpD reveal a substrate-binding protein of an ABC-type nucleoside transporter family.,Cuellar J, Astrand M, Elovaara H, Pietikainen A, Siren S, Liljeblad A, Guedez G, Salminen TA, Hytonen J Infect Immun. 2020 Jan 27. pii: IAI.00962-19. doi: 10.1128/IAI.00962-19. PMID:31988175 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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