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Literature summary for 2.4.1.B80 extracted from

  • Inamori, K.; Yoshida-Moriguchi,T.; Hara, Y.; Anderson, M.E.; Yu, L.; Campbell, K.P.
    Dystroglycan function requires xylosyl- and glucuronyltransferase activities of LARGE (2012), Science, 335, 93-96 .
    View publication on PubMedView publication on EuropePMC

Cloned(Commentary)

Cloned (Comment) Organism
expression in HEK-293 cell Homo sapiens

Protein Variants

Protein Variants Comment Organism
D242N/D244N glucuronyltransferase activity is comparable to that in wild type, whereas xylosyltransferase activity is undetectable Homo sapiens
D563N/D565N glucuronyltransferase activity is comparable to that in wild type, whereas xylosyltransferase activity is undetectable Homo sapiens

Organism

Organism UniProt Comment Textmining
Homo sapiens O95461 bifunctional glycosyltransferase, with both xylosyltransferase and glucuronyltransferase activities
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
UDP-alpha-D-glucuronate + 4-nitrophenyl alpha-D-xyloside glucuronosyltransferase activity of the bifunctional enzyme Homo sapiens UDP + 4-nitrophenyl beta-D-glucuronyl-(1->3)-alpha-D-xyloside
-
?
UDP-alpha-D-xylose + 4-methylumbelliferyl beta-D-glucuronate xylosyltransferase activity of the bifunctional enzyme Homo sapiens UDP + 4-methylumbelliferyl alpha-D-xylosyl-(1->3)-beta-D-glucuronate
-
?

Synonyms

Synonyms Comment Organism
LARGE1
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Homo sapiens
like-acetylglucosaminyltransferase
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Homo sapiens

General Information

General Information Comment Organism
physiological function enzyme acts as a bifunctional glycosyltransferase, with both xylosyltransferase and glucuronyltransferase activities, producing repeating units of [3-alpha-D-xylosyl-(1->3)-beta-D-glucuronyl-1-]. LARGE synthesizes the polymer on the O-mannosyl glycan of alpha-dystroglycan in vivo. The LARGE-synthesized, negatively charged glycan on alpha-dystroglycan likely binds to laminin through electrostatic associations with these basic patches Homo sapiens