Glycoprotein 2-beta-D-xylosyltransferase: Difference between revisions
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:UDP-D-xylose + N<sub>4</sub>-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D- mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D- glucosaminyl}asparagine <math>\rightleftharpoons</math> UDP + N<sub>4</sub>-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-[beta-D- xylosyl-(1->2)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl- (1->4)-N-acetyl-beta-D-glucosaminyl}asparagine | :UDP-D-xylose + N<sub>4</sub>-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D- mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D- glucosaminyl}asparagine <math>\rightleftharpoons</math> UDP + N<sub>4</sub>-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-[beta-D- xylosyl-(1->2)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl- (1->4)-N-acetyl-beta-D-glucosaminyl}asparagine | ||
The 5 [[substrate (biochemistry)|substrates]] of this enzyme are | The 5 [[substrate (biochemistry)|substrates]] of this enzyme are UDP-D-xylose, [[N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-]], [[acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-]], [[mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-]], and [[glucosaminyl}asparagine]], whereas its 5 [[product (chemistry)|products]] are [[uridine diphosphate|UDP]], [[N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-]], [[acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-[beta-D-]], [[xylosyl-(1->2)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-]], and [[(1->4)-N-acetyl-beta-D-glucosaminyl}asparagine]]. | ||
This enzyme belongs to the family of [[glycosyltransferase]]s, specifically the pentosyltransferases. The systematic name of this enzyme class is '''UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose of N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-a cetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-man nosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glu cosaminyl}asparagine) 2-beta-D-xylosyltransferase'''. Other names in common use include '''beta1,2-xylosyltransferase''', '''UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose''', '''of''', '''4-N-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-''', '''acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-''', '''mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-''', and '''glucosaminyl}asparagine) 2-beta-D-xylosyltransferase'''. This enzyme participates in [[glycan structures - biosynthesis 1]]. | This enzyme belongs to the family of [[glycosyltransferase]]s, specifically the pentosyltransferases. The systematic name of this enzyme class is '''UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose of N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-a cetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-man nosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glu cosaminyl}asparagine) 2-beta-D-xylosyltransferase'''. Other names in common use include '''beta1,2-xylosyltransferase''', '''UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose''', '''of''', '''4-N-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-''', '''acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-''', '''mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-''', and '''glucosaminyl}asparagine) 2-beta-D-xylosyltransferase'''. This enzyme participates in [[glycan structures - biosynthesis 1]]. | ||
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{{GO code links | GO_code=0050513 | name=glycoprotein 2-beta-D-xylosyltransferase}} | {{GO code links | GO_code=0050513 | name=glycoprotein 2-beta-D-xylosyltransferase}} | ||
[[Category:EC 2.4.2]] | [[Category:EC 2.4.2]] | ||
[[Category:Enzymes of unknown structure]] | [[Category:Enzymes of unknown structure]] | ||
{{SIB}} | |||
{{WikiDoc Sources}} | {{WikiDoc Sources}} |
Revision as of 13:36, 15 February 2009
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Overview
In enzymology, a glycoprotein 2-beta-D-xylosyltransferase (EC 2.4.2.38) is an enzyme that catalyzes the chemical reaction
- UDP-D-xylose + N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D- mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D- glucosaminyl}asparagine <math>\rightleftharpoons</math> UDP + N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N- acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-[beta-D- xylosyl-(1->2)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl- (1->4)-N-acetyl-beta-D-glucosaminyl}asparagine
The 5 substrates of this enzyme are UDP-D-xylose, [[N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-]], [[acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-]], [[mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-]], and [[glucosaminyl}asparagine]], whereas its 5 products are UDP, [[N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-]], [[acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-[beta-D-]], [[xylosyl-(1->2)]-beta-D-mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-]], and [[(1->4)-N-acetyl-beta-D-glucosaminyl}asparagine]].
This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose of N4-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-a cetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-man nosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glu cosaminyl}asparagine) 2-beta-D-xylosyltransferase. Other names in common use include beta1,2-xylosyltransferase, UDP-D-xylose:glycoprotein (D-xylose to the 3,6-disubstituted mannose, of, 4-N-{N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-[N-, acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->6)]-beta-D-, mannosyl-(1->4)-N-acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-, and glucosaminyl}asparagine) 2-beta-D-xylosyltransferase. This enzyme participates in glycan structures - biosynthesis 1.
References
- Zeng Y, Bannon G, Thomas VH, Rice K, Drake R, Elbein A (1997). "Purification and specificity of beta1,2-xylosyltransferase, an enzyme that contributes to the allergenicity of some plant proteins". J. Biol. Chem. 272: 31340&ndash, 7. PMID 9395463.
- Steinkellner H (2000). "Molecular cloning and functional expression of beta1, 2-xylosyltransferase cDNA from Arabidopsis thaliana". FEBS. Lett. 472: 105&ndash, 8. PMID 10781814.
External links
- The CAS registry number for this enzyme class is Template:CAS registry.