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3wvz

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Revision as of 17:07, 2 January 2017

Crystal structure of Hikeshi, a new nuclear transport receptor of Hsp70

Structural highlights

3wvz is a 2 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	3ww0
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[HIKES_HUMAN] Acts as a specific nuclear import carrier for HSP70 proteins following heat-shock stress: acts by mediating the nucleoporin-dependent translocation of ATP-bound HSP70 proteins into the nucleus. HSP70 proteins import is required to protect cells from heat shock damages. Does not translocate ADP-bound HSP70 proteins into the nucleus.^[1]

Publication Abstract from PubMed

Hikeshi is a nuclear transport receptor required for cell survival after stress. It mediates heat-shock-induced nuclear import of 70 kDa heat-shock proteins (Hsp70s) through interactions with FG-nucleoporins (FG-Nups), which are proteins in nuclear pore complexes (NPCs). Here, the crystal structure of human Hikeshi is presented at 1.8 A resolution. Hikeshi forms an asymmetric homodimer that is responsible for the interaction with Hsp70s. The asymmetry of Hikeshi arises from the distinct conformation of the C-terminal domain (CTD) and the flexibility of the linker regions of each monomer. Structure-guided mutational analyses showed that both the flexible linker region and the CTD are important for nuclear import of Hsp70. Pull-down assays revealed that only full-length Hsp70s can interact with Hikeshi. The N-terminal domain (NTD) consists of a jelly-roll/beta-sandwich fold structure which contains hydrophobic pockets involved in FG-Nup recognition. A unique extended loop (E-loop) in the NTD is likely to regulate the interactions of Hikeshi with FG-Nups. The crystal structure of Hikeshi explains how Hikeshi participates in the regulation of nuclear import through the recognition of FG-Nups and which part of Hikeshi affects its binding to Hsp70. This study is the first to yield structural insight into this highly unique import receptor.

Structural and functional analysis of Hikeshi, a new nuclear transport receptor of Hsp70s.,Song J, Kose S, Watanabe A, Son SY, Choi S, Hong H, Yamashita E, Park IY, Imamoto N, Lee SJ Acta Crystallogr D Biol Crystallogr. 2015 Mar 1;71(Pt 3):473-83. doi:, 10.1107/S1399004714026881. Epub 2015 Feb 26. PMID:25760597^[2]

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

References

↑ Kose S, Furuta M, Imamoto N. Hikeshi, a nuclear import carrier for Hsp70s, protects cells from heat shock-induced nuclear damage. Cell. 2012 Apr 27;149(3):578-89. doi: 10.1016/j.cell.2012.02.058. PMID:22541429 doi:http://dx.doi.org/10.1016/j.cell.2012.02.058
↑ Song J, Kose S, Watanabe A, Son SY, Choi S, Hong H, Yamashita E, Park IY, Imamoto N, Lee SJ. Structural and functional analysis of Hikeshi, a new nuclear transport receptor of Hsp70s. Acta Crystallogr D Biol Crystallogr. 2015 Mar 1;71(Pt 3):473-83. doi:, 10.1107/S1399004714026881. Epub 2015 Feb 26. PMID:25760597 doi:http://dx.doi.org/10.1107/S1399004714026881

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3wvz"

@@ Line 1: / Line 1: @@
 ==Crystal structure of Hikeshi, a new nuclear transport receptor of Hsp70==
 <StructureSection load='3wvz' size='340' side='right' caption='[[3wvz]], [[Resolution|resolution]] 1.88&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[3wvz]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3WVZ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3WVZ FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3ww0|3ww0]]</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=3wvz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wvz OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wvz RCSB], [http://www.ebi.ac.uk/pdbsum/3wvz 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=3wvz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wvz OCA], [http://pdbe.org/3wvz PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wvz RCSB], [http://www.ebi.ac.uk/pdbsum/3wvz PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wvz ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 16: / Line 17: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3wvz" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

3wvz

From Proteopedia

Revision as of 17:07, 2 January 2017

Crystal structure of Hikeshi, a new nuclear transport receptor of Hsp70

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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