Yeast KRE2 defines a new gene family encoding probable secretory proteins, and is required for the correct N-glycosylation of proteins

K. Hill, C. Boone, Mark Goebl, R. Puccia, A. M. Sdicu, H. Bussey

Research output: Contribution to journalArticle

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Abstract

We have cloned, sequenced and disrupted the KRE2 gene of Saccharomyces cerevisiae, identified by killer-resistant mutants with a defective cell wall receptor for the toxin. The KRE2 gene is close to PHO8 on chromosome 4, and encodes a predicted 49-kD protein, Kre2p, that probably enters the secretory pathway. Haploid cells carrying a disruption of the KRE2 locus grow more slowly than wildtype cells at 30°, and fail to grow at 37°. At 30°, kre2 mutants showed altered N-linked glycosylation of proteins, as the average size of N-linked outer chains was reduced. We identified two other genes, YUR1 on chromosome 10, and KTR1 on chromosome 15, whose predicted products share 36% identity with Kre2p over more than 300 amino acid residues. Yur1p has an N-terminal signal sequence like Kre2p, while Ktr1p has a predicted topology consistent with a type 2 membrane protein. In all cases the conserved regions of these proteins appear to be on the lumenal side of secretory compartments, suggesting related function. KRE2, KTR1 and YUR1 define a new yeast gene family.

Original languageEnglish (US)
Pages (from-to)273-283
Number of pages11
JournalGenetics
Volume130
Issue number2
StatePublished - 1992
Externally publishedYes

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Glycosylation
Yeasts
Genes
Proteins
Chromosomes, Human, Pair 15
Chromosomes, Human, Pair 10
Chromosomes, Human, Pair 4
Secretory Pathway
Haploidy
Protein Sorting Signals
Cell Wall
Saccharomyces cerevisiae
Membrane Proteins
Amino Acids

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Yeast KRE2 defines a new gene family encoding probable secretory proteins, and is required for the correct N-glycosylation of proteins. / Hill, K.; Boone, C.; Goebl, Mark; Puccia, R.; Sdicu, A. M.; Bussey, H.

In: Genetics, Vol. 130, No. 2, 1992, p. 273-283.

Research output: Contribution to journalArticle

Hill, K. ; Boone, C. ; Goebl, Mark ; Puccia, R. ; Sdicu, A. M. ; Bussey, H. / Yeast KRE2 defines a new gene family encoding probable secretory proteins, and is required for the correct N-glycosylation of proteins. In: Genetics. 1992 ; Vol. 130, No. 2. pp. 273-283.
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AU - Boone, C.

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AU - Sdicu, A. M.

AU - Bussey, H.

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