2ihl | pdb_00002ihl

LYSOZYME (E.C.3.2.1.17) (JAPANESE QUAIL)

spinqualitylabelsall models 2ihl, resolution 1.40Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 2ihl is a 1 chain structure with sequence from Coturnix japonica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.4Å Ligands: NA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function LYSC_COTJA Lysozymes have primarily a bacteriolytic function; those in tissues and body fluids are associated with the monocyte-macrophage system and enhance the activity of immunoagents. 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 Although antibodies are highly specific, cross-reactions are frequently observed. To understand the molecular basis of this phenomenon, we studied the anti-hen egg lysozyme (HEL) monoclonal antibody (mAb) D11.15, which cross-reacts with several avian lysozymes, in some cases with a higher affinity (heteroclitic binding) than for HEL. We have determined the crystal structure of the Fv fragment of D11.15 complexed with pheasant egg lysozyme (PHL). In addition, we have determined the structure of PHL, Guinea fowl egg lysozyme, and Japanese quail egg lysozyme. Differences in the affinity of D11.15 for the lysozymes appear to result from sequence substitutions in these antigens at the interface with the antibody. More generally, cross-reactivity is seen to require a stereochemically permissive environment for the variant antigen residues at the antibody-antigen interface. Three-dimensional structure of a heteroclitic antigen-antibody cross-reaction complex.,Chitarra V, Alzari PM, Bentley GA, Bhat TN, Eisele JL, Houdusse A, Lescar J, Souchon H, Poljak RJ Proc Natl Acad Sci U S A. 1993 Aug 15;90(16):7711-5. PMID:8356074 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also Lysozyme 3D structures

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