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Reference - PMID:9125114 - The Schizosaccharomyces pombe gms1+ gene encodes an UDP-galactose transporter homologue required for protein galactosylation.

Reference summary

PubMed ID
PMID:9125114
Title
The Schizosaccharomyces pombe gms1+ gene encodes an UDP-galactose transporter homologue required for protein galactosylation.
Authors
Tabuchi M, Tanaka N, Iwahara S, Takegawa K
Citation
Biochem Biophys Res Commun 1997 Mar 06;232(1):121-5
Publication year
1997
Abstract
In a previous study, we isolated a Schizosaccharomyces pombe mutant defective in protein galactosylation (Takegawa, K., Tanaka, N., Tabuchi, M. and Iwahara, S. (1996) Biosci. Biochem. Biotech. 60, 1156-1159). From an S. pombe genomic library, we cloned the gms1+ gene which restored the galactosylation of cell wall glycoproteins. Gms1 protein shares significant sequence similarity with human UDP-galactose and murine CMP-sialic acid transporters. The fission yeast strains deleted for the gms1+ gene lacked galactose residues in sell surface glycoproteins and were significantly decreased in UDP-galactose transport activity. These results showed that the gms1+ encodes an UDP-galactose transporter, and this protein appears to be an essential role for the incorporation of UDP-galactose into the lumen of Golgi in s. pombe.

Annotation

GO biological process

GO:0072334 - UDP-galactose transmembrane transport

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GO molecular function

GO:0005459 - UDP-galactose transmembrane transporter activity

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Single locus phenotype

FYPO:0003318 - abolished galactose-specific flocculation during vegetative growth

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FYPO:0002118 - decreased transporter activity

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FYPO:0002629 - galactose absent from cell wall

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FYPO:0003291 - galactose absent from glycoprotein glycan

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FYPO:0003319 - increased mannose-specific flocculation

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FYPO:0001357 - normal vegetative cell population growth

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FYPO:0000106 - sensitive to hygromycin B

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FYPO:0003656 - sensitive to vanadate

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