2zhm: Difference between revisions
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==Crystal structure of human galectin-9 N-terminal CRD in complex with N-acetyllactosamine trimer (crystal 1)== | ==Crystal structure of human galectin-9 N-terminal CRD in complex with N-acetyllactosamine trimer (crystal 1)== | ||
<StructureSection load='2zhm' size='340' side='right' caption='[[2zhm]], [[Resolution|resolution]] 1.84Å' scene=''> | <StructureSection load='2zhm' size='340' side='right' caption='[[2zhm]], [[Resolution|resolution]] 1.84Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2zhm]] is a 4 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=2ZHM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZHM FirstGlance]. <br> | <table><tr><td colspan='2'>[[2zhm]] is a 4 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=2ZHM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2ZHM FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand= | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GAL:BETA-D-GALACTOSE'>GAL</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=RPN:(R)-1-PARA-NITRO-PHENYL-2-AZIDO-ETHANOL'>RPN</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2zhk|2zhk]], [[2zhl|2zhl]], [[2zhn|2zhn]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2zhk|2zhk]], [[2zhl|2zhl]], [[2zhn|2zhn]]</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=2zhm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zhm OCA], [http://pdbe.org/2zhm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zhm RCSB], [http://www.ebi.ac.uk/pdbsum/2zhm 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=2zhm FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2zhm OCA], [http://pdbe.org/2zhm PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2zhm RCSB], [http://www.ebi.ac.uk/pdbsum/2zhm PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2zhm ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zh/2zhm_consurf.spt"</scriptWhenChecked> | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zh/2zhm_consurf.spt"</scriptWhenChecked> | ||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
Revision as of 09:54, 18 October 2018
Crystal structure of human galectin-9 N-terminal CRD in complex with N-acetyllactosamine trimer (crystal 1)Crystal structure of human galectin-9 N-terminal CRD in complex with N-acetyllactosamine trimer (crystal 1)
Structural highlights
Function[LEG9_HUMAN] Binds galactosides. Has high affinity for the Forssman pentasaccharide. May play a role in thymocyte-epithelial interactions relevant to the biology of the thymus. Inhibits cell proliferation. It is a ligand for HAVCR2/TIM3. Induces T-helper type 1 lymphocyte (Th1) death. Isoform Short acts as an eosinophil chemoattractant.[1] [2] [3] 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 PubMedGalectins are a family of beta-galactoside-specific lectins bearing a conserved carbohydrate recognition domain. Interactions between galectins and poly-N-acetyllactosamine sequences are critical in a variety of biological processes. Galectin-9, a member of the galectin family, has two carbohydrate recognition domains at both the N- and C-terminal regions. Here we report the crystal structure of the human galectin-9 N-terminal carbohydrate recognition domain in complex with N-acetyllactosamine dimers and trimers. These complex structures revealed that the galectin-9 N-terminal carbohydrate recognition domain can recognize internal N-acetyllactosamine units within poly-N-acetyllactosamine chains. Based on these complex structures, we propose two putative recognition modes for poly-N-acetyllactosamine binding by galectins. Structural analysis of the recognition mechanism of poly-N-acetyllactosamine by the human galectin-9 N-terminal carbohydrate recognition domain.,Nagae M, Nishi N, Murata T, Usui T, Nakamura T, Wakatsuki S, Kato R Glycobiology. 2009 Feb;19(2):112-7. Epub 2008 Oct 31. PMID:18977853[4] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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