6bnk: Difference between revisions

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<StructureSection load='6bnk' size='340' side='right'caption='[[6bnk]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
<StructureSection load='6bnk' size='340' side='right'caption='[[6bnk]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[6bnk]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human] and [https://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6BNK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6BNK FirstGlance]. <br>
<table><tr><td colspan='2'>[[6bnk]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6BNK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6BNK FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGH:N-{(1S,2R,3S)-1-[(ALPHA-D-GALACTOPYRANOSYLOXY)METHYL]-2,3-DIHYDROXYHEPTADECYL}HEXACOSANAMIDE'>AGH</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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]] 3.2&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Cd1d1, mCG_3074 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), B2m ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10090 LK3 transgenic mice]), B2M, HDCMA22P ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=AGH:N-{(1S,2R,3S)-1-[(ALPHA-D-GALACTOPYRANOSYLOXY)METHYL]-2,3-DIHYDROXYHEPTADECYL}HEXACOSANAMIDE'>AGH</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=6bnk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6bnk OCA], [https://pdbe.org/6bnk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6bnk RCSB], [https://www.ebi.ac.uk/pdbsum/6bnk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6bnk 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=6bnk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6bnk OCA], [https://pdbe.org/6bnk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6bnk RCSB], [https://www.ebi.ac.uk/pdbsum/6bnk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6bnk ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/B2MG_MOUSE B2MG_MOUSE]] Component of the class I major histocompatibility complex (MHC). Involved in the presentation of peptide antigens to the immune system.  
[https://www.uniprot.org/uniprot/CD1D1_MOUSE CD1D1_MOUSE] Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.<ref>PMID:11754812</ref> <ref>PMID:16314439</ref> <ref>PMID:16007091</ref>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Lk3 transgenic mice]]
[[Category: Mus musculus]]
[[Category: Nours, J Le]]
[[Category: Le Nours J]]
[[Category: Rossjohn, J]]
[[Category: Rossjohn J]]
[[Category: Immune system]]
[[Category: Lipids cancer]]

Latest revision as of 17:46, 4 October 2023

Crystal structure of TCR-MHC-like moleculeCrystal structure of TCR-MHC-like molecule

Structural highlights

6bnk is a 8 chain structure with sequence from Homo sapiens and Mus musculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.2Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CD1D1_MOUSE Antigen-presenting protein that binds self and non-self glycolipids and presents them to T-cell receptors on natural killer T-cells.[1] [2] [3]

Publication Abstract from PubMed

Glycosylceramides that activate CD1d-restricted invariant natural killer T (iNKT) cells have potential therapeutic applications for augmenting immune responses against cancer and infections. Previous studies using mouse models identified sphinganine variants of alpha-galactosylceramide as promising iNKT cell activators that stimulate cytokine responses with a strongly proinflammatory bias. However, the activities of sphinganine variants in mice have generally not translated well to studies of human iNKT cell responses. Here, we show that strongly proinflammatory and anti-tumor iNKT cell responses were achieved in mice by a variant of alpha-galactosylceramide that combines a sphinganine base with a hydrocinnamoyl ester on C6 of the sugar. Importantly, the activities observed with this variant were largely preserved for human iNKT cell responses. Structural and in silico modeling studies provided a mechanistic basis for these findings and suggested basic principles for capturing useful properties of sphinganine analogs of synthetic iNKT cell activators in the design of immunotherapeutic agents.

Dual Modifications of alpha-Galactosylceramide Synergize to Promote Activation of Human Invariant Natural Killer T Cells and Stimulate Anti-tumor Immunity.,Chennamadhavuni D, Saavedra-Avila NA, Carreno LJ, Guberman-Pfeffer MJ, Arora P, Yongqing T, Koay HF, Godfrey DI, Keshipeddy S, Richardson SK, Sundararaj S, Lo JH, Wen X, Gascon JA, Yuan W, Rossjohn J, Le Nours J, Porcelli SA, Howell AR Cell Chem Biol. 2018 Mar 9. pii: S2451-9456(18)30073-4. doi:, 10.1016/j.chembiol.2018.02.009. PMID:29576533[4]

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

See Also

References

  1. Jayawardena-Wolf J, Benlagha K, Chiu YH, Mehr R, Bendelac A. CD1d endosomal trafficking is independently regulated by an intrinsic CD1d-encoded tyrosine motif and by the invariant chain. Immunity. 2001 Dec;15(6):897-908. PMID:11754812
  2. Zajonc DM, Maricic I, Wu D, Halder R, Roy K, Wong CH, Kumar V, Wilson IA. Structural basis for CD1d presentation of a sulfatide derived from myelin and its implications for autoimmunity. J Exp Med. 2005 Dec 5;202(11):1517-26. Epub 2005 Nov 28. PMID:16314439 doi:10.1084/jem.20051625
  3. Zajonc DM, Cantu C 3rd, Mattner J, Zhou D, Savage PB, Bendelac A, Wilson IA, Teyton L. Structure and function of a potent agonist for the semi-invariant natural killer T cell receptor. Nat Immunol. 2005 Aug;6(8):810-8. Epub 2005 Jul 10. PMID:16007091 doi:10.1038/ni1224
  4. Chennamadhavuni D, Saavedra-Avila NA, Carreno LJ, Guberman-Pfeffer MJ, Arora P, Yongqing T, Koay HF, Godfrey DI, Keshipeddy S, Richardson SK, Sundararaj S, Lo JH, Wen X, Gascon JA, Yuan W, Rossjohn J, Le Nours J, Porcelli SA, Howell AR. Dual Modifications of alpha-Galactosylceramide Synergize to Promote Activation of Human Invariant Natural Killer T Cells and Stimulate Anti-tumor Immunity. Cell Chem Biol. 2018 Mar 9. pii: S2451-9456(18)30073-4. doi:, 10.1016/j.chembiol.2018.02.009. PMID:29576533 doi:http://dx.doi.org/10.1016/j.chembiol.2018.02.009

6bnk, resolution 3.20Å

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