Symbol: SSD1 Name: Suppressor of SIT4 Deletion 1 Entrez gene ID: 851887 Ensembl gene ID: YDR293C Species: Yeast (Taxid: 4932) Functional description: Ssd1p; Translational repressor with a role in polar growth and wall integrity; regulated by Cbk1p phosphorylation to effect bud-specific translational control and localization of specific mRNAs; interacts with TOR pathway components; contains a functional /.../inal nuclear localization sequence and nucleocytoplasmic shuttling appears to be critical to Ssd1p function [Source:SGD;Acc:S000002701] [Ensembl]; Translational repressor with a role in polar growth and wall integrity; regulated by Cbk1p phosphorylation to effect bud-specific translational control and localization of specific mRNAs; interacts with TOR pathway components; contains a functional N-terminal nuclear localization sequence and nucleocytoplasmic shuttling appears to be critical to Ssd1p function [SGD] Observation: Overexpression of SSD1 (addition of a SSD1-V allele) increases replicative lifespan by 50%, independently of SIR2 and SIR2 further extends the lifespan, although SIR2 is necessary for SSD1-V cells to attain maximal lifespan [15126388]. SSD1-V also dramatically increases chronological lifespan with lifespan twice as long as ssd1-d cells [19570907]. Deletion of SSD1 increases replicative lifespan by 50% [Li et al., 2009]. Addition of SSD1-V allele to an ssd1-d strain suppresses the short lifespan of an MPT5 deletion mutant [11805047] and extend wild-type lifespan [Kaeberlein and Guarente, unpublished]. SSD1-V slightly extends the lifespan of swi4 and ccr4 mutant strains and suppresses the temperature sensitive growth phenotype of mpt5, ccr3, swi4, and swi6 single mutants [11805047]. SSD1-V also suppresses the synthetic lethality caused by deletion of MPT5 in combination with a mutation in SWI4, SWI6, or CCR4 [11805047]. SSD1-V suppresses mutations that affect cell wall stability [1545797; 8386319], RNA polymerase III activity [8510644], RNA splicing [10446233], and PKA activity [1848673; 8200529]. Interventions: Assays: Replicative Lifespan Chronological Lifespan Classification: Aging Relevance Analysis/Source: Homologs Note: Is SSD1-V allele a gain or loss of function mutation? Edit \ Update (Admin) | Delete |
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