Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-1-8
pubmed:abstractText
In Saccharomyces cerevisiae, entry into S phase requires the activation of the protein kinase Cdc28p through binding with cyclin Clb5p or Clb6p, as well as the destruction of the cyclin-dependent kinase inhibitor Sic1p. Mutants that are defective in this activation event arrest after START, with unreplicated DNA and multiple, elongated buds. These mutants include cells defective in CDC4, CDC34 or CDC53, as well as cells that have lost all CLB function. Here we describe mutations in another gene, CAK1, that lead to a similar arrest. Cells that are defective in CAK1 are inviable and arrest with a single nucleus and multiple, elongated buds. CAK1 encodes a protein kinase most closely related to the Cdc2p family of protein kinases. Mutations that lead to the production of an inactive kinase that can neither autophosphorylate, nor phosphorylate Cdc28p in vitro are also incapable of rescuing a cell with a deletion of CAK1. These results underscore the importance of the Cak1p protein kinase activity in cell cycle progression.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0026-8925
pubmed:author
pubmed:issnType
Print
pubmed:volume
256
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
365-75
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Mutational analysis of Cak1p, an essential protein kinase that regulates cell cycle progression.
pubmed:affiliation
Walther Oncology Center, Indiana University School of Medicine, Indianapolis 46202-5122, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't