|
|
| Line 1: |
Line 1: |
| | | | |
| | ==Crystal structure of bovine antibody BLV5B8 with ultralong CDR H3== | | ==Crystal structure of bovine antibody BLV5B8 with ultralong CDR H3== |
| - | <StructureSection load='4k3e' size='340' side='right' caption='[[4k3e]], [[Resolution|resolution]] 2.20Å' scene=''> | + | <StructureSection load='4k3e' size='340' side='right'caption='[[4k3e]], [[Resolution|resolution]] 2.20Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[4k3e]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Bovin Bovin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4K3E OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4K3E FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[4k3e]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4K3E OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4K3E FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=TLA:L(+)-TARTARIC+ACID'>TLA</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene>, <scene name='pdbligand=TLA:L(+)-TARTARIC+ACID'>TLA</scene></td></tr> |
| - | <tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=PCA:PYROGLUTAMIC+ACID'>PCA</scene></td></tr>
| + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4k3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4k3e OCA], [https://pdbe.org/4k3e PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4k3e RCSB], [https://www.ebi.ac.uk/pdbsum/4k3e PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4k3e ProSAT]</span></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4k3d|4k3d]]</td></tr>
| + | |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">IGH ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN]), IGL, IGL@ ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</td></tr>
| + | |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4k3e FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4k3e OCA], [http://pdbe.org/4k3e PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4k3e RCSB], [http://www.ebi.ac.uk/pdbsum/4k3e PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4k3e ProSAT]</span></td></tr> | + | |
| | </table> | | </table> |
| | + | == Function == |
| | + | [https://www.uniprot.org/uniprot/Q3T101_BOVIN Q3T101_BOVIN] |
| | <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| | == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
| Line 21: |
Line 20: |
| | | | |
| | ==See Also== | | ==See Also== |
| - | *[[3D structures of antibody|3D structures of antibody]] | + | *[[Antibody 3D structures|Antibody 3D structures]] |
| | + | *[[Sandbox 20009|Sandbox 20009]] |
| | + | *[[3D structures of non-human antibody|3D structures of non-human antibody]] |
| | == References == | | == References == |
| | <references/> | | <references/> |
| | __TOC__ | | __TOC__ |
| | </StructureSection> | | </StructureSection> |
| - | [[Category: Bovin]] | + | [[Category: Bos taurus]] |
| - | [[Category: Ekiert, D C]] | + | [[Category: Large Structures]] |
| - | [[Category: Wang, F]] | + | [[Category: Ekiert DC]] |
| - | [[Category: Wilson, I A]] | + | [[Category: Wang F]] |
| - | [[Category: Cystine knot]] | + | [[Category: Wilson IA]] |
| - | [[Category: Immune recognition]]
| + | |
| - | [[Category: Immune system]]
| + | |
| - | [[Category: Immunoglobulin]]
| + | |
| Structural highlights
Function
Q3T101_BOVIN
Publication Abstract from PubMed
Some species mount a robust antibody response despite having limited genome-encoded combinatorial diversity potential. Cows are unusual in having exceptionally long CDR H3 loops and few V regions, but the mechanism for creating diversity is not understood. Deep sequencing reveals that ultralong CDR H3s contain a remarkable complexity of cysteines, suggesting that disulfide-bonded minidomains may arise during repertoire development. Indeed, crystal structures of two cow antibodies reveal that these CDR H3s form a very unusual architecture composed of a beta strand "stalk" that supports a structurally diverse, disulfide-bonded "knob" domain. Diversity arises from somatic hypermutation of an ultralong DH with a severe codon bias toward mutation to cysteine. These unusual antibodies can be elicited to recognize defined antigens through the knob domain. Thus, the bovine immune system produces an antibody repertoire composed of ultralong CDR H3s that fold into a diversity of minidomains generated through combinations of somatically generated disulfides.
Reshaping antibody diversity.,Wang F, Ekiert DC, Ahmad I, Yu W, Zhang Y, Bazirgan O, Torkamani A, Raudsepp T, Mwangi W, Criscitiello MF, Wilson IA, Schultz PG, Smider VV Cell. 2013 Jun 6;153(6):1379-93. doi: 10.1016/j.cell.2013.04.049. PMID:23746848[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Wang F, Ekiert DC, Ahmad I, Yu W, Zhang Y, Bazirgan O, Torkamani A, Raudsepp T, Mwangi W, Criscitiello MF, Wilson IA, Schultz PG, Smider VV. Reshaping antibody diversity. Cell. 2013 Jun 6;153(6):1379-93. doi: 10.1016/j.cell.2013.04.049. PMID:23746848 doi:10.1016/j.cell.2013.04.049
|
