daf-16;odr-3

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Genetic mutants with daf-16, odr-3 alterations

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

Temperature °C
20
Lifespan (days)
13.6
Lifespan change (compared to wild type)
-22.29%
Phenotype
Life span extension caused by loss-of-function of odr-3, gpc-1 or extra copies of gpa-11 completely depends on daf-16. daf-16; odr-3 and daf-16; gpa-11XS animals even showed a slightly shorter life span than daf-16 single mutants.
Lifespan comparisons
Double mutant daf-16(mu86);odr-3(n1605) has a lifespan of 13.6 days, while single mutant odr-3(n1605) has a lifespan of 17.1 days, single mutant daf-16(mu86) has a lifespan of 15.8 days and wild type has a lifespan of 17.5 days.
Type of interaction
See methods
Opposite lifespan effects of single mutants
Citation
View abstract
Lans H, Jansen G, 2007, Multiple sensory G proteins in the olfactory, gustatory and nociceptive neurons modulate longevity in Caenorhabditis elegans. Dev Biol. 303(2):474-82 17187771 Click here to select all mutants from this PubMed ID in the graph
Abstract
The life span of the nematode Caenorhabditis elegans is under control of sensory signals detected by the amphid neurons. In these neurons, C. elegans expresses at least 13 Galpha subunits and a Ggamma subunit, which are involved in the transduction and modulation of sensory signals. Here, we show that loss-of-function mutations in the Galpha subunits odr-3, gpa-1 and gpa-9, in the Ggamma subunit gpc-1 and the introduction of extra copies of the Galpha subunit gpa-11 extend the life span of C. elegans. Loss-of-function of odr-3 and extra copies of gpa-11 act synergistically and can together extend life span more than two-fold, indicating that sensory signals play an important role in regulating life span. We show that gpa-1, gpa-11, odr-3 and gpc-1 all signal via the daf-16 FOXO family transcription factor. In addition, odr-3 and gpa-11 might suppress life span extension partially independent of the insulin/IGF-1 like receptor homologue daf-2. Our results suggest that the previously unanticipated nociceptive ASH and/or ADL neurons regulate longevity. We expect that the implication of specific G proteins will eventually contribute to the identification of the sensory cues that determine the rate of aging in C. elegans.

Search genes: daf-16 odr-3

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

179806
odr-3
View on GenAge (odr-3)
WBGene00003850

Guanine nucleotide-binding protein alpha-17 subunit

Locus: CELE_C34D1.3

Wormbase description: odr-3 encodes a G protein alpha subunit; odr-3 activity is required for normal chemotaxis, odorant avoidance, and nociceptive function as well as cilium morphogenesis in chemosensory neurons; an ODR-3::GFP is expressed in five pairs of sensory neurons AWA, AWB, AWC, ASH, and ADF; the AWC neurons consistently express GFP most strongly, while the AWB neurons express at lower levels and the AWA, ASH, and ADF neurons express only weakly; in AWC neurons, ODR-3::GFP localizes to cilia which have a characteristic wing-shaped morphology.

Orthologs of daf-16;odr-3 in SynergyAge

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Species	Gene

Not in SynergyAge
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 odr-3 in SynergyAge

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Species	Gene