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==HUMAN ASPARTYLGLUCOSAMINIDASE==
==HUMAN ASPARTYLGLUCOSAMINIDASE==
<StructureSection load='1apy' size='340' side='right' caption='[[1apy]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
<StructureSection load='1apy' size='340' side='right'caption='[[1apy]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1apy]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1APY OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1APY FirstGlance]. <br>
<table><tr><td colspan='2'>[[1apy]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1APY OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1APY FirstGlance]. <br>
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene><br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2&#8491;</td></tr>
<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/N(4)-(beta-N-acetylglucosaminyl)-L-asparaginase N(4)-(beta-N-acetylglucosaminyl)-L-asparaginase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.5.1.26 3.5.1.26] </span></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=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1apy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1apy OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1apy RCSB], [http://www.ebi.ac.uk/pdbsum/1apy PDBsum]</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=1apy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1apy OCA], [https://pdbe.org/1apy PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1apy RCSB], [https://www.ebi.ac.uk/pdbsum/1apy PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1apy ProSAT]</span></td></tr>
<table>
</table>
== Disease ==
== Disease ==
[[http://www.uniprot.org/uniprot/ASPG_HUMAN ASPG_HUMAN]] Defects in AGA are the cause of aspartylglucosaminuria (AGU) [MIM:[http://omim.org/entry/208400 208400]]. AGU is an inborn lysosomal storage disease. Clinical features of AGU include mild to severe mental retardation manifesting from the age of 2, coarse facial features and mild connective tissue abnormalities. This recessively inherited disease is overrepresented in the Finnish population.<ref>PMID:1703489</ref> <ref>PMID:1904874</ref> <ref>PMID:2011603</ref> <ref>PMID:8776587</ref> <ref>PMID:9137882</ref> <ref>PMID:11309371</ref>
[https://www.uniprot.org/uniprot/ASPG_HUMAN ASPG_HUMAN] Defects in AGA are the cause of aspartylglucosaminuria (AGU) [MIM:[https://omim.org/entry/208400 208400]. AGU is an inborn lysosomal storage disease. Clinical features of AGU include mild to severe mental retardation manifesting from the age of 2, coarse facial features and mild connective tissue abnormalities. This recessively inherited disease is overrepresented in the Finnish population.<ref>PMID:1703489</ref> <ref>PMID:1904874</ref> <ref>PMID:2011603</ref> <ref>PMID:8776587</ref> <ref>PMID:9137882</ref> <ref>PMID:11309371</ref>  
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/ASPG_HUMAN ASPG_HUMAN]] Cleaves the GlcNAc-Asn bond which joins oligosaccharides to the peptide of asparagine-linked glycoproteins.  
[https://www.uniprot.org/uniprot/ASPG_HUMAN ASPG_HUMAN] Cleaves the GlcNAc-Asn bond which joins oligosaccharides to the peptide of asparagine-linked glycoproteins.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
   <jmolCheckbox>
   <jmolCheckbox>
     <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ap/1apy_consurf.spt"</scriptWhenChecked>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ap/1apy_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
   </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1apy ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
<div class="pdbe-citations 1apy" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
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</StructureSection>
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
[[Category: Oinonen, C.]]
[[Category: Large Structures]]
[[Category: Rouvinen, J.]]
[[Category: Oinonen C]]
[[Category: Aspartylglucosaminidase]]
[[Category: Rouvinen J]]
[[Category: Glycosylasparaginase]]
[[Category: Hydrolase]]

Latest revision as of 10:11, 9 October 2024

HUMAN ASPARTYLGLUCOSAMINIDASEHUMAN ASPARTYLGLUCOSAMINIDASE

Structural highlights

1apy is a 4 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 2Å
Ligands:,
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

ASPG_HUMAN Defects in AGA are the cause of aspartylglucosaminuria (AGU) [MIM:208400. AGU is an inborn lysosomal storage disease. Clinical features of AGU include mild to severe mental retardation manifesting from the age of 2, coarse facial features and mild connective tissue abnormalities. This recessively inherited disease is overrepresented in the Finnish population.[1] [2] [3] [4] [5] [6]

Function

ASPG_HUMAN Cleaves the GlcNAc-Asn bond which joins oligosaccharides to the peptide of asparagine-linked glycoproteins.

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 PubMed

The high resolution crystal structure of human lysosomal aspartylglucosaminidase (AGA) has been determined. This lysosomal enzyme is synthesized as a single polypeptide precursor, which is immediately post-translationally cleaved into alpha- and beta-subunits. Two alpha- and beta-chains are found to pack together forming the final heterotetrameric structure. The catalytically essential residue, the N-terminal threonine of the beta-chain is situated in the deep pocket of the funnel-shaped active site. On the basis of the structure of the enzyme-product complex we present a catalytic mechanism for this lysosomal enzyme with an exceptionally high pH optimum. The three-dimensional structure also allows the prediction of the structural consequences of human mutations resulting in aspartylglucosaminuria (AGU), a lysosomal storage disease.

Three-dimensional structure of human lysosomal aspartylglucosaminidase.,Oinonen C, Tikkanen R, Rouvinen J, Peltonen L Nat Struct Biol. 1995 Dec;2(12):1102-8. PMID:8846222[7]

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

See Also

References

  1. ↑ Ikonen E, Baumann M, Gron K, Syvanen AC, Enomaa N, Halila R, Aula P, Peltonen L. Aspartylglucosaminuria: cDNA encoding human aspartylglucosaminidase and the missense mutation causing the disease. EMBO J. 1991 Jan;10(1):51-8. PMID:1703489
  2. ↑ Fisher KJ, Aronson NN Jr. Characterization of the mutation responsible for aspartylglucosaminuria in three Finnish patients. Amino acid substitution Cys163----Ser abolishes the activity of lysosomal glycosylasparaginase and its conversion into subunits. J Biol Chem. 1991 Jun 25;266(18):12105-13. PMID:1904874
  3. ↑ Mononen I, Heisterkamp N, Kaartinen V, Williams JC, Yates JR 3rd, Griffin PR, Hood LE, Groffen J. Aspartylglycosaminuria in the Finnish population: identification of two point mutations in the heavy chain of glycoasparaginase. Proc Natl Acad Sci U S A. 1991 Apr 1;88(7):2941-5. PMID:2011603
  4. ↑ Peltola M, Tikkanen R, Peltonen L, Jalanko A. Ser72Pro active-site disease mutation in human lysosomal aspartylglucosaminidase: abnormal intracellular processing and evidence for extracellular activation. Hum Mol Genet. 1996 Jun;5(6):737-43. PMID:8776587
  5. ↑ Laitinen A, Hietala M, Haworth JC, Schroeder ML, Seargeant LE, Greenberg CR, Aula P. Two novel mutations in a Canadian family with aspartylglucosaminuria and early outcome post bone marrow transplantation. Clin Genet. 1997 Mar;51(3):174-8. PMID:9137882
  6. ↑ Saarela J, Laine M, Oinonen C, von Schantz C, Jalanko A, Rouvinen J, Peltonen L. Molecular pathogenesis of a disease: structural consequences of aspartylglucosaminuria mutations. Hum Mol Genet. 2001 Apr 15;10(9):983-95. PMID:11309371
  7. ↑ Oinonen C, Tikkanen R, Rouvinen J, Peltonen L. Three-dimensional structure of human lysosomal aspartylglucosaminidase. Nat Struct Biol. 1995 Dec;2(12):1102-8. PMID:8846222

1apy, resolution 2.00Å

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