Glycosylasparaginase

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== Function ==
== Function ==
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'''Glycosylasparaginase''' or '''aspartylglucosaminidase''' (AGA) hydrolyzes a number of β-aspartyl amides including asparagine. AGA contains α and β subunits which derive from a precursor (PAGA) which is cleaved post-translationally. Mammalian AGA substrate is the protein-sugar bond of Asn-GlcNac<ref>PMID:12906830</ref>.
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'''Glycosylasparaginase''' or '''aspartylglucosaminidase''' (AGA) hydrolyzes a number of β-aspartyl amides including asparagine. AGA contains α and β subunits which derive from a precursor (PAGA) which is cleaved post-translationally<ref>PMID:12906830</ref>.
== Disease ==
== Disease ==
AGA deficiency is the cause of the human lysosomal disease aspartylglycosaminuria<ref>PMID:1301945</ref>.
AGA deficiency is the cause of the human lysosomal disease aspartylglycosaminuria<ref>PMID:1301945</ref>.
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== Relevance ==
 
== Structural highlights ==
== Structural highlights ==
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Mammalian AGA substrate is the protein-sugar bond of Asn-GlcNac<ref>PMID:17157318</ref>.
</StructureSection>
</StructureSection>

Revision as of 10:34, 14 March 2016

Structure of glycosylated human glycosylasparaginase α (grey and pink) and β (green and yellow) subunits complex with asparagine (PDB code 2gl9).

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3D structures of glycosylasparaginase

Updated on 14-March-2016

References

  1. Qian X, Guan C, Guo HC. A dual role for an aspartic acid in glycosylasparaginase autoproteolysis. Structure. 2003 Aug;11(8):997-1003. PMID:12906830
  2. Ikonen E, Peltonen L. Mutations causing aspartylglucosaminuria (AGU): a lysosomal accumulation disease. Hum Mutat. 1992;1(5):361-5. PMID:1301945 doi:http://dx.doi.org/10.1002/humu.1380010503
  3. Wang Y, Guo HC. Crystallographic snapshot of a productive glycosylasparaginase-substrate complex. J Mol Biol. 2007 Feb 9;366(1):82-92. Epub 2006 Sep 26. PMID:17157318 doi:10.1016/j.jmb.2006.09.051

Proteopedia Page Contributors and Editors (what is this?)

Michal Harel, Alexander Berchansky

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