7jwg

OspA-Fab 221-7 complex structureOspA-Fab 221-7 complex structure

Structural highlights 7jwg is a 6 chain structure with sequence from Borreliella burgdorferi B31 and Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3.05Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function OSPA_BORBU Publication Abstract from PubMed Disrupting transmission of Borrelia burgdorferi sensu lato complex (B. burgdorferi) from infected ticks to humans is one strategy to prevent the significant morbidity from Lyme disease. We have previously shown that an anti-OspA human mAb, 2217, prevents transmission of B. burgdorferi from infected ticks in animal models. Maintenance of a protective plasma concentration of a human mAb for tick season presents a significant challenge for a preexposure prophylaxis strategy. Here, we describe the optimization of mAb 2217 by amino acid substitutions (2217LS: M428L and N434S) in the Fc domain. The LS mutation led to a 2-fold increase in half-life in cynomolgus monkeys. In a rhesus macaque model, 2217LS protected animals from tick transmission of spirochetes at a dose of 3 mg/kg. Crystallographic analysis of Fab in complex with OspA revealed that 2217 bound an epitope that was highly conserved among the B. burgdorferi, B. garinii, and B. afzelii species. Unlike most vaccines that may require boosters to achieve protection, our work supports the development of 2217LS as an effective preexposure prophylaxis in Lyme-endemic regions, with a single dose at the beginning of tick season offering immediate protection that remains for the duration of exposure risk. Blocking Borrelia burgdorferi transmission from infected ticks to nonhuman primates with a human monoclonal antibody.,Schiller ZA, Rudolph MJ, Toomey JR, Ejemel M, LaRochelle A, Davis SA, Lambert HS, Kern A, Tardo AC, Souders CA, Peterson E, Cannon RD, Ganesa C, Fazio F, Mantis NJ, Cavacini LA, Sullivan-Bolyai J, Hu LT, Embers ME, Klempner MS, Wang Y J Clin Invest. 2021 Jun 1;131(11):e144843. doi: 10.1172/JCI144843. PMID:33914704 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Monoclonal Antibodies 3D structures Outer surface protein

spinqualitylabelsall models 7jwg, resolution 3.05Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image