3rg1: Difference between revisions
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==Crystal structure of the RP105/MD-1 complex== | ==Crystal structure of the RP105/MD-1 complex== | ||
<StructureSection load='3rg1' size='340' side='right' caption='[[3rg1]], [[Resolution|resolution]] 2.91Å' scene=''> | <StructureSection load='3rg1' size='340' side='right'caption='[[3rg1]], [[Resolution|resolution]] 2.91Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3rg1]] is a 16 chain structure with sequence from [ | <table><tr><td colspan='2'>[[3rg1]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Bovin Bovin]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RG1 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RG1 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=PGT:(1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL+STEARATE'>PGT</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=PGT:(1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL+STEARATE'>PGT</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD180 ([ | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">CD180 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN]), LY86 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9913 BOVIN])</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3rg1 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rg1 OCA], [https://pdbe.org/3rg1 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rg1 RCSB], [https://www.ebi.ac.uk/pdbsum/3rg1 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rg1 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bovin]] | [[Category: Bovin]] | ||
[[Category: Large Structures]] | |||
[[Category: Hong, M]] | [[Category: Hong, M]] | ||
[[Category: Wilson, I A]] | [[Category: Wilson, I A]] | ||
Revision as of 09:02, 15 June 2022
Crystal structure of the RP105/MD-1 complexCrystal structure of the RP105/MD-1 complex
Structural highlights
Publication Abstract from PubMedRP105-MD-1 modulates the TLR4-MD-2-mediated, innate immune response against bacterial lipopolysaccharide (LPS). The crystal structure of the bovine 1:1 RP105-MD-1 complex bound to a putative endogenous lipid at 2.9 A resolution shares a similar overall architecture to its homolog TLR4-MD-2 but assembles into an unusual 2:2 homodimer that differs from any other known TLR-ligand assembly. The homodimer is assembled in a head-to-head orientation that juxtaposes the N-terminal leucine-rich repeats (LRRs) of the two RP105 chains, rather than the usual tail-to-tail configuration of C-terminal LRRs in ligand-activated TLR dimers, such as TLR1-TRL2, TLR2-TLR6, TLR3-TLR3 and TLR4-TLR4. Another unusual interaction is mediated by an RP105-specific asparagine-linked glycan, which wedges MD-1 into the co-receptor binding concavity on RP105. This unique mode of assembly represents a new paradigm for TLR complexes and suggests a molecular mechanism for regulating LPS responses. An unusual dimeric structure and assembly for TLR4 regulator RP105-MD-1.,Yoon SI, Hong M, Wilson IA Nat Struct Mol Biol. 2011 Aug 21;18(9):1028-35. doi: 10.1038/nsmb.2106. PMID:21857663[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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