1a4j

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{{STRUCTURE_1a4j| PDB=1a4j | SCENE= }}
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==DIELS ALDER CATALYTIC ANTIBODY GERMLINE PRECURSOR==
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===DIELS ALDER CATALYTIC ANTIBODY GERMLINE PRECURSOR===
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<StructureSection load='1a4j' size='340' side='right' caption='[[1a4j]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
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{{ABSTRACT_PUBMED_9506942}}
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1a4j]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A4J OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1A4J FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1a4j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1a4j OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1a4j RCSB], [http://www.ebi.ac.uk/pdbsum/1a4j PDBsum]</span></td></tr>
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<table>
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== Disease ==
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[[http://www.uniprot.org/uniprot/IGKC_HUMAN IGKC_HUMAN]] Defects in IGKC are the cause of immunoglobulin kappa light chain deficiency (IGKCD) [MIM:[http://omim.org/entry/614102 614102]]. IGKCD is a disease characterized by the complete absence of immunoglobulin kappa chains.<ref>PMID:3931219</ref>
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== Function ==
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==Disease==
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== Evolutionary Conservation ==
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[[http://www.uniprot.org/uniprot/IGKC_HUMAN IGKC_HUMAN]] Defects in IGKC are the cause of immunoglobulin kappa light chain deficiency (IGKCD) [MIM:[http://omim.org/entry/614102 614102]]. IGKCD is a disease characterized by the complete absence of immunoglobulin kappa chains.<ref>PMID:3931219</ref>
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a4/1a4j_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The three-dimensional structure of an antibody (39-A11) that catalyzes a Diels-Alder reaction has been determined. The structure suggests that the antibody catalyzes this pericyclic reaction through a combination of packing and hydrogen-bonding interactions that control the relative geometries of the bound substrates and electronic distribution in the dienophile. A single somatic mutation, serine-91 of the light chain to valine, is largely responsible for the increase in affinity and catalytic activity of the affinity-matured antibody. Structural and functional studies of the germ-line precursor suggest that 39-A11 and related antibodies derive from a family of germ-line genes that have been selected throughout evolution for the ability of the encoded proteins to form a polyspecific combining site. Germ line-encoded antibodies of this type, which can rapidly evolve into high-affinity receptors for a broad range of structures, may help to expand the binding potential associated with the structural diversity of the primary antibody repertoire.
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==About this Structure==
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Immunological origins of binding and catalysis in a Diels-Alderase antibody.,Romesberg FE, Spiller B, Schultz PG, Stevens RC Science. 1998 Mar 20;279(5358):1929-33. PMID:9506942<ref>PMID:9506942</ref>
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[[1a4j]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1A4J OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<ref group="xtra">PMID:009506942</ref><references group="xtra"/><references/>
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</div>
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==See Also==
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*[[Monoclonal Antibody|Monoclonal Antibody]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Romesburg, F E.]]
[[Category: Romesburg, F E.]]

Revision as of 17:15, 29 September 2014

DIELS ALDER CATALYTIC ANTIBODY GERMLINE PRECURSOR

1a4j, resolution 2.10Å

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