5nvk - Revision history

OCA at 12:10, 22 November 2023

OCA — Wed, 22 Nov 2023 12:10:29 GMT

←Older revision		Revision as of 12:10, 22 November 2023
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	==Crystal structure of the human 4EHP-GIGYF1 complex==		==Crystal structure of the human 4EHP-GIGYF1 complex==
-	<StructureSection load='5nvk' size='340' side='right' caption='[[5nvk]], [[Resolution\|resolution]] 2.90Å' scene=''>	+	<StructureSection load='5nvk' size='340' side='right'caption='[[5nvk]], [[Resolution\|resolution]] 2.90Å' scene=''>
	== Structural highlights ==		== Structural highlights ==
-	<table><tr><td colspan='2'>[[5nvk]] is a 8 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=5NVK OCA]. For a <b>guided tour on the structure components</b> use [~~http~~://~~oca~~.~~weizmann.ac.il/oca-docs~~/fgij/fg.htm?mol=5NVK FirstGlance]. <br>	+	<table><tr><td colspan='2'>[[5nvk]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5NVK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5NVK FirstGlance]. <br>
-	</td></tr><tr id='~~gene~~'><td class="sblockLbl"><b>[[~~Gene~~\|~~Gene~~:]]</b></td><td class="sblockDat">~~EIF4E2~~, ~~EIF4EL3 (~~[~~http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN~~]~~), GIGYF1, CDS2, PERQ1, PP3360 ([http://www~~.~~ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info~~&~~srchmode=5&id=9606 HUMAN])~~</td></tr>	+	</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 2.9Å</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=5nvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5nvk OCA], [~~http~~://pdbe.org/5nvk PDBe], [~~http~~://www.rcsb.org/pdb/explore.do?structureId=5nvk RCSB], [~~http~~://www.ebi.ac.uk/pdbsum/5nvk PDBsum], [~~http~~://prosat.h-its.org/prosat/prosatexe?pdbcode=5nvk ProSAT]</span></td></tr>	+	<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5nvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5nvk OCA], [https://pdbe.org/5nvk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5nvk RCSB], [https://www.ebi.ac.uk/pdbsum/5nvk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5nvk ProSAT]</span></td></tr>
	</table>		</table>
	== Function ==		== Function ==
-	[~~[http~~://www.uniprot.org/uniprot/IF4E2_HUMAN IF4E2_HUMAN]] Recognizes and binds the 7-methylguanosine-containing mRNA cap during an early step in the initiation (PubMed:9582349, PubMed:17368478, PubMed:25624349). Acts as a repressor of translation initiation (PubMed:22751931). In contrast to EIF4E, it is unable to bind eIF4G (EIF4G1, EIF4G2 or EIF4G3), suggesting that it acts by competing with EIF4E and block assembly of eIF4F at the cap (By similarity).[UniProtKB:Q8BMB3]<ref>PMID:17368478</ref> <ref>PMID:22751931</ref> <ref>PMID:25624349</ref> <ref>PMID:9582349</ref> [[http://www.uniprot.org/uniprot/GGYF1_HUMAN GGYF1_HUMAN]] May act cooperatively with GRB10 to regulate tyrosine kinase receptor signaling. May increase IGF1 receptor phosphorylation under IGF1 stimulation as well as phosphorylation of IRS1 and SHC1 (By similarity).<ref>PMID:12771153</ref>	+	[https://www.uniprot.org/uniprot/IF4E2_HUMAN IF4E2_HUMAN] Recognizes and binds the 7-methylguanosine-containing mRNA cap during an early step in the initiation (PubMed:9582349, PubMed:17368478, PubMed:25624349). Acts as a repressor of translation initiation (PubMed:22751931). In contrast to EIF4E, it is unable to bind eIF4G (EIF4G1, EIF4G2 or EIF4G3), suggesting that it acts by competing with EIF4E and block assembly of eIF4F at the cap (By similarity).[UniProtKB:Q8BMB3]<ref>PMID:17368478</ref> <ref>PMID:22751931</ref> <ref>PMID:25624349</ref> <ref>PMID:9582349</ref>
	<div style="background-color:#fffaf0;">		<div style="background-color:#fffaf0;">
	== Publication Abstract from PubMed ==		== Publication Abstract from PubMed ==
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	</div>		</div>
	<div class="pdbe-citations 5nvk" style="background-color:#fffaf0;"></div>		<div class="pdbe-citations 5nvk" style="background-color:#fffaf0;"></div>
		+
		+	==See Also==
		+	*[[Eukaryotic initiation factor 3D structures\|Eukaryotic initiation factor 3D structures]]
	== References ==		== References ==
	<references/>		<references/>
	__TOC__		__TOC__
	</StructureSection>		</StructureSection>
-	[[Category: ~~Human~~]]	+	[[Category: Homo sapiens]]
-	[[Category: ~~Peter, D~~]]	+	[[Category: Large Structures]]
-	[[Category: ~~Valkov, E~~]]	+	[[Category: Peter D]]
-	[[Category: ~~4ehp-binding protein]]~~	+	[[Category: Valkov E]]
-	~~[[Category: Cap-binding protein]]~~	+
-	~~[[Category: Grb10-interacting gyf protein 1]]~~	+
-	~~[[Category: Translation]]~~	+
-	~~[[Category: Translational regulation~~]]	+

OCA at 04:45, 16 November 2017

OCA — Thu, 16 Nov 2017 04:45:04 GMT

←Older revision		Revision as of 04:45, 16 November 2017
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-	'''Unreleased structure'''

-	~~The entry~~ 5nvk is ~~ON HOLD~~ ~~until Paper~~ Publication	+	==Crystal structure of the human 4EHP-GIGYF1 complex==
		+	<StructureSection load='5nvk' size='340' side='right' caption='[[5nvk]], [[Resolution\|resolution]] 2.90Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[5nvk]] is a 8 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=5NVK OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5NVK FirstGlance]. <br>
		+	</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene\|Gene:]]</b></td><td class="sblockDat">EIF4E2, EIF4EL3 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), GIGYF1, CDS2, PERQ1, PP3360 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=5nvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5nvk OCA], [http://pdbe.org/5nvk PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5nvk RCSB], [http://www.ebi.ac.uk/pdbsum/5nvk PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5nvk ProSAT]</span></td></tr>
		+	</table>
		+	== Function ==
		+	[[http://www.uniprot.org/uniprot/IF4E2_HUMAN IF4E2_HUMAN]] Recognizes and binds the 7-methylguanosine-containing mRNA cap during an early step in the initiation (PubMed:9582349, PubMed:17368478, PubMed:25624349). Acts as a repressor of translation initiation (PubMed:22751931). In contrast to EIF4E, it is unable to bind eIF4G (EIF4G1, EIF4G2 or EIF4G3), suggesting that it acts by competing with EIF4E and block assembly of eIF4F at the cap (By similarity).[UniProtKB:Q8BMB3]<ref>PMID:17368478</ref> <ref>PMID:22751931</ref> <ref>PMID:25624349</ref> <ref>PMID:9582349</ref> [[http://www.uniprot.org/uniprot/GGYF1_HUMAN GGYF1_HUMAN]] May act cooperatively with GRB10 to regulate tyrosine kinase receptor signaling. May increase IGF1 receptor phosphorylation under IGF1 stimulation as well as phosphorylation of IRS1 and SHC1 (By similarity).<ref>PMID:12771153</ref>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	The eIF4E homologous protein (4EHP) is thought to repress translation by competing with eIF4E for binding to the 5' cap structure of specific mRNAs to which it is recruited through interactions with various proteins, including the GRB10-interacting GYF (glycine-tyrosine-phenylalanine domain) proteins 1 and 2 (GIGYF1/2). Despite its similarity to eIF4E, 4EHP does not interact with eIF4G and therefore fails to initiate translation. In contrast to eIF4G, GIGYF1/2 bind selectively to 4EHP but not eIF4E. Here, we present crystal structures of the 4EHP-binding regions of GIGYF1 and GIGYF2 in complex with 4EHP, which reveal the molecular basis for the selectivity of the GIGYF1/2 proteins for 4EHP. Complementation assays in a GIGYF1/2-null cell line using structure-based mutants indicate that 4EHP requires interactions with GIGYF1/2 to down-regulate target mRNA expression. Our studies provide structural insights into the assembly of 4EHP-GIGYF1/2 repressor complexes and reveal that rather than merely facilitating 4EHP recruitment to transcripts, GIGYF1/2 proteins are required for repressive activity.

-	~~Authors~~:	+	GIGYF1/2 proteins use auxiliary sequences to selectively bind to 4EHP and repress target mRNA expression.,Peter D, Weber R, Sandmeir F, Wohlbold L, Helms S, Bawankar P, Valkov E, Igreja C, Izaurralde E Genes Dev. 2017 Jun 1;31(11):1147-1161. doi: 10.1101/gad.299420.117. Epub 2017, Jul 11. PMID:28698298<ref>PMID:28698298</ref>

-	~~Description~~:	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased Structures~~]]	+	</div>
		+	<div class="pdbe-citations 5nvk" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Human]]
		+	[[Category: Peter, D]]
		+	[[Category: Valkov, E]]
		+	[[Category: 4ehp-binding protein]]
		+	[[Category: Cap-binding protein]]
		+	[[Category: Grb10-interacting gyf protein 1]]
		+	[[Category: Translation]]
		+	[[Category: Translational regulation]]

OCA at 09:57, 24 May 2017

OCA — Wed, 24 May 2017 09:57:14 GMT

←Older revision		Revision as of 09:57, 24 May 2017
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	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 5nvk is ON HOLD	+	The entry 5nvk is ON HOLD until Paper Publication

	Authors:		Authors:

OCA: Protected "5nvk" [edit=sysop:move=sysop]

OCA — Wed, 10 May 2017 09:27:53 GMT

Protected "5nvk" [edit=sysop:move=sysop]

←Older revision

Revision as of 09:27, 10 May 2017

OCA: New page: '''Unreleased structure''' The entry 5nvk is ON HOLD Authors: Description: Category: Unreleased Structures

OCA — Wed, 10 May 2017 09:27:52 GMT

New page: '''Unreleased structure''' The entry 5nvk is ON HOLD Authors: Description: Category: Unreleased Structures

New page

'''Unreleased structure'''

The entry 5nvk is ON HOLD

Authors:

Description:
[[Category: Unreleased Structures]]