1ff5: Difference between revisions
No edit summary |
No edit summary |
||
| (13 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
< | ==STRUCTURE OF E-CADHERIN DOUBLE DOMAIN== | ||
<StructureSection load='1ff5' size='340' side='right'caption='[[1ff5]], [[Resolution|resolution]] 2.93Å' scene=''> | |||
You may | == Structural highlights == | ||
<table><tr><td colspan='2'>[[1ff5]] is a 2 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=1FF5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1FF5 FirstGlance]. <br> | |||
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.93Å</td></tr> | |||
-- | <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> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ff5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ff5 OCA], [https://pdbe.org/1ff5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ff5 RCSB], [https://www.ebi.ac.uk/pdbsum/1ff5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ff5 ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/CADH1_MOUSE CADH1_MOUSE] Cadherins are calcium-dependent cell adhesion proteins. They preferentially interact with themselves in a homophilic manner in connecting cells; cadherins may thus contribute to the sorting of heterogeneous cell types. CDH1 is involved in mechanisms regulating cell-cell adhesions, mobility and proliferation of epithelial cells. Has a potent invasive suppressor role. It is a ligand for integrin alpha-E/beta-7 (By similarity). E-Cad/CTF2 promotes non-amyloidogenic degradation of Abeta precursors. Has a strong inhibitory effect on APP C99 and C83 production (By similarity). | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ff/1ff5_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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=1ff5 ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Electron microscopy of ECADCOMP, a recombinant E-cadherin ectodomain pentamerized by the assembly domain of cartilage oligomeric matrix protein, has been used to analyze the role of cis-dimerization and trans-interaction in the homophilic association of this cell adhesion molecule. The Ca2+ dependency of both interactions was investigated. Low Ca2+ concentrations (50 microM) stabilized the rod-like structure of E-cadherin. At medium Ca2+ concentration (500 microM), two adjacent ectodomains in a pentamer formed cis-dimers. At high Ca2+ concentration (>1 mM), two cis-dimers from different pentamers formed a trans-interaction. The X-ray structure of an N-terminal domain pair of E-cadherin revealed two molecules per asymmetric unit in an intertwisted X-shaped arrangement with closest contacts in the Ca2+-binding region between domains 1 and 2. Contrary to previous data, Trp2 was docked in the hydrophobic cavity of its own molecule, and was therefore not involved in cis-dimerization of two molecules. This was supported further by W2A and A80I (a residue involved in the hydrophobic cavity surrounding Trp2) mutations in ECADCOMP which both led to abrogation of the trans- but not the cis-interaction. Structural and biochemical data suggest a link between Ca2+ binding in the millimolar range and Trp2 docking, both events being essential for the trans-association. | |||
A new crystal structure, Ca2+ dependence and mutational analysis reveal molecular details of E-cadherin homoassociation.,Pertz O, Bozic D, Koch AW, Fauser C, Brancaccio A, Engel J EMBO J. 1999 Apr 1;18(7):1738-47. PMID:10202138<ref>PMID:10202138</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 1ff5" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Cadherin 3D structures|Cadherin 3D structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | [[Category: Large Structures]] | ||
== | |||
< | |||
[[Category: Mus musculus]] | [[Category: Mus musculus]] | ||
[[Category: Bozic | [[Category: Bozic D]] | ||
[[Category: Brancaccio | [[Category: Brancaccio A]] | ||
[[Category: Engel | [[Category: Engel J]] | ||
[[Category: Fauser | [[Category: Fauser C]] | ||
[[Category: Koch | [[Category: Koch AW]] | ||
[[Category: Pertz | [[Category: Pertz O]] | ||
Latest revision as of 11:28, 22 May 2024
STRUCTURE OF E-CADHERIN DOUBLE DOMAINSTRUCTURE OF E-CADHERIN DOUBLE DOMAIN
Structural highlights
FunctionCADH1_MOUSE Cadherins are calcium-dependent cell adhesion proteins. They preferentially interact with themselves in a homophilic manner in connecting cells; cadherins may thus contribute to the sorting of heterogeneous cell types. CDH1 is involved in mechanisms regulating cell-cell adhesions, mobility and proliferation of epithelial cells. Has a potent invasive suppressor role. It is a ligand for integrin alpha-E/beta-7 (By similarity). E-Cad/CTF2 promotes non-amyloidogenic degradation of Abeta precursors. Has a strong inhibitory effect on APP C99 and C83 production (By similarity). 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 PubMedElectron microscopy of ECADCOMP, a recombinant E-cadherin ectodomain pentamerized by the assembly domain of cartilage oligomeric matrix protein, has been used to analyze the role of cis-dimerization and trans-interaction in the homophilic association of this cell adhesion molecule. The Ca2+ dependency of both interactions was investigated. Low Ca2+ concentrations (50 microM) stabilized the rod-like structure of E-cadherin. At medium Ca2+ concentration (500 microM), two adjacent ectodomains in a pentamer formed cis-dimers. At high Ca2+ concentration (>1 mM), two cis-dimers from different pentamers formed a trans-interaction. The X-ray structure of an N-terminal domain pair of E-cadherin revealed two molecules per asymmetric unit in an intertwisted X-shaped arrangement with closest contacts in the Ca2+-binding region between domains 1 and 2. Contrary to previous data, Trp2 was docked in the hydrophobic cavity of its own molecule, and was therefore not involved in cis-dimerization of two molecules. This was supported further by W2A and A80I (a residue involved in the hydrophobic cavity surrounding Trp2) mutations in ECADCOMP which both led to abrogation of the trans- but not the cis-interaction. Structural and biochemical data suggest a link between Ca2+ binding in the millimolar range and Trp2 docking, both events being essential for the trans-association. A new crystal structure, Ca2+ dependence and mutational analysis reveal molecular details of E-cadherin homoassociation.,Pertz O, Bozic D, Koch AW, Fauser C, Brancaccio A, Engel J EMBO J. 1999 Apr 1;18(7):1738-47. PMID:10202138[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
|
| ||||||||||||||||||