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Reference - PMID:11015724 - Schizosaccharomyces pombe gmd3(+)/alg11(+) is a functional homologue of Saccharomyces cerevisiae ALG11 which is involved in N-linked oligosaccharide synthesis.

Reference summary

PubMed ID
PMID:11015724
Title
Schizosaccharomyces pombe gmd3(+)/alg11(+) is a functional homologue of Saccharomyces cerevisiae ALG11 which is involved in N-linked oligosaccharide synthesis.
Authors
Umeda K, Yoko-o T, Nakayama K, Suzuki T, Jigami Y
Citation
Yeast 2000 Oct;16(14):1261-71
Publication year
2000
Abstract
The oligosaccharide of glycoproteins in the fission yeast Schizosaccharomyces pombe is unique in containing galactose. We isolated four mutants that had reduced amounts of galactose residues on their cell surface glycoproteins by fluorescence-activated cell sorter. The isolated four recessive mutants, gmd1 to gmd4, showed a defect in glycosylation of acid phosphatase, a cell surface glycoprotein. In gmd3 mutant cells, the amounts of both mannose and galactose residues were decreased on the cell surface galactomannoproteins, suggesting an underglycosylation of galactomannoproteins. The gmd3(+) gene encodes a protein that has significant similarity with Saccharomyces cerevisiae Alg11p and is likely to be involved in N-linked core oligosaccharide synthesis. ALG11 suppressed the gmd3 mutation, indicating that gmd3(+) gene is a functional homologue of the ALG11 gene. We therefore designated gmd3(+) as alg11(+).

Annotation

Complementation

PBO:0005014 - functionally complemented by S. cerevisiae ALG11

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GO biological process

GO:0006488 - dolichol-linked oligosaccharide biosynthetic process

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GO cellular component

GO:0005789 - endoplasmic reticulum membrane

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GO molecular function

GO:0004377 - GDP-Man:Man(3)GlcNAc(2)-PP-Dol alpha-1,2-mannosyltransferase activity

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Single locus phenotype

FYPO:0003354 - decreased galactose level in glycoprotein glycan

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Genotypes:

FYPO:0004941 - decreased mannose level in glycoprotein glycan

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Genotypes:

FYPO:0001355 - decreased vegetative cell population growth

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FYPO:0001489 - inviable vegetative cell

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FYPO:0002061 - inviable vegetative cell population

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Genotypes:

FYPO:0004942 - normal galactose:mannose ratio in glycoprotein glycan

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FYPO:0000961 - normal growth on sorbitol

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Genotypes:

FYPO:0000106 - sensitive to hygromycin B

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Genotypes:

FYPO:0003656 - sensitive to vanadate

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Genotypes: