6dfx - Revision history

OCA at 05:54, 17 April 2019

OCA — Wed, 17 Apr 2019 05:54:21 GMT

←Older revision		Revision as of 05:54, 17 April 2019
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-	'''Unreleased structure'''

-	~~The entry~~ 6dfx is ~~ON HOLD until Paper~~ Publication	+	==human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide==
		+	<StructureSection load='6dfx' size='340' side='right'caption='[[6dfx]], [[Resolution\|resolution]] 2.03Å' scene=''>
		+	== Structural highlights ==
		+	<table><tr><td colspan='2'>[[6dfx]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6DFX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6DFX FirstGlance]. <br>
		+	</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
		+	<tr id='related'><td class="sblockLbl"><b>[[Related_structure\|Related:]]</b></td><td class="sblockDat">[[6dfs\|6dfs]]</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=6dfx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6dfx OCA], [http://pdbe.org/6dfx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6dfx RCSB], [http://www.ebi.ac.uk/pdbsum/6dfx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6dfx ProSAT]</span></td></tr>
		+	</table>
		+	<div style="background-color:#fffaf0;">
		+	== Publication Abstract from PubMed ==
		+	In type 1 diabetes (T1D), proinsulin is a major autoantigen and the insulin B:9-23 peptide contains epitopes for CD4(+) T cells in both mice and humans. This peptide requires carboxyl-terminal mutations for uniform binding in the proper position within the mouse IA(g7) or human DQ8 major histocompatibility complex (MHC) class II (MHCII) peptide grooves and for strong CD4(+) T cell stimulation. Here, we present crystal structures showing how these mutations control CD4(+) T cell receptor (TCR) binding to these MHCII-peptide complexes. Our data reveal stricking similarities between mouse and human CD4(+) TCRs in their interactions with these ligands. We also show how fusions between fragments of B:9-23 and of proinsulin C-peptide create chimeric peptides with activities as strong or stronger than the mutated insulin peptides. We propose transpeptidation in the lysosome as a mechanism that could accomplish these fusions in vivo, similar to the creation of fused peptide epitopes for MHCI presentation shown to occur by transpeptidation in the proteasome. Were this mechanism limited to the pancreas and absent in the thymus, it could provide an explanation for how diabetogenic T cells escape negative selection during development but find their modified target antigens in the pancreas to cause T1D.

-	~~Authors: Wang~~, Y., ~~Dai~~, S.	+	How C-terminal additions to insulin B-chain fragments create superagonists for T cells in mouse and human type 1 diabetes.,Wang Y, Sosinowski T, Novikov A, Crawford F, White J, Jin N, Liu Z, Zou J, Neau D, Davidson HW, Nakayama M, Kwok WW, Gapin L, Marrack P, Kappler JW, Dai S Sci Immunol. 2019 Apr 5;4(34). pii: 4/34/eaav7517. doi:, 10.1126/sciimmunol.aav7517. PMID:30952805<ref>PMID:30952805</ref>

-	~~Description: human diabetogenic TCR T1D3 in complex with DQ8~~-~~p8E9E peptide~~	+	From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
-	[[Category: ~~Unreleased~~ Structures]]	+	</div>
		+	<div class="pdbe-citations 6dfx" style="background-color:#fffaf0;"></div>
		+	== References ==
		+	<references/>
		+	__TOC__
		+	</StructureSection>
		+	[[Category: Large Structures]]
	[[Category: Dai, S]]		[[Category: Dai, S]]
	[[Category: Wang, Y]]		[[Category: Wang, Y]]
		+	[[Category: Autoimmunity]]
		+	[[Category: Immune system]]
		+	[[Category: T cell receptor]]
		+	[[Category: Type 1 diabetes]]

OCA at 05:35, 14 June 2018

OCA — Thu, 14 Jun 2018 05:35:40 GMT

←Older revision		Revision as of 05:35, 14 June 2018
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	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 6dfx is ON HOLD	+	The entry 6dfx is ON HOLD until Paper Publication

	Authors: Wang, Y., Dai, S.		Authors: Wang, Y., Dai, S.

OCA at 04:17, 6 June 2018

OCA — Wed, 06 Jun 2018 04:17:37 GMT

←Older revision		Revision as of 04:17, 6 June 2018
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 6dfx is ON HOLD ~~until sometime in the future~~	+	The entry 6dfx is ON HOLD

	Authors: Wang, Y., Dai, S.		Authors: Wang, Y., Dai, S.

OCA at 04:04, 30 May 2018

OCA — Wed, 30 May 2018 04:04:47 GMT

←Older revision		Revision as of 04:04, 30 May 2018
Line 1:		Line 1:
	'''Unreleased structure'''		'''Unreleased structure'''

-	The entry 6dfx is ON HOLD	+	The entry 6dfx is ON HOLD until sometime in the future

	Authors: Wang, Y., Dai, S.		Authors: Wang, Y., Dai, S.
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	Description: human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide		Description: human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide
	[[Category: Unreleased Structures]]		[[Category: Unreleased Structures]]
-	[[Category: Wang, Y]]
	[[Category: Dai, S]]		[[Category: Dai, S]]
		+	[[Category: Wang, Y]]

OCA: Protected "6dfx" [edit=sysop:move=sysop]

OCA — Wed, 23 May 2018 06:04:03 GMT

Protected "6dfx" [edit=sysop:move=sysop]

←Older revision

Revision as of 06:04, 23 May 2018

OCA: New page: '''Unreleased structure''' The entry 6dfx is ON HOLD Authors: Wang, Y., Dai, S. Description: human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide [[Category: Unreleased Struct...

OCA — Wed, 23 May 2018 06:04:01 GMT

New page: '''Unreleased structure''' The entry 6dfx is ON HOLD Authors: Wang, Y., Dai, S. Description: human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide [[Category: Unreleased Struct...

New page

'''Unreleased structure'''

The entry 6dfx is ON HOLD

Authors: Wang, Y., Dai, S.

Description: human diabetogenic TCR T1D3 in complex with DQ8-p8E9E peptide
[[Category: Unreleased Structures]]
[[Category: Wang, Y]]
[[Category: Dai, S]]