PMID- 9334317 OWN - NLM STAT- MEDLINE DCOM- 19971106 LR - 20240214 IS - 0890-9369 (Print) IS - 0890-9369 (Linking) VI - 11 IP - 19 DP - 1997 Oct 1 TI - Coupling of cell division to cell growth by translational control of the G1 cyclin CLN3 in yeast. PG - 2522-31 AB - The eukaryotic cell cycle is driven by a cascade of cyclins and kinase partners including the G1 cyclin Cln3p in yeast. As the first step in this cascade, Cln3p is uniquely positioned to determine the critical growth-rate threshold for division. To analyze factors regulating CLN3 expression, we identified a short upstream open reading frame (uORF) in the 5' leader of CLN3 mRNA as a translational control element. This control element is critical for the growth-dependent regulation of Cln3p synthesis because it specifically represses CLN3 expression during conditions of diminished protein synthesis or slow growth. Inactivation of the uORF accelerates the completion of Start and entry into the cell cycle suggesting that translational regulation of CLN3 provides a mechanism coupling cell growth and division. FAU - Polymenis, M AU - Polymenis M AD - MGH Cancer Center, Massachusetts General Hospital, Charlestown 02129, USA. FAU - Schmidt, E V AU - Schmidt EV LA - eng GR - R01 CA063117/CA/NCI NIH HHS/United States GR - R01-CA63117/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Genes Dev JT - Genes & development JID - 8711660 RN - 0 (Antifungal Agents) RN - 0 (CLN3 protein, S cerevisiae) RN - 0 (Cyclins) RN - 0 (Fungal Proteins) RN - 0 (Peptide Initiation Factors) RN - 0 (Polyenes) RN - 0 (RNA, Fungal) RN - 0 (RNA, Messenger) RN - 0 (Saccharomyces cerevisiae Proteins) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Antifungal Agents/pharmacology MH - Cell Division/genetics/*physiology MH - Cyclins/biosynthesis/*genetics MH - DNA Replication/genetics MH - Flow Cytometry MH - Fungal Proteins/biosynthesis/*genetics MH - *Gene Expression Regulation, Fungal MH - Genes, Reporter MH - Mutation MH - Open Reading Frames/genetics MH - Peptide Initiation Factors/genetics MH - Polyenes/pharmacology MH - Polyribosomes/genetics MH - Protein Biosynthesis/genetics MH - RNA, Fungal/genetics/metabolism MH - RNA, Messenger/genetics/metabolism MH - Saccharomyces cerevisiae/*genetics/growth & development MH - *Saccharomyces cerevisiae Proteins MH - Sequence Analysis, DNA MH - Sirolimus PMC - PMC316559 EDAT- 1997/10/23 00:00 MHDA- 1997/10/23 00:01 PMCR- 1998/04/01 CRDT- 1997/10/23 00:00 PHST- 1997/10/23 00:00 [pubmed] PHST- 1997/10/23 00:01 [medline] PHST- 1997/10/23 00:00 [entrez] PHST- 1998/04/01 00:00 [pmc-release] AID - 10.1101/gad.11.19.2522 [doi] PST - ppublish SO - Genes Dev. 1997 Oct 1;11(19):2522-31. doi: 10.1101/gad.11.19.2522.