Glycoprotein 2-beta-D-xylosyltransferase

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glycoprotein 2-beta-D-xylosyltransferase
glycoprotein 2-beta-D-xylosyltransferase
Identifiers
EC no.	2.4.2.38
CAS no.	141256-56-6
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ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
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PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
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Last updated January 24, 2024

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

\rightleftharpoons

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.

Related Research Articles

N4-(beta-N-acetylglucosaminyl)-L-asparaginase (EC 3.5.1.26, aspartylglucosylamine deaspartylase, aspartylglucosylaminase, aspartylglucosaminidase, aspartylglycosylamine amidohydrolase, N-aspartyl-beta-glucosaminidase, glucosylamidase, beta-aspartylglucosylamine amidohydrolase, 4-N-(beta-N-acetyl-D-glucosaminyl)-L-asparagine amidohydrolase) is an enzyme with systematic name N4-(beta-N-acetyl-D-glucosaminyl)-L-asparagine amidohydrolase. This enzyme catalyses the following chemical reaction

The enzyme mannosyl-glycoprotein endo-β-N-acetylglucosaminidase (endoglycosidase H) (EC 3.2.1.96) has systematic name glycopeptide-D-mannosyl-N⁴-(N-acetyl-D-glucosaminyl)2-asparagine 1,4-N-acetyl-β-glucosaminohydrolase. It is a highly specific endoglycosidase which cleaves asparagine-linked mannose rich oligosaccharides, but not highly processed complex oligosaccharides from glycoproteins. It is used for research purposes to deglycosylate glycoproteins and to monitor intracellular protein trafficking through the secretory pathway.

In enzymology, a peptide-N4-(N-acetyl-beta-glucosaminyl)asparagine amidase (EC 3.5.1.52) is an enzyme that catalyzes a chemical reaction that cleaves a N₄-(acetyl-beta-D-glucosaminyl)asparagine residue in which the glucosamine residue may be further glycosylated, to yield a (substituted) N-acetyl-beta-D-glucosaminylamine and a peptide containing an aspartate residue. This enzyme belongs to the family of hydrolases, specifically those acting on carbon-nitrogen bonds other than peptide bonds in linear amides.

In enzymology, a glycoprotein 3-alpha-L-fucosyltransferase (EC 2.4.1.214) is an enzyme that catalyzes the chemical reaction

In enzymology, a glycoprotein 6-alpha-L-fucosyltransferase (EC 2.4.1.68) is an enzyme that catalyzes the chemical reaction

In enzymology, a mannotetraose 2-alpha-N-acetylglucosaminyltransferase is an enzyme that catalyzes the chemical reaction

In enzymology, an UDP-N-acetylglucosamine—lysosomal-enzyme N-acetylglucosaminephosphotransferase is an enzyme that catalyzes the chemical reaction

In enzymology, a protein xylosyltransferase is an enzyme that catalyzes the chemical reaction in which a beta-D-xylosyl residue is transferred from UDP-D-xylose to the sidechain oxygen atom of a serine residue in a protein.

In enzymology, a xyloglucan 6-xylosyltransferase is an enzyme that catalyzes the chemical reaction in which an alpha-D-xylosyl residue is transferred from UDP-D-xylose to a glucose residue in xyloglucan, being attached by an alpha-1,6-D-xylosyl-D-glucose bond.

Alpha-1,3-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:3-(alpha-D-mannosyl)-beta-D-mannosyl-glycoprotein 2-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Alpha-1,6-mannosyl-glycoprotein 2-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:6-(alpha-D-mannosyl)-beta-D-mannosyl-glycoprotein 2-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Beta-1,4-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:beta-D-mannosyl-glycoprotein 4-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:3-(2- -alpha-D-mannosyl)-glycoprotein 4-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Acetylgalactosaminyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase (EC 2.4.1.148 with systematic name UDP-N-acetyl-D-glucosamine:N-acetyl-beta-D-glucosaminyl- -N-acetyl-D-galactosaminyl-R 6-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Alpha-1,6-mannosyl-glycoprotein 6-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:6-(2- -alpha-D-mannosyl)-glycoprotein 6-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Alpha-1,6-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:2,6-bis(N-acetyl-beta-D-glucosaminyl)-alpha-D-mannosyl-glycoprotein 4-beta-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Glucuronyl-galactosyl-proteoglycan 4-alpha-N-acetylglucosaminyltransferase is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:beta-D-glucuronosyl-(1->3)-beta-D-galactosyl-(1->3)-beta-D-galactosyl-(1->4)-beta-D-xylosyl-proteoglycan 4IV-alpha-N-acetyl-D-glucosaminyltransferase. This enzyme catalyses the following chemical reaction

Xylogalacturonan beta-1,3-xylosyltransferase is an enzyme with systematic name UDP-D-xylose:xylogalacturonan 3-beta-D-xylosyltransferase. This enzyme catalyses the following chemical reaction

UDP-D-xylose:beta-D-glucoside alpha-1,3-D-xylosyltransferase is an enzyme with systematic name UDP-alpha-D-xylose:beta-D-glucoside 3-alpha-D-xylosyltransferase. This enzyme catalyses the following chemical reaction

Mannosylglycoprotein endo-beta-mannosidase is an enzyme. This enzyme catalyses the following chemical reaction:

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 (50): 31340–7. doi: 10.1074/jbc.272.50.31340 . PMID 9395463.
Steinkellner H; Mucha, J; Mach, L; Altmann, F; Wilson, IB; Glössl, J; Steinkellner, H (2000). "Molecular cloning and functional expression of beta1, 2-xylosyltransferase cDNA from Arabidopsis thaliana". FEBS Lett. 472 (1): 105–8. doi: 10.1016/S0014-5793(00)01443-5 . PMID 10781814.

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