3uf5: Difference between revisions
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==Crystal structure of the mouse Colony-Stimulating Factor 1 (mCSF-1) cytokine== | |||
<StructureSection load='3uf5' size='340' side='right' caption='[[3uf5]], [[Resolution|resolution]] 2.80Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3uf5]] 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=3UF5 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3UF5 FirstGlance]. <br> | |||
==Disease== | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ejj|3ejj]], [[3uez|3uez]], [[3uf2|3uf2]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Csf1, Csfm ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 Mus musculus])</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=3uf5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3uf5 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3uf5 RCSB], [http://www.ebi.ac.uk/pdbsum/3uf5 PDBsum]</span></td></tr> | |||
</table> | |||
== Disease == | |||
[[http://www.uniprot.org/uniprot/CSF1_MOUSE CSF1_MOUSE]] Note=A defect in Csf1 is the cause of osteopetrosis. Osteopetrotic mice (op/op) are severely deficient in mature macrophages and osteoclasts, display failed tooth eruption, and have a restricted capacity for bone remodeling.<ref>PMID:2188141</ref> | [[http://www.uniprot.org/uniprot/CSF1_MOUSE CSF1_MOUSE]] Note=A defect in Csf1 is the cause of osteopetrosis. Osteopetrotic mice (op/op) are severely deficient in mature macrophages and osteoclasts, display failed tooth eruption, and have a restricted capacity for bone remodeling.<ref>PMID:2188141</ref> | ||
== Function == | |||
==Function== | |||
[[http://www.uniprot.org/uniprot/CSF1_MOUSE CSF1_MOUSE]] Cytokine that plays an essential role in the regulation of survival, proliferation and differentiation of hematopoietic precursor cells, especially mononuclear phagocytes, such as macrophages and monocytes. Promotes the release of proinflammatory chemokines, and thereby plays an important role in innate immunity and in inflammatory processes. Plays an important role in the regulation of osteoclast proliferation and differentiation, the regulation of bone resorption, and is required for normal bone development. Required for normal male and female fertility. Promotes reorganization of the actin cytoskeleton, regulates formation of membrane ruffles, cell adhesion and cell migration. Plays a role in lipoprotein clearance. | [[http://www.uniprot.org/uniprot/CSF1_MOUSE CSF1_MOUSE]] Cytokine that plays an essential role in the regulation of survival, proliferation and differentiation of hematopoietic precursor cells, especially mononuclear phagocytes, such as macrophages and monocytes. Promotes the release of proinflammatory chemokines, and thereby plays an important role in innate immunity and in inflammatory processes. Plays an important role in the regulation of osteoclast proliferation and differentiation, the regulation of bone resorption, and is required for normal bone development. Required for normal male and female fertility. Promotes reorganization of the actin cytoskeleton, regulates formation of membrane ruffles, cell adhesion and cell migration. Plays a role in lipoprotein clearance. | ||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Hematopoietic human colony-stimulating factor 1 (hCSF-1) is essential for innate and adaptive immunity against viral and microbial infections and cancer. The human pathogen Epstein-Barr virus secretes the lytic-cycle protein BARF1 that neutralizes hCSF-1 to achieve immunomodulation. Here we show that BARF1 binds the dimer interface of hCSF-1 with picomolar affinity, away from the cognate receptor-binding site, to establish a long-lived complex featuring three hCSF-1 at the periphery of the BARF1 toroid. BARF1 locks dimeric hCSF-1 into an inactive conformation, rendering it unable to signal via its cognate receptor on human monocytes. This reveals a new functional role for hCSF-1 cooperativity in signaling. We propose a new viral strategy paradigm featuring an allosteric decoy receptor of the competitive type, which couples efficient sequestration and inactivation of the host growth factor to abrogate cooperative assembly of the cognate signaling complex. | |||
Allosteric competitive inactivation of hematopoietic CSF-1 signaling by the viral decoy receptor BARF1.,Elegheert J, Bracke N, Pouliot P, Gutsche I, Shkumatov AV, Tarbouriech N, Verstraete K, Bekaert A, Burmeister WP, Svergun DI, Lambrecht BN, Vergauwen B, Savvides SN Nat Struct Mol Biol. 2012 Sep;19(9):938-47. doi: 10.1038/nsmb.2367. Epub 2012 Aug, 19. PMID:22902366<ref>PMID:22902366</ref> | |||
== | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Bekaert, A | [[Category: Bekaert, A]] | ||
[[Category: Bracke, N | [[Category: Bracke, N]] | ||
[[Category: Elegheert, J | [[Category: Elegheert, J]] | ||
[[Category: Savvides, S N | [[Category: Savvides, S N]] | ||
[[Category: Cytokine]] | [[Category: Cytokine]] | ||
[[Category: Four-helix bundle]] | [[Category: Four-helix bundle]] | ||
[[Category: Hematopoietic cytokine]] | [[Category: Hematopoietic cytokine]] | ||
[[Category: Rtkiii]] | [[Category: Rtkiii]] | ||