1z3u

From Proteopedia

(Difference between revisions)

Revision as of 09:15, 2 May 2018

Structure of the Angiopoietin-2 Recptor Binding Domain and Identification of Surfaces Involved in Tie2 Recognition

Structural highlights

1z3u is a 4 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	1z3s
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[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.^[1] ^[2] ^[3] ^[4]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

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.

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^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Maisonpierre PC, Suri C, Jones PF, Bartunkova S, Wiegand SJ, Radziejewski C, Compton D, McClain J, Aldrich TH, Papadopoulos N, Daly TJ, Davis S, Sato TN, Yancopoulos GD. Angiopoietin-2, a natural antagonist for Tie2 that disrupts in vivo angiogenesis. Science. 1997 Jul 4;277(5322):55-60. PMID:9204896
↑ Lee HJ, Cho CH, Hwang SJ, Choi HH, Kim KT, Ahn SY, Kim JH, Oh JL, Lee GM, Koh GY. Biological characterization of angiopoietin-3 and angiopoietin-4. FASEB J. 2004 Aug;18(11):1200-8. PMID:15284220 doi:10.1096/fj.03-1466com
↑ Yacyshyn OK, Lai PF, Forse K, Teichert-Kuliszewska K, Jurasz P, Stewart DJ. Tyrosine phosphatase beta regulates angiopoietin-Tie2 signaling in human endothelial cells. Angiogenesis. 2009;12(1):25-33. doi: 10.1007/s10456-008-9126-0. Epub 2009 Jan 1. PMID:19116766 doi:10.1007/s10456-008-9126-0
↑ Yuan HT, Khankin EV, Karumanchi SA, Parikh SM. Angiopoietin 2 is a partial agonist/antagonist of Tie2 signaling in the endothelium. Mol Cell Biol. 2009 Apr;29(8):2011-22. doi: 10.1128/MCB.01472-08. Epub 2009 Feb, 17. PMID:19223473 doi:10.1128/MCB.01472-08
↑ Barton WA, Tzvetkova D, Nikolov DB. Structure of the angiopoietin-2 receptor binding domain and identification of surfaces involved in Tie2 recognition. Structure. 2005 May;13(5):825-32. PMID:15893672 doi:http://dx.doi.org/10.1016/j.str.2005.03.009

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/1z3u"

@@ Line 1: / Line 1: @@
 ==Structure of the Angiopoietin-2 Recptor Binding Domain and Identification of Surfaces Involved in Tie2 Recognition==
 <StructureSection load='1z3u' size='340' side='right' caption='[[1z3u]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </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">[[1z3s|1z3s]]</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=1z3u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z3u OCA], [http://pdbe.org/1z3u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1z3u RCSB], [http://www.ebi.ac.uk/pdbsum/1z3u PDBsum]</span></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=1z3u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1z3u OCA], [http://pdbe.org/1z3u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1z3u RCSB], [http://www.ebi.ac.uk/pdbsum/1z3u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1z3u ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 13: / Line 14: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z3/1z3u_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/z3/1z3u_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>

1z3u

From Proteopedia

Revision as of 09:15, 2 May 2018

Structure of the Angiopoietin-2 Recptor Binding Domain and Identification of Surfaces Involved in Tie2 Recognition

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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