Factors

We need to know every factor which determines lifespan.

Lifespan factors often but not always originate from defined genetic elements. They are not just genes, by definition they can be anything for which a Classifications schema can be build for that is related to the regulation of lifespan, such entities may include Single-Nucleotide Polymorphism, transcript variants, proteins and their complexes, compounds (i.e. small molecules like metabolites and drugs), etc. A factor should be based on a defined molecular entity or genomic position and been classified. It shall be highly flexible and scalable Concept.

While individual lifespan factors within each species or precise defined molecular entities will be captured within the Lifespan App, Data Entries of the Data App may summarize for instance the relevance of each factor class (e.g. homologous group; chemical derivate of related structure and properties, etc.) as well as draw overall conclusions. o

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  • symbol name observation species
    ucp2 uncoupling protein 2 Overexpression of zebrafish's ucp2 in nematode increases mean, median, and maximum lifespan by 42, 40, and 26%, which is non-additive with sDR [22737090].
    sty1 Deleting sty1 cancels out chronological lifespan extension and enhanced heat stress resistance by DR. Sty1 (phosphorylated) and Sty1-dependent gene transcription (atf1, gpx1, cta1, fbp1) is activated during DR in the stationary phase, but are barely activated in glucose rich medium [20075862]. Fission yeast
    atf1 activating transcription factor 1 Activation of transcription factor Atf1 by Sty1 is required for chronological lifespan extension and enhanced heat stress resistance by DR. Deleting atf1 cancels out DR-mediated chronological lifespan extension and enhanced heat stress resistance. Overexpressing atf1 is not sufficient to promote chronological lifespan extension in cells lacking sty1 [20075862]. Fission yeast
    wis1 Constitutive active mutation of wis1 extends chronological lifespan and there is no further beneficial effect of DR [20075862]. Fission yeast
    pka1 cAMP-dependent protein kinase 1 pka1 knockouts exhibits a three-fold increase in chronological lifespan with up to 187% longer maximum lifespan [16822282]. Deleting ser/thr cAMP-activated protein kinase pka1 extends chronological lifespan under normal condition, but there is no additive effect with DR [20075862]. Fission yeast
    gpa2 Guanine nucleotide-binding protein alpha-2 subunit gpa2 (alias git8) encodes the alpha subunit of a heterotrimeric G protein, which acts downstream of Git3. Git8 activity accelerates aging and inhibits the lifespan-extending effect of DR. Constitutive active mutation of gpa2 decreases chronological lifespan under AL (2% glucose) and almost completely cancels out the lifespan extending effect of DR (0.2% glucose) [19266076]. Fission yeast
    GPA2 G Protein Alpha subunit 2 Deletion of GPA2 increases mean and maximum replicative lifespan by 40% and 26%, respectively [11000115]. Deletion of GPA2 extends replicative lifespan by reducing cAMP-PKA activity and provides a genetic model for DR [11000115]. Budding yeast
    NNT1 Nicotinamide N-methylTransferase 1 Deletion of NNT1 decreases mean and maximum lifespan by 9 and 19%. 0.5% glucose DR extends the mean and maximum lifespan of NNT1 deletion mutants by 35 and 40%. Overexpression of NNT1 by 5-fold extends mean and maximum replicative lifespan by 18 and 23%, which is approximately of the same magnitude as the lifespan extension obtained from DR. DR in NNT1 overexpression mutant fails to significantly affect the lifespan and only results in extended mean lifespan by 12% and reduced maximum lifespan by 11%. NNT1 overexpression increases rDNA silincing, whereas deletion decreases rDNA silencing. Overexpression of human nicotinamide N-methyltransferase also increases rDNA silencing [12736687]. Budding yeast
    VPS21 Vacuolar Protein Sorting 21 Lack of VPS21 reduces lifespan under starvation conditions to a level similiar to that of wild-type cells incubated in synthetic complete medium and therefore blocked the lifespan-extending effect of DR [20657825]. Budding yeast
    VPS8 Vacuolar Protein Sorting 8 Lack of VPS8 reduces lifespan under starvation conditions to a level similiar to that of wild-type cells incubated in synthetic complete medium and therefore blocked the lifespan-extending effect of DR [20657825]. Budding yeast
    HST1 Homolog of SIR Two (SIR2) 1 Deletion of HST1 blocks the residual replicative lifespan extension by hxk2 mutant in a sir2;fob1;hst2 triple mutant background [16051752]. However, DR can increases the replicative lifespan to a similar extent in sir2;fob1;hst1;hst2 quadruple mutant cells as in sir2;fob1 double mutant cells under 0.5, 0.05 and 0.005% glucose conditions and even by hxk2 deletion mutant [16741098; 17129213]. Budding yeast
    PCK1 Phosphoenolpyruvate CarboxyKinase 1 Loss of Pck1 activity blocks chronological lifespan extension caused by water starvation. Knockout of PCK1 dramatically reduces chronological lifespan in both water (extreme DR) and glucose-containing medium. pck-1-K514Q mutation which abrogates enzymatic activity of Pck1, just like SIR2 deletion, extends chronological lifespan in water. Deletion of SIR2 does not alter the lifespan of PCK1 deletion mutant, pck1-K514R, and pck1-K514Q mutants [19303850]. Budding yeast
    GSH1 glutathione (GSH) 1 Deletion of GSH1 confers deficiency in glutathione biosynthesis and further increases chronological lifespan under 0.5% glucose restriction, but does not extend chronological lifespan under 2% glucose [18840459]. Therefore, GSH1 has a positive interaction with DR [18840459]. Budding yeast
    ERG3 ERGosterol biosynthesis Deletion of ERG3 decreases replicative lifespan under AL, cancels out replicative lifespan extension of 0.5% glucose DR and results under DR also into a shorter replicative lifespan than under AL [18690010]. Budding yeast
    SUR4 SUppressor of Rvs161 and rvs167 mutations 4 Deletion of SUR4 cancels out replicative lifespan extension of 0.5% glucose DR [18690010]. Budding yeast
    LCB4 Long-Chain Base 4 Deletion of LCB4 increases replicative lifespan and cancels out replicative lifespan extension of 0.5% glucose DR [18690010]. Budding yeast
    NFU1 NifU-like protein 1 NFU1 mutation slightly shortens the chronological lifespan under AL and the chronological lifespan of NFU1 mutants is not extended by 0.5% glucose DR [20421943]. Budding yeast
    FET3 FErrous Transport 3 FET3 mutation slightly shortens chronological lifespan under AL. Its chronological lifespan is not extended by 0.5% glucose or amino-acid DR [20421943]. FET3 is one of several iron related genes that are up-regulated in response to increasing strength of glucose DR [18679056]. Budding yeast
    ATG16 AuTophaGy related 16 Under AL atg16 mutation shortens chronological, but not replicative lifespan. 0.5% glucose DR extends chronological lifespan of atg16 mutants, but amino-acid DR does not extend the short chronological lifespan of atg16 mutants (similar to several other autophagy mutants). ADE4 deletion in atg16 mutants results only in a partial extension of chronological lifespan by 0.5% glucose DR. The long chronological lifespan of tor1 mutants requires ATG16 [20421943]. Budding yeast
    ATG2 AuTophaGy related 2 ATG2 deletion prevents chronological lifespan extension induced by amino-acid DR [20421943]. Budding yeast
    VPS30 Vacuolar Protein Sorting 30 VPS30 deletion prevents chronological lifespan extension induced by amino-acid DR [20421943]. Budding yeast
    HXT17 HeXose Transporter 17 HXT17 mutation extends both replicative and chronological lifespan as well as cancels out DR-induced replicative and chronological lifespan extension. Mean and maximum replicative lifespan are extended by 27 and 49%, respectively [21584246]. Budding yeast
    GUP1 Glycerol UPtake 1 GUP1 deletion extends mean and maximum replicative lifespan by 32 and 30%, respectively, as well as chronological lifespan. DR-induced maximal replicative lifespan extension is not further increased by GUP1 deletion, while gup1 mutant displayed longer chronological lifespan under DR [21584246]. Budding yeast
    AIM4 Altered Inheritance rate of Mi 4 AIM4 (alias SOY1) deletion increases chronological and replication lifespan, which is non-additive with DR. On AL mean and maximum replicative lifespan are extended by 63 and 69%, respectively. DR appears to decrease aim4-induced replication lifespan extension, indicating a negative interaction. aim4 mutation does not change DR-induced chronological lifespan extension [21584246]. Budding yeast
    HHF1 Histone H Four 1 HHF1 deletion extends mean and maximum replicative by 45 and 69%, respectively, as well as chronological lifespan. Chronological lifespan extension by HHF1 deletion and DR is non-synergistic. DR appears to extend replicative lifespan more when combined with hhf1 mutation, whereas DR does not change hhf1-induced replicative lifespan extension, suggesting a positive interaction [21584246]. Budding yeast
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    • 25 of 172 factors
    Factors are an extension of GenAge and GenDR.

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