1f11

F124 FAB FRAGMENT FROM A MONOCLONAL ANTI-PRES2 ANTIBODY

spinqualitylabelsall models 1f11, resolution 3.00Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 1f11 is a 4 chain structure with sequence from Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 3Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function KV3AD_MOUSE IGKC_MOUSE Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMed The crystal structure of the Fab fragment from the monoclonal anti-preS2 antibody F124 (IgG1,kappa) has been solved by molecular replacement and refined at 3.0 A resolution. The Fab crystallizes with two independent molecules in the asymmetric unit. F124 recognizes an epitope contained within the preS2 segment between residues 120 and 132 of the surface antigen of hepatitis B virus. The antibody shows a high affinity for the glycan N-linked to Asn123, but it also cross-reacts with the non-glycosylated peptide fragment 120-132. Although crystallization was performed in the presence of an eightfold excess of the cross-reactive peptide, no evidence for the ligand was found in the antigen-binding site, which is close to a neighbouring molecule in the crystal lattice. The antigen-binding site has a groove-like topology which is modulated with pocket-like cavities. It is characterized by a large number of tyrosine and aspartate residues. The importance of germ-line mutations at the binding site is discussed. Structure of the Fab fragment from F124, a monoclonal antibody specific for hepatitis B surface antigen.,Saul FA, Vulliez-Le Normand B, Passafiume M, Riottot MM, Bentley GA Acta Crystallogr D Biol Crystallogr. 2000 Aug;56(Pt 8):945-51. PMID:10944330 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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