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5anr

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Revision as of 07:21, 3 July 2019

Structure of a human 4E-T - DDX6 - CNOT1 complex

Structural highlights

5anr is a 3 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Activity:	RNA helicase, with EC number 3.6.4.13
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[4ET_HUMAN] Primary ovarian failure. [DDX6_HUMAN] Note=A chromosomal aberration involving DDX6 may be a cause of hematopoietic tumors such as B-cell lymphomas. Translocation t(11;14)(q23;q32).

Function

[CNOT1_HUMAN] Belongs to the CCR4-NOT complex that functions as general transcription regulation complex. Acts as a transcriptional repressor. Represses the ligand-dependent transcriptional activation by nuclear receptors.^[1] ^[2] [4ET_HUMAN] Nucleoplasmic shuttling protein. Mediates the nuclear import of EIF4E by a piggy-back mechanism. [DDX6_HUMAN] In the process of mRNA degradation, may play a role in mRNA decapping.

Publication Abstract from PubMed

The DEAD-box protein DDX6 is a central component of translational repression mechanisms in maternal mRNA storage in oocytes and microRNA-mediated silencing in somatic cells. DDX6 interacts with the CCR4-NOT complex and functions in concert with several post-transcriptional regulators, including Edc3, Pat1, and 4E-T. We show that the conserved CUP-homology domain (CHD) of human 4E-T interacts directly with DDX6 in both the presence and absence of the central MIF4G domain of CNOT1. The 2.1-A resolution structure of the corresponding ternary complex reveals how 4E-T CHD wraps around the RecA2 domain of DDX6 and contacts CNOT1. Although 4E-T CHD lacks recognizable sequence similarity with Edc3 or Pat1, it shares the same DDX6-binding surface. In contrast to 4E-T, however, the Edc3 and Pat1 FDF motifs dissociate from DDX6 upon CNOT1 MIF4G binding in vitro. The results underscore the presence of a complex network of simultaneous and/or mutually exclusive interactions in DDX6-mediated repression.

Structure of a Human 4E-T/DDX6/CNOT1 Complex Reveals the Different Interplay of DDX6-Binding Proteins with the CCR4-NOT Complex.,Ozgur S, Basquin J, Kamenska A, Filipowicz W, Standart N, Conti E Cell Rep. 2015 Oct 27;13(4):703-11. doi: 10.1016/j.celrep.2015.09.033. Epub 2015 , Oct 17. PMID:26489469^[3]

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

References

↑ Albert TK, Lemaire M, van Berkum NL, Gentz R, Collart MA, Timmers HT. Isolation and characterization of human orthologs of yeast CCR4-NOT complex subunits. Nucleic Acids Res. 2000 Feb 1;28(3):809-17. PMID:10637334
↑ Winkler GS, Mulder KW, Bardwell VJ, Kalkhoven E, Timmers HT. Human Ccr4-Not complex is a ligand-dependent repressor of nuclear receptor-mediated transcription. EMBO J. 2006 Jul 12;25(13):3089-99. Epub 2006 Jun 15. PMID:16778766 doi:7601194
↑ Ozgur S, Basquin J, Kamenska A, Filipowicz W, Standart N, Conti E. Structure of a Human 4E-T/DDX6/CNOT1 Complex Reveals the Different Interplay of DDX6-Binding Proteins with the CCR4-NOT Complex. Cell Rep. 2015 Oct 27;13(4):703-11. doi: 10.1016/j.celrep.2015.09.033. Epub 2015 , Oct 17. PMID:26489469 doi:http://dx.doi.org/10.1016/j.celrep.2015.09.033

1 Structural highlights
2 Disease
3 Function
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/5anr"

@@ Line 1: / Line 1: @@
-==4E-T - DDX6 - CNOT1 complex==
+==Structure of a human 4E-T - DDX6 - CNOT1 complex==
-<StructureSection load='5anr' size='340' side='right' caption='[[5anr]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
+<StructureSection load='5anr' size='340' side='right'caption='[[5anr]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5anr]] is a 3 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ANR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ANR FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5anr]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5ANR OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5ANR FirstGlance]. <br>
 </td></tr><tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/RNA_helicase RNA helicase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.13 3.6.4.13] </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=5anr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5anr OCA], [http://pdbe.org/5anr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5anr RCSB], [http://www.ebi.ac.uk/pdbsum/5anr 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=5anr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5anr OCA], [http://pdbe.org/5anr PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5anr RCSB], [http://www.ebi.ac.uk/pdbsum/5anr PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5anr ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 24: / Line 24: @@
 __TOC__
 </StructureSection>
+[[Category: Human]]
+[[Category: Large Structures]]
 [[Category: RNA helicase]]
 [[Category: Basquin, J]]

5anr

From Proteopedia

Revision as of 07:21, 3 July 2019

Structure of a human 4E-T - DDX6 - CNOT1 complex

Structural highlights

Disease

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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