5uhp: Difference between revisions

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'''Unreleased structure'''


The entry 5uhp is ON HOLD until Paper Publication
==Crystal structure of the core catalytic domain of human O-GlcNAcase==
 
<StructureSection load='5uhp' size='340' side='right' caption='[[5uhp]], [[Resolution|resolution]] 2.79&Aring;' scene=''>
Authors:  
== Structural highlights ==
 
<table><tr><td colspan='2'>[[5uhp]] is a 8 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5UHP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5UHP FirstGlance]. <br>
Description:  
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GOL:GLYCEROL'>GOL</scene></td></tr>
[[Category: Unreleased Structures]]
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5uho|5uho]], [[5uhl|5uhl]], [[5uhk|5uhk]]</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=5uhp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5uhp OCA], [http://pdbe.org/5uhp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5uhp RCSB], [http://www.ebi.ac.uk/pdbsum/5uhp PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5uhp ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/OGA_HUMAN OGA_HUMAN]] Isoform 1: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc and 4-methylumbelliferone-GlcNAc as substrates but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro) (PubMed:11148210). Does not bind acetyl-CoA and does not have histone acetyltransferase activity (PubMed:24088714).<ref>PMID:11148210</ref> <ref>PMID:11788610</ref> <ref>PMID:20673219</ref> <ref>PMID:22365600</ref> <ref>PMID:24088714</ref>  Isoform 3: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc as substrate but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro), but has about six times lower specific activity than isoform 1.<ref>PMID:20673219</ref>  
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Elsen, N L]]
[[Category: Klein, D J]]
[[Category: Enzyme]]
[[Category: Gh84]]
[[Category: Hydrolase]]
[[Category: O-glcnacase]]

Revision as of 17:05, 29 March 2017

Crystal structure of the core catalytic domain of human O-GlcNAcaseCrystal structure of the core catalytic domain of human O-GlcNAcase

Structural highlights

5uhp is a 8 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[OGA_HUMAN] Isoform 1: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc and 4-methylumbelliferone-GlcNAc as substrates but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro) (PubMed:11148210). Does not bind acetyl-CoA and does not have histone acetyltransferase activity (PubMed:24088714).[1] [2] [3] [4] [5] Isoform 3: Cleaves GlcNAc but not GalNAc from O-glycosylated proteins. Can use p-nitrophenyl-beta-GlcNAc as substrate but not p-nitrophenyl-beta-GalNAc or p-nitrophenyl-alpha-GlcNAc (in vitro), but has about six times lower specific activity than isoform 1.[6]

References

  1. Gao Y, Wells L, Comer FI, Parker GJ, Hart GW. Dynamic O-glycosylation of nuclear and cytosolic proteins: cloning and characterization of a neutral, cytosolic beta-N-acetylglucosaminidase from human brain. J Biol Chem. 2001 Mar 30;276(13):9838-45. Epub 2001 Jan 8. PMID:11148210 doi:http://dx.doi.org/10.1074/jbc.M010420200
  2. Wells L, Gao Y, Mahoney JA, Vosseller K, Chen C, Rosen A, Hart GW. Dynamic O-glycosylation of nuclear and cytosolic proteins: further characterization of the nucleocytoplasmic beta-N-acetylglucosaminidase, O-GlcNAcase. J Biol Chem. 2002 Jan 18;277(3):1755-61. PMID:11788610
  3. Li J, Huang CL, Zhang LW, Lin L, Li ZH, Zhang FW, Wang P. Isoforms of human O-GlcNAcase show distinct catalytic efficiencies. Biochemistry (Mosc). 2010 Jul;75(7):938-43. PMID:20673219
  4. Schimpl M, Borodkin VS, Gray LJ, van Aalten DM. Synergy of Peptide and Sugar in O-GlcNAcase Substrate Recognition. Chem Biol. 2012 Feb 24;19(2):173-8. PMID:22365600 doi:10.1016/j.chembiol.2012.01.011
  5. Rao FV, Schuttelkopf AW, Dorfmueller HC, Ferenbach AT, Navratilova I, van Aalten DM. Structure of a bacterial putative acetyltransferase defines the fold of the human O-GlcNAcase C-terminal domain. Open Biol. 2013 Oct 2;3(10):130021. PMID:24088714 doi:http://dx.doi.org/10.1098/rsob.130021
  6. Li J, Huang CL, Zhang LW, Lin L, Li ZH, Zhang FW, Wang P. Isoforms of human O-GlcNAcase show distinct catalytic efficiencies. Biochemistry (Mosc). 2010 Jul;75(7):938-43. PMID:20673219

5uhp, resolution 2.79Å

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