1apy: Difference between revisions

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{{STRUCTURE_1apy|  PDB=1apy  |  SCENE=  }}  
{{STRUCTURE_1apy|  PDB=1apy  |  SCENE=  }}  


'''HUMAN ASPARTYLGLUCOSAMINIDASE'''
===HUMAN ASPARTYLGLUCOSAMINIDASE===




==Overview==
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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.
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==About this Structure==
==About this Structure==
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[[Category: Glycosylasparaginase]]
[[Category: Glycosylasparaginase]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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Revision as of 17:22, 30 June 2008

File:1apy.png

Template:STRUCTURE 1apy

HUMAN ASPARTYLGLUCOSAMINIDASEHUMAN ASPARTYLGLUCOSAMINIDASE

Template:ABSTRACT PUBMED 8846222

About this StructureAbout this Structure

1APY is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

ReferenceReference

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

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