ctl-2;fem-1;fer-15

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Genetic mutants with ctl-2, fem-1, fer-15 alterations

Names of genes are ordered alphabetically. For the order of interventions, please see the specific paper.

Temperature °C
25
Diet
OP50
Lifespan (days)
13.5
Lifespan comparisons
Triple mutant ctl-2(RNAi);fem-1(hc-17);fer-15(b26) has a lifespan of 13.5 days, while double mutant fem-1(hc-17);fer-15(b26) has a lifespan of 13.1 days.
Citation
View abstract
Murphy CT et al., 2003, Genes that act downstream of DAF-16 to influence the lifespan of Caenorhabditis elegans. Nature. 424(6946):277-83 12845331 Click here to select all mutants from this PubMed ID in the graph
Abstract
Ageing is a fundamental, unsolved mystery in biology. DAF-16, a FOXO-family transcription factor, influences the rate of ageing of Caenorhabditis elegans in response to insulin/insulin-like growth factor 1 (IGF-I) signalling. Using DNA microarray analysis, we have found that DAF-16 affects expression of a set of genes during early adulthood, the time at which this pathway is known to control ageing. Here we find that many of these genes influence the ageing process. The insulin/IGF-I pathway functions cell non-autonomously to regulate lifespan, and our findings suggest that it signals other cells, at least in part, by feedback regulation of an insulin/IGF-I homologue. Furthermore, our findings suggest that the insulin/IGF-I pathway ultimately exerts its effect on lifespan by upregulating a wide variety of genes, including cellular stress-response, antimicrobial and metabolic genes, and by downregulating specific life-shortening genes.

Search genes: ctl-2 fem-1 fer-15 ctl-2;fem-1;fer-15

Entrez ID
Symbol
GenAge
Wormbase ID

175085
ctl-2
View on GenAge (ctl-2)
WBGene00000831

Peroxisomal catalase 1

Locus: CELE_Y54G11A.5

Wormbase description: ctl-2 encodes one of three C. elegans catalases; CTL-2 exhibits catalase and peroxidase activity in vitro, and thus likely functions in vivo as an antioxidant enzyme that protects cells from reactive oxygen species; ctl-2 activity is required for normal lifespan as well as for the extended lifespan seen in daf-2 mutant animals; in addition, ctl-2 is required for normal egg-laying capacity and for normal peroxisomal morphology; immunoelectron microscopy indicates that CTL-2 is found mainly in the peroxisomes of intestinal epithelial cells; ctl-2 expression is negatively regulated by DAF-2-mediated insulin signaling.

Entrez ID
Symbol
GenAge
Wormbase ID

177335
fem-1
View on GenAge (fem-1)
WBGene00001411

Sex-determining protein fem-1

Locus: CELE_F35D6.1

Wormbase description: The fem-1 gene encodes an ankyrin repeat-containing protein orthologous to human FEM1A and is required for masculinization of germline and somatic tissues; FEM-1 is widely expressed and functions as a second messenger in the sex determination pathway, connecting the membrane protein TRA-2A to the transcription factor TRA-1A which it negatively regulates; FEM-1 may also play a role in apoptosis, as it is a substrate for the CED-3 protease and can induce apoptosis when overexpressed in mammalian cells.

Symbol
GenAge

fer-15
View on GenAge (fer-15)

No gene information for fer-15

Orthologs of ctl-2;fem-1;fer-15 in SynergyAge

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Orthologs of ctl-2 in SynergyAge

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Orthologs of fem-1 in SynergyAge

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Orthologs of fer-15 in SynergyAge

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SynergyAge database hosts high-quality, manually curated information about the synergistic and antagonistic lifespan effects of genetic interventions in model organisms, also allowing users to explore the longevity relationships between genes in a visual way.