C09B7.2;daf-16;rrf-3

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Genetic mutants with C09B7.2, daf-16, rrf-3 alterations

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

Temperature °C
25
Lifespan (days)
8.17
Lifespan comparisons
Triple mutant C09B7.2(RNAi);daf-16(mgDf47);rrf-3(pk1426) has a lifespan of 8.17 days, while double mutant daf-16(mgDf47);rrf-3(pk1426) has a lifespan of 8.46 days.
Citation
View abstract
Hamilton B et al., 2005, A systematic RNAi screen for longevity genes in C. elegans. Genes Dev. 19(13):1544-55 15998808 Click here to select all mutants from this PubMed ID in the graph
Abstract
We report here the first genome-wide functional genomic screen for longevity genes. We systematically surveyed Caenorhabditis elegans genes using large-scale RNA interference (RNAi), and found that RNAi inactivation of 89 genes extend C. elegans lifespan. Components of the daf-2/insulin-like signaling pathway are recovered, as well as genes that regulate metabolism, signal transduction, protein turnover, and gene expression. Many of these candidate longevity genes are conserved across animal phylogeny. Genetic interaction analyses with the new longevity genes indicate that some act upstream of the daf-16/FOXO transcription factor or the sir2.1 protein deacetylase, and others function independently of daf-16/FOXO and sir2.1, and might define new pathways to regulate lifespan.

Search genes: C09B7.2 daf-16 rrf-3 C09B7.2;daf-16;rrf-3

Entrez ID
Symbol
GenAge
Wormbase ID

182438
C09B7.2
View on GenAge (C09B7.2)
WBGene00015621

hypothetical protein

Locus: CELE_C09B7.2

Wormbase description: none available

Entrez ID
Symbol
GenAge
Wormbase ID

172981
daf-16
View on GenAge (daf-16)
WBGene00000912

Forkhead box protein O;hypothetical protein

Locus: CELE_R13H8.1

Wormbase description: daf-16 encodes the sole C. elegans forkhead box O (FOXO) homologue; DAF-16 functions as a transcription factor that acts in the insulin/IGF-1-mediated signaling (IIS) pathway that regulates dauer formation, longevity, fat metabolism, stress response, and innate immunity; DAF-16 regulates these various processes through isoform-specific expression, isoform-specific regulation by different AKT kinases, and differential regulation of target genes; DAF-16 can interact with the CBP-1 transcription cofactor in vitro, and interacts genetically with other genes in the insulin signaling and with daf-12, which encodes a nuclear hormone receptor; DAF-16 is activated in response to DNA damage during development and co-regulated by EGL-27, alleviates DNA-damage-induced developmental arrest by inducing DAF-16-associated element (DAE)-regulated genes; DAF-16 is broadly expressed but displays isoform-specific tissue enrichment; DAF-16 localizes to both the cytoplasm and the nucleus, with the ratio between the two an important regulator of function.

Entrez ID
Symbol
GenAge
Wormbase ID

174315
rrf-3
View on GenAge (rrf-3)
WBGene00004510

RNA-dependent RNA polymerase Family

Locus: CELE_F10B5.7

Wormbase description: rrf-3 encodes an RNA-directed RNA polymerase (RdRP) homolog that inhibits somatic RNAi, and thus promotes activity of repeated genes (e.g., multicopy transgenic arrays); the effect of RRF-3 on RNAi is opposite to that of RRF-1 (which stimulates somatic RNAi), which might arise from competition by RRF-3 with RRF-1 or EGO-1 in RNAi formation; rrf-3(allele) or rrf-3(allele2) mutants are hypersensitive to somatic RNAi, and conversely suppress the activity of an integrated rol6 (su1006) transgene.

Orthologs of C09B7.2;daf-16;rrf-3 in SynergyAge

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Species	Gene

Not in SynergyAge
Species	Gene

Orthologs of C09B7.2 in SynergyAge

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Species	Gene

Orthologs of daf-16 in SynergyAge

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Species	Gene

Not in SynergyAge
Species	Gene
Mus musculus	Foxo6
Mus musculus	Foxo1
Mus musculus	Foxo4
Mus musculus	Foxo3

Orthologs of rrf-3 in SynergyAge

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Species	Gene

About

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.