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Literature summary extracted from

  • Cipollo, J.F.; Trimble, R.B.
    The accumulation of Man6GlcNAc2-PP-dolichol in the Saccharomyces cerevisiae deltaalg9 mutant reveals a regulatory role for the Alg3p alpha1,3-Man middle-arm addition in downstream oligosaccharide-lipid and glycoprotein glycan processing (2000), J. Biol. Chem., 275, 4267-4277.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.4.1.258 alg3 encodes enzyme responsible for the alpha-1,3-Man middle-arm addition, MNN1 encoded enzyme adds at least the penultimate alpha-1,3-linked Man of the terminal Manalpha(1-3)Manalpha(1-3)-disaccharide on O-linked glycans Saccharomyces cerevisiae

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.4.1.258 dolichyl beta-D-mannosyl phosphate + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol Saccharomyces cerevisiae regulatory role for the Alg3p-dependent alpha1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation. The presence of this Man appears to provide structural information potentiating the downstream action of the endoplasmic reticulum glucosyltransferases Alg6p, Alg8p and Alg10p, glucosidases Gls1p and Gls2p, and the Golgi Och1p outerchain alpha1,6-Man branch-initiating mannosyltransferase D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->3)-D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol + dolichyl phosphate
-
 ?
2.4.1.258 additional information Saccharomyces cerevisiae regulatory role for the Alg3p-dependent alpha-1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation, it provides structural information that potentiates the Alg6p, Alg8p and Alg10p ER glucosyltransferases and Gls1p and Gls2p trimming glucosidases ?
-
 ?
2.4.1.258 additional information Saccharomyces cerevisiae A regulatory role for the Alg3p-dependent alpha-1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation, it provides structural information that potentiates the Alg6p, Alg8p and Alg10p ER glucosyltransferases and Gls1p and Gls2p trimming glucosidases ?
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
2.4.1.258 Saccharomyces cerevisiae
-
-
-
2.4.1.258 Saccharomyces cerevisiae P38179 A
-
2.4.1.258 Saccharomyces cerevisiae P38179 haploid strain yg414, Alg3p and MNN1
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2.4.1.258 Saccharomyces cerevisiae A P38179 A
-
2.4.1.259 Saccharomyces cerevisiae P53868
-
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.4.1.258 dolichyl beta-D-mannosyl phosphate + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol
-
 Saccharomyces cerevisiae D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->3)-D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol + dolichyl phosphate
-
 ?
2.4.1.258 dolichyl beta-D-mannosyl phosphate + D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol regulatory role for the Alg3p-dependent alpha1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation. The presence of this Man appears to provide structural information potentiating the downstream action of the endoplasmic reticulum glucosyltransferases Alg6p, Alg8p and Alg10p, glucosidases Gls1p and Gls2p, and the Golgi Och1p outerchain alpha1,6-Man branch-initiating mannosyltransferase Saccharomyces cerevisiae D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->3)-D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol + dolichyl phosphate
-
 ?
2.4.1.258 GDP-alpha-D-mannose + Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)(Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-PP-dolichol cytosolic alg3 Man5GlcNAc2 precursor Saccharomyces cerevisiae GDP + Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)(Manalpha(1-3)Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-PP-dolichol product of the Alg3p step ?
2.4.1.258 GDP-alpha-D-mannose + Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)(Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-PP-dolichol cytosolic alg3 Man5GlcNAc2 precursor Saccharomyces cerevisiae A GDP + Manalpha(1-2)Manalpha(1-2)Manalpha(1-3)(Manalpha(1-3)Manalpha(1-6))Manbeta(1-4)GlcNAcbeta(1-4)GlcNAc-PP-dolichol product of the Alg3p step ?
2.4.1.258 additional information MNN1 encoded enzyme adds at least the penultimate alpha-1,3-linked Man of the terminal Manalpha(1-3)Manalpha(1-3)-disaccharide on O-linked glycans Saccharomyces cerevisiae ?
-
 ?
2.4.1.258 additional information regulatory role for the Alg3p-dependent alpha-1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation, it provides structural information that potentiates the Alg6p, Alg8p and Alg10p ER glucosyltransferases and Gls1p and Gls2p trimming glucosidases Saccharomyces cerevisiae ?
-
 ?
2.4.1.258 additional information MNN1 encoded enzyme adds at least the penultimate alpha-1,3-linked Man of the terminal Manalpha(1-3)Manalpha(1-3)-disaccharide on O-linked glycans Saccharomyces cerevisiae A ?
-
 ?
2.4.1.258 additional information regulatory role for the Alg3p-dependent alpha-1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation, it provides structural information that potentiates the Alg6p, Alg8p and Alg10p ER glucosyltransferases and Gls1p and Gls2p trimming glucosidases Saccharomyces cerevisiae A ?
-
 ?

Synonyms

EC Number Synonyms Comment Organism
2.4.1.258 Alg3p
-
 Saccharomyces cerevisiae
2.4.1.259 ALG9
-
 Saccharomyces cerevisiae

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
2.4.1.258 27
-
 assay at Saccharomyces cerevisiae

General Information

EC Number General Information Comment Organism
2.4.1.258 physiological function regulatory role for the Alg3p-dependent alpha1,3-linked Man in subsequent oligosaccharide-lipid and glycoprotein glycan maturation. The presence of this Man appears to provide structural information potentiating the downstream action of the endoplasmic reticulum glucosyltransferases Alg6p, Alg8p and Alg10p, glucosidases Gls1p and Gls2p, and the Golgi Och1p outerchain alpha1,6-Man branch-initiating mannosyltransferase Saccharomyces cerevisiae
2.4.1.259 malfunction accumulation of D-Man-alpha-(1->2)-D-Man-alpha-(1->2)-D-Man-alpha-(1->3)-[D-Man-alpha-(1->3)-D-Man-alpha-(1->6)]-D-Man-beta-(1->4)-D-GlcNAc-beta-(1->4)-D-GlcNAc-diphosphodolichol in Saccharomyces cerevisiae DELTAalg9 mutant Saccharomyces cerevisiae