2ydq: Difference between revisions
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==CpOGA D298N in complex with hOGA-derived O-GlcNAc peptide== | ==CpOGA D298N in complex with hOGA-derived O-GlcNAc peptide== | ||
<StructureSection load='2ydq' size='340' side='right' caption='[[2ydq]], [[Resolution|resolution]] 2.60Å' scene=''> | <StructureSection load='2ydq' size='340' side='right' caption='[[2ydq]], [[Resolution|resolution]] 2.60Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2ydq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[2ydq]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_perfringens"_veillon_and_zuber_1898 "bacillus perfringens" veillon and zuber 1898]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YDQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2YDQ FirstGlance]. <br> | ||
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CD:CADMIUM+ION'>CD</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"><scene name='pdbligand=CD:CADMIUM+ION'>CD</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">[[2cbi|2cbi]], [[2vur|2vur]], [[2x0y|2x0y]], [[2xpk|2xpk]], [[2j62|2j62]], [[2jh2|2jh2]], [[2wb5|2wb5]], [[2v5c|2v5c]], [[2cbj|2cbj]], [[2v5d|2v5d]], [[2yds|2yds]], [[2ydr|2ydr]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2cbi|2cbi]], [[2vur|2vur]], [[2x0y|2x0y]], [[2xpk|2xpk]], [[2j62|2j62]], [[2jh2|2jh2]], [[2wb5|2wb5]], [[2v5c|2v5c]], [[2cbj|2cbj]], [[2v5d|2v5d]], [[2yds|2yds]], [[2ydr|2ydr]]</td></tr> | ||
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-N-acetylhexosaminidase Beta-N-acetylhexosaminidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.52 3.2.1.52] </span></td></tr> | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Beta-N-acetylhexosaminidase Beta-N-acetylhexosaminidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.52 3.2.1.52] </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=2ydq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ydq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2ydq RCSB], [http://www.ebi.ac.uk/pdbsum/2ydq 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=2ydq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ydq OCA], [http://pdbe.org/2ydq PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=2ydq RCSB], [http://www.ebi.ac.uk/pdbsum/2ydq PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=2ydq ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
</div> | </div> | ||
<div class="pdbe-citations 2ydq" style="background-color:#fffaf0;"></div> | |||
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Bacillus perfringens veillon and zuber 1898]] | |||
[[Category: Beta-N-acetylhexosaminidase]] | [[Category: Beta-N-acetylhexosaminidase]] | ||
[[Category: Aalten, D M.F Van]] | [[Category: Aalten, D M.F Van]] | ||
[[Category: Borodkin, V S]] | [[Category: Borodkin, V S]] | ||
Revision as of 16:41, 5 August 2016
CpOGA D298N in complex with hOGA-derived O-GlcNAc peptideCpOGA D298N in complex with hOGA-derived O-GlcNAc peptide
Structural highlights
Function[OGA_CLOP1] Biological function unknown. Capable of hydrolyzing the glycosidic link of O-GlcNAcylated proteins. [NCOAT_HUMAN] Cleaves GlcNAc but not GalNAc from glycopeptides. Can use p-nitrophenyl-beta-GlcNAc as substrate but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc. Possesses hyaluronidase activity. Acetylates 'Lys-8' of histone H4 and 'Lys-14' of histone H3.[1] [2] Publication Abstract from PubMedProtein O-GlcNAcylation is an essential reversible posttranslational modification in higher eukaryotes. O-GlcNAc addition and removal is catalyzed by O-GlcNAc transferase and O-GlcNAcase, respectively. We report the molecular details of the interaction of a bacterial O-GlcNAcase homolog with three different synthetic glycopeptides derived from characterized O-GlcNAc sites in the human proteome. Strikingly, the peptides bind a conserved O-GlcNAcase substrate binding groove with similar orientation and conformation. In addition to extensive contacts with the sugar, O-GlcNAcase recognizes the peptide backbone through hydrophobic interactions and intramolecular hydrogen bonds, while avoiding interactions with the glycopeptide side chains. These findings elucidate the molecular basis of O-GlcNAcase substrate specificity, explaining how a single enzyme achieves cycling of the complete O-GlcNAc proteome. In addition, this work will aid development of O-GlcNAcase inhibitors that target the peptide binding site. Synergy of Peptide and Sugar in O-GlcNAcase Substrate Recognition.,Schimpl M, Borodkin VS, Gray LJ, van Aalten DM Chem Biol. 2012 Feb 24;19(2):173-8. PMID:22365600[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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