3ny3: Difference between revisions
From Proteopedia
Jump to navigationJump to search
m Protected "3ny3" [edit=sysop:move=sysop] |
No edit summary |
||
| Line 1: | Line 1: | ||
==Structure of the ubr-box of UBR2 in complex with N-degron== | |||
=== | <StructureSection load='3ny3' size='340' side='right' caption='[[3ny3]], [[Resolution|resolution]] 1.60Å' scene=''> | ||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[3ny3]] is a 2 chain structure with 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=3NY3 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3NY3 FirstGlance]. <br> | |||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | |||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ny1|3ny1]], [[3ny2|3ny2]]</td></tr> | |||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">UBR2, C6orf133, KIAA0349 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 Homo sapiens])</td></tr> | |||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Ubiquitin--protein_ligase Ubiquitin--protein ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.3.2.19 6.3.2.19] </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=3ny3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3ny3 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3ny3 RCSB], [http://www.ebi.ac.uk/pdbsum/3ny3 PDBsum]</span></td></tr> | |||
</table> | |||
== 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/ny/3ny3_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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The N-end rule links the half-life of a protein to the identity of its N-terminal residue. Destabilizing N-terminal residues are recognized by E3 ubiquitin ligases, termed N-recognins. A conserved structural domain called the UBR box is responsible for their specificity. Here we report the crystal structures of the UBR boxes of the human N-recognins UBR1 and UBR2, alone and in complex with an N-end rule peptide, Arg-Ile-Phe-Ser. These structures show that the UBR box adopts a previously undescribed fold stabilized through the binding of three zinc ions to form a binding pocket for type 1 N-degrons. NMR experiments reveal a preference for N-terminal arginine. Peptide binding is abrogated by N-terminal acetylation of the peptide or loss of the positive charge of the N-terminal residue. These results rationalize and refine the empirical rules for the classification of type 1 N-degrons. We also confirm that a missense mutation in UBR1 that is responsible for Johanson-Blizzard syndrome leads to UBR box unfolding and loss of function. | |||
Structural basis of substrate recognition and specificity in the N-end rule pathway.,Matta-Camacho E, Kozlov G, Li FF, Gehring K Nat Struct Mol Biol. 2010 Oct;17(10):1182-7. Epub 2010 Sep 12. PMID:20835242<ref>PMID:20835242</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
==See Also== | ==See Also== | ||
*[[Ubiquitin protein ligase|Ubiquitin protein ligase]] | *[[Ubiquitin protein ligase|Ubiquitin protein ligase]] | ||
== References == | |||
== | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Ubiquitin--protein ligase]] | [[Category: Ubiquitin--protein ligase]] | ||
[[Category: Gehring, K | [[Category: Gehring, K]] | ||
[[Category: Kozlov, G | [[Category: Kozlov, G]] | ||
[[Category: Li, F | [[Category: Li, F]] | ||
[[Category: Matta-Camacho, E | [[Category: Matta-Camacho, E]] | ||
[[Category: Ligase]] | [[Category: Ligase]] | ||
[[Category: Lygase]] | [[Category: Lygase]] | ||
