3vg0: Difference between revisions
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[[ | ==Antibody Fab fragment== | ||
<StructureSection load='3vg0' size='340' side='right' caption='[[3vg0]], [[Resolution|resolution]] 2.27Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3vg0]] is a 2 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=3VG0 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3VG0 FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3v6o|3v6o]]</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=3vg0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3vg0 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3vg0 RCSB], [http://www.ebi.ac.uk/pdbsum/3vg0 PDBsum]</span></td></tr> | |||
</table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Leptin regulates energy homeostasis, fertility, and the immune system, making it an important drug target. However, due to a complete lack of structural data for the obesity receptor (ObR), leptin's mechanism of receptor activation remains poorly understood. We have crystallized the Fab fragment of a leptin-blocking monoclonal antibody (9F8), both in its uncomplexed state and bound to the leptin-binding domain (LBD) of human ObR. We describe the structure of the LBD-9F8 Fab complex and the conformational changes in 9F8 associated with LBD binding. A molecular model of the putative leptin-LBD complex reveals that 9F8 Fab blocks leptin binding through only a small (10%) overlap in their binding sites, and that leptin binding is likely to involve an induced fit mechanism. This crystal structure of the leptin-binding domain of the obesity receptor will facilitate the design of therapeutics to modulate leptin signaling. | |||
Structure of the human obesity receptor leptin-binding domain reveals the mechanism of leptin antagonism by a monoclonal antibody.,Carpenter B, Hemsworth GR, Wu Z, Maamra M, Strasburger CJ, Ross RJ, Artymiuk PJ Structure. 2012 Mar 7;20(3):487-97. PMID:22405007<ref>PMID:22405007</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Monoclonal Antibody|Monoclonal Antibody]] | *[[Monoclonal Antibody|Monoclonal Antibody]] | ||
== References == | |||
== | <references/> | ||
< | __TOC__ | ||
</StructureSection> | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Artymiuk, P J | [[Category: Artymiuk, P J]] | ||
[[Category: Carpenter, B | [[Category: Carpenter, B]] | ||
[[Category: Hemsworth, G R | [[Category: Hemsworth, G R]] | ||
[[Category: Ross, R J | [[Category: Ross, R J]] | ||
[[Category: Antibody fab fragment]] | [[Category: Antibody fab fragment]] | ||
[[Category: Fab fragment]] | [[Category: Fab fragment]] | ||
Revision as of 12:34, 4 January 2015
Antibody Fab fragmentAntibody Fab fragment
Structural highlights
Publication Abstract from PubMedLeptin regulates energy homeostasis, fertility, and the immune system, making it an important drug target. However, due to a complete lack of structural data for the obesity receptor (ObR), leptin's mechanism of receptor activation remains poorly understood. We have crystallized the Fab fragment of a leptin-blocking monoclonal antibody (9F8), both in its uncomplexed state and bound to the leptin-binding domain (LBD) of human ObR. We describe the structure of the LBD-9F8 Fab complex and the conformational changes in 9F8 associated with LBD binding. A molecular model of the putative leptin-LBD complex reveals that 9F8 Fab blocks leptin binding through only a small (10%) overlap in their binding sites, and that leptin binding is likely to involve an induced fit mechanism. This crystal structure of the leptin-binding domain of the obesity receptor will facilitate the design of therapeutics to modulate leptin signaling. Structure of the human obesity receptor leptin-binding domain reveals the mechanism of leptin antagonism by a monoclonal antibody.,Carpenter B, Hemsworth GR, Wu Z, Maamra M, Strasburger CJ, Ross RJ, Artymiuk PJ Structure. 2012 Mar 7;20(3):487-97. PMID:22405007[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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