6b4h

From Proteopedia

(Difference between revisions)

Revision as of 06:00, 14 October 2020

Crystal structure of Chaetomium thermophilum Gle1 CTD-Nup42 GBM-IP6 complex

Structural highlights

6b4h is a 4 chain structure with sequence from Chatd. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, ,
Gene:	AMO1, CTHT_0020020 (CHATD), GLE1, CTHT_0027940 (CHATD)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[AMO1_CHATD] Functions as a component of the nuclear pore complex (NPC). NPC components, collectively referred to as nucleoporins (NUPs), can play the role of both NPC structural components and of docking or interaction partners for transiently associated nuclear transport factors. Active directional transport is assured by both, a Phe-Gly (FG) repeat affinity gradient for these transport factors across the NPC and a transport cofactor concentration gradient across the nuclear envelope (GSP1 and GSP2 GTPases associated predominantly with GTP in the nucleus, with GDP in the cytoplasm). AMO1 is specifically important for nuclear protein and mRNA export.[UniProtKB:P49686] [GLE1_CHATD] Functions as a component of the nuclear pore complex (NPC). NPC components, collectively referred to as nucleoporins (NUPs), can play the role of both NPC structural components and of docking or interaction partners for transiently associated nuclear transport factors.[UniProtKB:Q12315]

Publication Abstract from PubMed

The nuclear pore complex (NPC) controls the passage of macromolecules between the nucleus and cytoplasm, but how the NPC directly participates in macromolecular transport remains poorly understood. In the final step of mRNA export, the DEAD-box helicase DDX19 is activated by the nucleoporins Gle1, Nup214, and Nup42 to remove Nxf1*Nxt1 from mRNAs. Here, we report crystal structures of Gle1*Nup42 from three organisms that reveal an evolutionarily conserved binding mode. Biochemical reconstitution of the DDX19 ATPase cycle establishes that human DDX19 activation does not require IP6, unlike its fungal homologs, and that Gle1 stability affects DDX19 activation. Mutations linked to motor neuron diseases cause decreased Gle1 thermostability, implicating nucleoporin misfolding as a disease determinant. Crystal structures of human Gle1*Nup42*DDX19 reveal the structural rearrangements in DDX19 from an auto-inhibited to an RNA-binding competent state. Together, our results provide the foundation for further mechanistic analyses of mRNA export in humans.

Structural and functional analysis of mRNA export regulation by the nuclear pore complex.,Lin DH, Correia AR, Cai SW, Huber FM, Jette CA, Hoelz A Nat Commun. 2018 Jun 13;9(1):2319. doi: 10.1038/s41467-018-04459-3. PMID:29899397^[1]

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

References

↑ Lin DH, Correia AR, Cai SW, Huber FM, Jette CA, Hoelz A. Structural and functional analysis of mRNA export regulation by the nuclear pore complex. Nat Commun. 2018 Jun 13;9(1):2319. doi: 10.1038/s41467-018-04459-3. PMID:29899397 doi:http://dx.doi.org/10.1038/s41467-018-04459-3

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/6b4h"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Chaetomium thermophilum Gle1 CTD-Nup42 GBM-IP6 complex==
-<StructureSection load='6b4h' size='340' side='right' caption='[[6b4h]], [[Resolution|resolution]] 2.17&Aring;' scene=''>
+<StructureSection load='6b4h' size='340' side='right'caption='[[6b4h]], [[Resolution|resolution]] 2.17&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[6b4h]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Chatd Chatd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6B4H OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6B4H FirstGlance]. <br>
+<table><tr><td colspan='2'>[[6b4h]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Chatd Chatd]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6B4H OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=6B4H FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=IHP:INOSITOL+HEXAKISPHOSPHATE'>IHP</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IHP:INOSITOL+HEXAKISPHOSPHATE'>IHP</scene>, <scene name='pdbligand=MES:2-(N-MORPHOLINO)-ETHANESULFONIC+ACID'>MES</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">AMO1, CTHT_0020020 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=759272 CHATD]), GLE1, CTHT_0027940 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=759272 CHATD])</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=6b4h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6b4h OCA], [http://pdbe.org/6b4h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6b4h RCSB], [http://www.ebi.ac.uk/pdbsum/6b4h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6b4h ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=6b4h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6b4h OCA], [http://pdbe.org/6b4h PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6b4h RCSB], [http://www.ebi.ac.uk/pdbsum/6b4h PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6b4h ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 21: / Line 21: @@
 ==See Also==
-*[[Nucleoporin|Nucleoporin]]
+*[[Nucleoporin 3D structures|Nucleoporin 3D structures]]
 == References ==
 <references/>
@@ Line 27: / Line 27: @@
 </StructureSection>
 [[Category: Chatd]]
+[[Category: Large Structures]]
 [[Category: Cai, S W]]
 [[Category: Correia, A R]]

6b4h

From Proteopedia

Revision as of 06:00, 14 October 2020

Crystal structure of Chaetomium thermophilum Gle1 CTD-Nup42 GBM-IP6 complex

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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