1fvb | pdb_00001fvb

MODEL-BUILDING STUDY OF THE COMBINING SITES OF TWO ANTIBODIES TO ALPHA(1(RIGHT ARROW)6)DEXTRAN

spinqualitylabelsall models 1fvb Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights For a guided tour on the structure components use FirstGlance. Resources: FirstGlance, PDBsum Publication Abstract from PubMed Models of the Fv portion (containing the variable regions of the heavy and light chains) of two monoclonal anti-alpha (1----6)dextran antibodies, W3129 and 19.1.2, were constructed from amino acid sequences and the known three-dimensional structures of the Fv portions of McPC603 and J539. The modeled combining site of W3129 has a protrusion on one side, formed by the long complementarity-determining region 1 of the light chain and the long complementarity-determining region 3 of the heavy chain, and has a cavity accommodating a glucose moiety. The model of the 19.1.2 site is basically flat with a shallow groove that can accommodate several internal glucose units. These results support the earlier conclusions, from ligand binding data, that W3129 has a cavity-type site, involving the terminal nonreducing glucose residue (endbinder), whereas 19.1.2 has a groove-type site. Model-building study of the combining sites of two antibodies to alpha (1----6)dextran.,Padlan EA, Kabat EA Proc Natl Acad Sci U S A. 1988 Sep;85(18):6885-9. PMID:2457920 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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