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1jkg

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Revision as of 09:18, 6 November 2019

Structural basis for the recognition of a nucleoporin FG-repeat by the NTF2-like domain of TAP-p15 mRNA nuclear export factor

Structural highlights

1jkg is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	1jn5
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[NXT1_HUMAN] Stimulator of protein export for NES-containing proteins. Also plays a role in the nuclear export of U1 snRNA, tRNA, and mRNA. The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5.^[1] ^[2] ^[3] ^[4] [NXF1_HUMAN] Involved in the nuclear export of mRNA species bearing retroviral constitutive transport elements (CTE) and in the export of mRNA from the nucleus to the cytoplasm. The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5.^[5] ^[6]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

TAP-p15 heterodimers have been implicated in the export of mRNAs through nuclear pore complexes (NPCs). We report a structural analysis of the interaction domains of TAP and p15 in a ternary complex with a Phe-Gly (FG) repeat of an NPC component. The TAP-p15 heterodimer is structurally similar to the homodimeric transport factor NTF2, but unlike NTF2, it is incompatible with either homodimerization or Ran binding. The NTF2-like heterodimer functions as a single structural unit in recognizing an FG repeat at a hydrophobic pocket present only on TAP and not on p15. This FG binding site interacts synergistically with a second site at the C terminus of TAP to mediate mRNA transport through the pore. In general, our findings suggest that FG repeats bind with a similar conformation to different classes of transport factors.

Structural basis for the recognition of a nucleoporin FG repeat by the NTF2-like domain of the TAP/p15 mRNA nuclear export factor.,Fribourg S, Braun IC, Izaurralde E, Conti E Mol Cell. 2001 Sep;8(3):645-56. PMID:11583626^[7]

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

References

↑ Black BE, Levesque L, Holaska JM, Wood TC, Paschal BM. Identification of an NTF2-related factor that binds Ran-GTP and regulates nuclear protein export. Mol Cell Biol. 1999 Dec;19(12):8616-24. PMID:10567585
↑ Ossareh-Nazari B, Maison C, Black BE, Levesque L, Paschal BM, Dargemont C. RanGTP-binding protein NXT1 facilitates nuclear export of different classes of RNA in vitro. Mol Cell Biol. 2000 Jul;20(13):4562-71. PMID:10848583
↑ Guzik BW, Levesque L, Prasad S, Bor YC, Black BE, Paschal BM, Rekosh D, Hammarskjold ML. NXT1 (p15) is a crucial cellular cofactor in TAP-dependent export of intron-containing RNA in mammalian cells. Mol Cell Biol. 2001 Apr;21(7):2545-54. PMID:11259602 doi:10.1128/MCB.21.7.2545-2554.2001
↑ Katahira J, Inoue H, Hurt E, Yoneda Y. Adaptor Aly and co-adaptor Thoc5 function in the Tap-p15-mediated nuclear export of HSP70 mRNA. EMBO J. 2009 Mar 4;28(5):556-67. doi: 10.1038/emboj.2009.5. Epub 2009 Jan 22. PMID:19165146 doi:10.1038/emboj.2009.5
↑ Gruter P, Tabernero C, von Kobbe C, Schmitt C, Saavedra C, Bachi A, Wilm M, Felber BK, Izaurralde E. TAP, the human homolog of Mex67p, mediates CTE-dependent RNA export from the nucleus. Mol Cell. 1998 Apr;1(5):649-59. PMID:9660949
↑ Katahira J, Inoue H, Hurt E, Yoneda Y. Adaptor Aly and co-adaptor Thoc5 function in the Tap-p15-mediated nuclear export of HSP70 mRNA. EMBO J. 2009 Mar 4;28(5):556-67. doi: 10.1038/emboj.2009.5. Epub 2009 Jan 22. PMID:19165146 doi:10.1038/emboj.2009.5
↑ Fribourg S, Braun IC, Izaurralde E, Conti E. Structural basis for the recognition of a nucleoporin FG repeat by the NTF2-like domain of the TAP/p15 mRNA nuclear export factor. Mol Cell. 2001 Sep;8(3):645-56. PMID:11583626

1 Structural highlights
2 Function
3 Evolutionary Conservation
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/1jkg"

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 ==Structural basis for the recognition of a nucleoporin FG-repeat by the NTF2-like domain of TAP-p15 mRNA nuclear export factor==
-<StructureSection load='1jkg' size='340' side='right' caption='[[1jkg]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
+<StructureSection load='1jkg' size='340' side='right'caption='[[1jkg]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[1jkg]] is a 2 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=1JKG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JKG FirstGlance]. <br>
@@ Line 33: / Line 33: @@
 </StructureSection>
 [[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Braun, I C]]
 [[Category: Conti, E]]

1jkg

From Proteopedia

Revision as of 09:18, 6 November 2019

Structural basis for the recognition of a nucleoporin FG-repeat by the NTF2-like domain of TAP-p15 mRNA nuclear export factor

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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