3n52: Difference between revisions

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[[Image:3n52.jpg|left|200px]]


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==crystal Structure analysis of MIP2==
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<StructureSection load='3n52' size='340' side='right'caption='[[3n52]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3n52]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3N52 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3N52 FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.9&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3n52 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3n52 OCA], [https://pdbe.org/3n52 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3n52 RCSB], [https://www.ebi.ac.uk/pdbsum/3n52 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3n52 ProSAT]</span></td></tr>
{{STRUCTURE_3n52|  PDB=3n52  |  SCENE=  }}
</table>
== Function ==
[https://www.uniprot.org/uniprot/CXCL2_MOUSE CXCL2_MOUSE] Chemotactic for human polymorphonuclear leukocytes but does not induce chemokinesis or an oxidative burst.
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== Publication Abstract from PubMed ==
MIP-2/CXCL2 is a murine chemokine related to human chemokines that possesses the Glu-Leu-Arg (ELR) activation motif and activates CXCR2 for neutrophil chemotaxis. We determined the structure of MIP-2 to 1.9 A resolution and created a model with its murine receptor CXCR2 based on the coordinates of human CXCR4. Chemokine-induced migration of cells through specific G-protein coupled receptors is regulated by glycosaminoglycans (GAGs) that oligomerize chemokines. MIP-2 GAG-binding residues were identified that interact with heparin disaccharide I-S by NMR spectroscopy. A model GAG/MIP-2/CXCR2 complex that supports a 2:2 complex between chemokine and receptor was created. Mutants of these disaccharide-binding residues were made and tested for heparin binding, in vitro neutrophil chemotaxis, and in vivo neutrophil recruitment to the mouse peritoneum and lung. The mutants have a 10-fold decrease in neutrophil chemotaxis in vitro. There is no difference in neutrophil recruitment between wild-type MIP-2 and mutants in the peritoneum, but all activity of the mutants is lost in the lung, supporting the concept that GAG regulation of chemokines is tissue-dependent.


===crystal Structure analysis of MIP2===
A Model of GAG/MIP-2/CXCR2 Interfaces and Its Functional Effects.,Rajasekaran D, Keeler C, Syed MA, Jones MC, Harrison JK, Wu D, Bhandari V, Hodsdon ME, Lolis EJ Biochemistry. 2012 Jul 2. PMID:22686371<ref>PMID:22686371</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3n52" style="background-color:#fffaf0;"></div>


==About this Structure==
==See Also==
[[3n52]] 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=3N52 OCA].
*[[C-X-C motif chemokine 3D structures|C-X-C motif chemokine 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Rajasekaran, D.]]
[[Category: Rajasekaran D]]

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