1z3s

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[[Image:1z3s.gif|left|200px]]
 
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{{Structure
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==Angiopoietin-2 Receptor Binding Domain==
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|PDB= 1z3s |SIZE=350|CAPTION= <scene name='initialview01'>1z3s</scene>, resolution 2.35&Aring;
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<StructureSection load='1z3s' size='340' side='right'caption='[[1z3s]], [[Resolution|resolution]] 2.35&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>
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<table><tr><td colspan='2'>[[1z3s]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z3S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Z3S FirstGlance]. <br>
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|ACTIVITY=
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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]] 2.35&#8491;</td></tr>
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|GENE=
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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|DOMAIN=
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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=1z3s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z3s OCA], [https://pdbe.org/1z3s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1z3s RCSB], [https://www.ebi.ac.uk/pdbsum/1z3s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1z3s ProSAT]</span></td></tr>
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|RELATEDENTRY=[[1z3u|1Z3U]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1z3s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z3s OCA], [http://www.ebi.ac.uk/pdbsum/1z3s PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1z3s RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/ANGP2_HUMAN ANGP2_HUMAN] Binds to TEK/TIE2, competing for the ANGPT1 binding site, and modulating ANGPT1 signaling. Can induce tyrosine phosphorylation of TEK/TIE2 in the absence of ANGPT1. In the absence of angiogenic inducers, such as VEGF, ANGPT2-mediated loosening of cell-matrix contacts may induce endothelial cell apoptosis with consequent vascular regression. In concert with VEGF, it may facilitate endothelial cell migration and proliferation, thus serving as a permissive angiogenic signal.<ref>PMID:9204896</ref> <ref>PMID:15284220</ref> <ref>PMID:19116766</ref> <ref>PMID:19223473</ref>
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== Evolutionary Conservation ==
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'''Angiopoietin-2 Receptor Binding Domain'''
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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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==Overview==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z3/1z3s_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=1z3s 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 ==
The angiopoietins comprise a small class of secreted glycoproteins that play crucial roles in the maturation and maintenance of the mammalian vascular and lymphatic systems. They exert their effects through a member of the tyrosine kinase receptor family, Tie2. Angiopoietin/Tie2 signaling is unique among tyrosine kinase receptor-ligand systems in that distinct angiopoietin ligands, although highly homologous, can function as agonists or antagonists in a context-dependent manner. In an effort to understand this molecular dichotomy, we have crystallized and determined the 2.4 A crystal structure of the Angiopoietin-2 (Ang2) receptor binding region. The structure reveals a fibrinogen fold with a unique C-terminal P domain. Conservation analysis and structure-based mutagenesis identify a groove on the Ang2 molecular surface that mediates receptor recognition.
The angiopoietins comprise a small class of secreted glycoproteins that play crucial roles in the maturation and maintenance of the mammalian vascular and lymphatic systems. They exert their effects through a member of the tyrosine kinase receptor family, Tie2. Angiopoietin/Tie2 signaling is unique among tyrosine kinase receptor-ligand systems in that distinct angiopoietin ligands, although highly homologous, can function as agonists or antagonists in a context-dependent manner. In an effort to understand this molecular dichotomy, we have crystallized and determined the 2.4 A crystal structure of the Angiopoietin-2 (Ang2) receptor binding region. The structure reveals a fibrinogen fold with a unique C-terminal P domain. Conservation analysis and structure-based mutagenesis identify a groove on the Ang2 molecular surface that mediates receptor recognition.
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==About this Structure==
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Structure of the angiopoietin-2 receptor binding domain and identification of surfaces involved in Tie2 recognition.,Barton WA, Tzvetkova D, Nikolov DB Structure. 2005 May;13(5):825-32. PMID:15893672<ref>PMID:15893672</ref>
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1Z3S is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Z3S 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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Structure of the angiopoietin-2 receptor binding domain and identification of surfaces involved in Tie2 recognition., Barton WA, Tzvetkova D, Nikolov DB, Structure. 2005 May;13(5):825-32. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/15893672 15893672]
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</div>
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<div class="pdbe-citations 1z3s" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Barton, W A.]]
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[[Category: Barton WA]]
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[[Category: Nikolov, D B.]]
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[[Category: Nikolov DB]]
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[[Category: Tzvetkova, D.]]
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[[Category: Tzvetkova D]]
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[[Category: angiogenesis]]
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[[Category: tie2 binding]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:28:45 2008''
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Current revision

Angiopoietin-2 Receptor Binding Domain

PDB ID 1z3s

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