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3a79

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Revision as of 11:27, 7 October 2017

Crystal structure of TLR2-TLR6-Pam2CSK4 complex

Structural highlights

3a79 is a 3 chain structure with sequence from Bdellostoma burgeri. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , ,
Related:	3a7b, 3a7c
Gene:	Tlr2 (Bdellostoma burgeri), Tlr6 (Bdellostoma burgeri)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[TLR2_MOUSE] Cooperates with LY96 to mediate the innate immune response to bacterial lipoproteins and other microbial cell wall components. Cooperates with TLR1 or TLR6 to mediate the innate immune response to bacterial lipoproteins or lipopeptides. Acts via MYD88 and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response. May also promote apoptosis in response to lipoproteins (By similarity).^[1] [TLR6_MOUSE] Participates in the innate immune response to Gram-positive bacteria and fungi. Specifically recognizes diacylated and, to a lesser extent, triacylated lipopeptides. Acts via MYD88 and TRAF6, leading to NF-kappa-B activation, cytokine secretion and the inflammatory response. Cooperates with TLR2 for the cellular activation.^[2]

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

Toll-like receptor 2 (TLR2) initiates potent immune responses by recognizing diacylated and triacylated lipopeptides. Its ligand specificity is controlled by whether it heterodimerizes with TLR1 or TLR6. We have determined the crystal structures of TLR2-TLR6-diacylated lipopeptide, TLR2-lipoteichoic acid, and TLR2-PE-DTPA complexes. PE-DTPA, 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine-N-diethylenetriaminepenta acetic acid, is a synthetic phospholipid derivative. Two major factors contribute to the ligand specificity of TLR2-TLR1 or TLR2-TLR6 heterodimers. First, the lipid channel of TLR6 is blocked by two phenylalanines. Simultaneous mutation of these phenylalanines made TLR2-TLR6 fully responsive not only to diacylated but also to triacylated lipopeptides. Second, the hydrophobic dimerization interface of TLR2-TLR6 is increased by 80%, which compensates for the lack of amide lipid interaction between the lipopeptide and TLR2-TLR6. The structures of the TLR2-lipoteichoic acid and the TLR2-PE-DTPA complexes demonstrate that a precise interaction pattern of the head group is essential for a robust immune response by TLR2 heterodimers.

Recognition of lipopeptide patterns by Toll-like receptor 2-Toll-like receptor 6 heterodimer.,Kang JY, Nan X, Jin MS, Youn SJ, Ryu YH, Mah S, Han SH, Lee H, Paik SG, Lee JO Immunity. 2009 Dec 18;31(6):873-84. PMID:19931471^[3]

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

References

↑ Kang JY, Nan X, Jin MS, Youn SJ, Ryu YH, Mah S, Han SH, Lee H, Paik SG, Lee JO. Recognition of lipopeptide patterns by Toll-like receptor 2-Toll-like receptor 6 heterodimer. Immunity. 2009 Dec 18;31(6):873-84. PMID:19931471 doi:10.1016/j.immuni.2009.09.018
↑ Kang JY, Nan X, Jin MS, Youn SJ, Ryu YH, Mah S, Han SH, Lee H, Paik SG, Lee JO. Recognition of lipopeptide patterns by Toll-like receptor 2-Toll-like receptor 6 heterodimer. Immunity. 2009 Dec 18;31(6):873-84. PMID:19931471 doi:10.1016/j.immuni.2009.09.018
↑ Kang JY, Nan X, Jin MS, Youn SJ, Ryu YH, Mah S, Han SH, Lee H, Paik SG, Lee JO. Recognition of lipopeptide patterns by Toll-like receptor 2-Toll-like receptor 6 heterodimer. Immunity. 2009 Dec 18;31(6):873-84. PMID:19931471 doi:10.1016/j.immuni.2009.09.018

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 See Also
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3a79"

@@ Line 1: / Line 1: @@
 ==Crystal structure of TLR2-TLR6-Pam2CSK4 complex==
 <StructureSection load='3a79' size='340' side='right' caption='[[3a79]], [[Resolution|resolution]] 2.90&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3a79]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Bdellostoma_burgeri Bdellostoma burgeri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A79 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3A79 FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=PXS:(2S)-PROPANE-1,2-DIYL+DIHEXADECANOATE'>PXS</scene>, <scene name='pdbligand=NDG:2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE'>NDG</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=NDG:2-(ACETYLAMINO)-2-DEOXY-A-D-GLUCOPYRANOSE'>NDG</scene>, <scene name='pdbligand=PXS:(2S)-PROPANE-1,2-DIYL+DIHEXADECANOATE'>PXS</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3a7b|3a7b]], [[3a7c|3a7c]]</td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Tlr2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7764 Bdellostoma burgeri]), Tlr6 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7764 Bdellostoma burgeri])</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=3a79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a79 OCA], [http://pdbe.org/3a79 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a79 RCSB], [http://www.ebi.ac.uk/pdbsum/3a79 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=3a79 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a79 OCA], [http://pdbe.org/3a79 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3a79 RCSB], [http://www.ebi.ac.uk/pdbsum/3a79 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3a79 ProSAT]</span></td></tr>
 </table>
 == Function ==

3a79

From Proteopedia

Revision as of 11:27, 7 October 2017

Crystal structure of TLR2-TLR6-Pam2CSK4 complex

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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