5aie

From Proteopedia

(Difference between revisions)

Revision as of 10:01, 10 March 2017

Not4 ring domain in complex Ubc4

Structural highlights

5aie is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Activity:	Ubiquitin--protein ligase, with EC number 6.3.2.19
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NOT4_YEAST] Acts as component of the CCR4-NOT core complex, which in the nucleus seems to be a general transcription factor, and in the cytoplasm the major mRNA deadenylase involved in mRNA turnover. The NOT protein subcomplex negatively regulates the basal and activated transcription of many genes. Preferentially affects TC-type TATA element-dependent transcription. Could directly or indirectly inhibit component(s) of the general transcription machinery.^[1] [UBC4_YEAST] Catalyzes the covalent attachment of ubiquitin to other proteins. Mediates the selective degradation of short-lived and abnormal proteins. Mediates ubiquitination of PEX5.^[2]

Publication Abstract from PubMed

The Ccr4-Not complex regulates eukaryotic gene expression at multiple levels, including mRNA turnover, translational repression, and transcription. We have studied the ubiquitylation module of the yeast Ccr4-Not complex and addressed how E3 ligase binds cognate E2 and how it is tethered to the complex. The 2.8-A resolution crystal structure of the N-terminal RING domain of Not4 in complex with Ubc4 shows the detailed interactions of this E3-E2 complex. The 3.6-A resolution crystal structure of the C-terminal domain of the yeast Not4 in complex with the C-terminal domain of Not1 reveals how a largely extended region at the C-terminus of Not4 wraps around a HEAT-repeat region of Not1. This C-terminal region of Not4 is only partly conserved in metazoans, rationalizing its weaker Not1-binding properties. The structural and biochemical data show how Not1 can incorporate both the ubiquitylation module and the Not2-Not3/5 module concomitantly in the Ccr4-Not complex.

Architecture of the ubiquitylation module of the yeast ccr4-not complex.,Bhaskar V, Basquin J, Conti E Structure. 2015 May 5;23(5):921-8. doi: 10.1016/j.str.2015.03.011. Epub 2015 Apr , 23. PMID:25914052^[3]

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

References

↑ Liu HY, Badarinarayana V, Audino DC, Rappsilber J, Mann M, Denis CL. The NOT proteins are part of the CCR4 transcriptional complex and affect gene expression both positively and negatively. EMBO J. 1998 Feb 16;17(4):1096-106. PMID:9463387 doi:http://dx.doi.org/10.1093/emboj/17.4.1096
↑ Williams C, van den Berg M, Sprenger RR, Distel B. A conserved cysteine is essential for Pex4p-dependent ubiquitination of the peroxisomal import receptor Pex5p. J Biol Chem. 2007 Aug 3;282(31):22534-43. Epub 2007 Jun 5. PMID:17550898 doi:http://dx.doi.org/10.1074/jbc.M702038200
↑ Bhaskar V, Basquin J, Conti E. Architecture of the ubiquitylation module of the yeast ccr4-not complex. Structure. 2015 May 5;23(5):921-8. doi: 10.1016/j.str.2015.03.011. Epub 2015 Apr , 23. PMID:25914052 doi:http://dx.doi.org/10.1016/j.str.2015.03.011

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/5aie"

@@ Line 1: / Line 1: @@
 ==Not4 ring domain in complex Ubc4==
 <StructureSection load='5aie' size='340' side='right' caption='[[5aie]], [[Resolution|resolution]] 2.80&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=ZN:ZINC+ION'>ZN</scene></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=5aie FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5aie OCA], [http://www.rcsb.org/pdb/explore.do?structureId=5aie RCSB], [http://www.ebi.ac.uk/pdbsum/5aie 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=5aie FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5aie OCA], [http://pdbe.org/5aie PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5aie RCSB], [http://www.ebi.ac.uk/pdbsum/5aie PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5aie ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 5aie" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Ubiquitin conjugating enzyme|Ubiquitin conjugating enzyme]]
 == References ==
 <references/>

5aie

From Proteopedia

Revision as of 10:01, 10 March 2017

Not4 ring domain in complex Ubc4

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox