PAT1, an evolutionarily conserved acetyltransferase homologue, is required for multiple steps in the cell cycle

Rueyling Lin, C. David Allis, Stephen J. Elledge

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Acetylation has been implicated in many biological processes. Mutations in N-terminal acetyltransferases have been shown to cause a variety of phenotypes in Saccharomyces cerevisiae including activation of heterochromatin, inability to enter G0, and lethality. Histone acetylation has been shown to play a role in transcription regulation, histone deposition and histone displacement during spermatogenesis, although no known histone acetyltransferase is essential. Studies aimed at revealing a role for histone HI in yeast have uncovered a mutation in a putative acetyltransferase, PAT1. The mutant (pat1-1) cells can live only in the presence of vertebrate Hl. PAT1 is essential for mitotic growth in S. cerevisiae; mutant cells depleted of the Pat1p show aberrant cellular and nuclear morphology. PAT1 is required for multiple cell cycle events, including passage through START, DNA synthesis, and proper mitosis through a microtubule-mediated process. The S. pombe PAT1 gene was cloned by complementation and shown to exist as part of a larger protein, the unique portion of which is homologous to a second S. cerevisiae gene. pat1 mutants show a variety of mitotic defects including enhanced chromosome loss, accumulation of multiple nuclei, generation of giant cells, and displays classical cut phenotypes in which cytokinesis occurs in the absence of proper nuclear division and segregation. PAT1 controls multiple processes in cell cycle progression which suggests an essential role for the acetylation of yet unknown substrate(s).

Original languageEnglish (US)
Pages (from-to)923-942
Number of pages20
JournalGenes to Cells
Volume1
Issue number10
StatePublished - 1996

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Acetyltransferases
Histones
Cell Cycle
Acetylation
Saccharomyces cerevisiae
N-Terminal Acetyltransferases
Cell Nucleus Division
Phenotype
Biological Phenomena
Histone Acetyltransferases
Mutation
Cytokinesis
Heterochromatin
Schizosaccharomyces
Giant Cells
Spermatogenesis
Mitosis
Microtubules
Genes
Vertebrates

ASJC Scopus subject areas

  • Cell Biology
  • Genetics

Cite this

PAT1, an evolutionarily conserved acetyltransferase homologue, is required for multiple steps in the cell cycle. / Lin, Rueyling; Allis, C. David; Elledge, Stephen J.

In: Genes to Cells, Vol. 1, No. 10, 1996, p. 923-942.

Research output: Contribution to journalArticle

Lin, Rueyling ; Allis, C. David ; Elledge, Stephen J. / PAT1, an evolutionarily conserved acetyltransferase homologue, is required for multiple steps in the cell cycle. In: Genes to Cells. 1996 ; Vol. 1, No. 10. pp. 923-942.
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