PMID: 9544703Apr 17, 1998Paper

Gin4 of S. cerevisiae is a bud neck protein that interacts with the Cdc28 complex

Genes to Cells : Devoted to Molecular & Cellular Mechanisms
D OkuzakiH Nojima

Abstract

A number of proteins make up the Cdc28 complex in Saccharomyces cerevisiae, and regulate CDK activity. The cell cycle regulator Nik1 (Hsl1) is a protein kinase that interacts with the Cdc28 complex. The growth inhibitor Gin4 is structurally similar to Nik1 and may play a redundant role in the regulation of the cell cycle. We investigated the functions of Gin4 with respect to those of Nik1. GIN4 was not essential for growth, and cells deficient in the GIN4 gene displayed no obvious defects in cell cycle regulation. The delta(gin)4 delta(nik)1 strain was temperature sensitive and showed an abnormal cell shape and FACS profile at permissive temperatures. GFP-fused Gin4 was localized at the bud-neck from late G1 to the M phase. Over-production of the C-terminal portion of Gin4 was toxic for cell growth, and this domain was required for the bud-neck localization of Gin4-GFP. High copy expression of Gin4-GFP disturbed the bud-neck localization of Gin4 in the abnormally elongated cells. Cytokinesis was defective in the delta(gin)4 cdc28 double mutants. The GST-Gin4 fusion protein physically associates with the Cdc28 complex. Gin4 is a bud-neck protein. GIN4 and NIK1 have distinct but partially overlapping functions. The major function...Continue Reading

Citations

Mar 6, 2007·Eukaryotic Cell·Eric M Rubenstein, Martin C Schmidt
Dec 19, 2007·Molecular and Cellular Biology·Meredith E K CalvertLucy F Pemberton
May 11, 2000·Molecular and Cellular Biology·M S LongtineD J Lew
Jun 18, 2009·Journal of Cell Science·Debarati MukherjeeR Claudio Aguilar
Jun 16, 2012·Genetics·Erfei Bi, Hay-Oak Park
Feb 13, 2001·FEBS Letters·D Okuzaki, H Nojima
Oct 7, 2003·Molecular Cell·Jessie Hanrahan, Michael Snyder
Nov 13, 1999·Nature Cell Biology·J Pines
Nov 24, 1999·Molecular and Cellular Biology·A Sreenivasan, D Kellogg

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