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
    rrf-1 RNA-dependent RNA polymerase Family Although rrf-1(pk1417) mutants seem to have elevated DAF-16 activity (as sod-3 transcript level is increased) the mean and maximum lifespan or ability to withstand elevated temperature is not different from wild-type [22574120]. Nematode
    (-)-epidcatechin Treatment with (-)-epidcatechin do no extend C. elegans lifespan [20717869]. Nematode
    ced-3 CEll Death abnormality RNA interference of ced-3 in adulthood results in a 19% increase in mean lifespan [17411345]. The ced-3(n1286) allele has no effect on lifespan, although the transgenic animals are defective in apoptosis [12136014]. Nematode
    ctl-1 CaTaLase 1 ctl-1 loss of function shortens lifespan to 77% of wild-type animals. ctl-1 mutants accumulate fluorescent material faster than wild-type, indicating accelerated aging [12610632]. ctl-1 mutation prevents lifespan extension by daf-2 or clk-1. Mutation of ctl-1 reudces catalase activty by 50% [10335847]. All these results have been retracted. Nematode
    daf-1 abnormal DAuer Formation daf-1(mk40) mutation increases mean lifespan by 18-46% and maximum lifespan by 29% [17900898]. The daf-1(m40) allele has no effect on lifespan and fails to prevent lifespan extension by sir-2.1 overexpression, but it results in a temperautre-sensitive, dauer-constitutive phenotype in larvae [11242085]. Nematode
    dod-19 Downstream Of DAF-16 (regulated by DAF-16) RNA interference of dod-19 extends lifespan by 28%. dod-19 is differentially transcribed in daf-16 and daf-2 RNAi animals [12845331]. Nematode
    fem-3 FEMinization of XX and XO animals fem-3(e1996) mutants do not produce sperm or self-progeny, therefore develop as females, but have a normal lifespan (See also ref 10) [8247153]. Nematode
    fog-1 Feminization Of Germline The fog-1(q180) allele has no effect on lifespan [11799246]. fog-1 mutants are sterile and make oocytes but not sperm [2341035]. Nematode
    fog-2 Feminization Of Germline 2 fog-2(q71) allele has no effect on lifespan [10747056]. fog-2 mutant display hermaphrodite specific germ line feminization [11076749]. Nematode
    fog-3 Feminization Of Germline 3 The fog-3(q470) allele has no effect on lifespan [11799246]. In fog-3 mutant animals cells that would normally become sperm differentiate into oocytes [7713418]. Nematode
    ins-22 INSulin related 22 RNAi of ins-22 has no effect on lifespan. ins-22 is differentially transcribed in daf-16 and daf-2 RNAi animals [12845331]. Nematode
    lars-2 Leucyl Amino-acyl tRNA Synthetase A mutation that impairs mitochondrial function was associated with a longer lifespan. Mutation of lrs-2/lars-2(mg312) extends lifespan and is associated with impaired mitochondrial function. The recessive allele mg312 of lars-2 extends lifespan by 200% at 20 degree Celsius and 30% at 25 degree Celsius. Lifespan extension by mg312 was not dependent on daf-16(mgDf47). Homozygous lars-2(mg312) worms had multiple pleotropies like lower rates of growth, pumping and defecation as well as remain the size of early L4 worms and are sterile, with an arrested gonad that exhibited no germ-cell differentiation lars-2 is ubiquitously express, with prominent expression in body-wall muscle and neurons, with a mitochondrial subcellular localisation. Mitochondria of lars-2 are noticeably disorganized, swollen and sometimes fused. lars-2 animals have lower ATP content and oxygen consumption [12447374]. Nematode
    mec-1 MEChanosensory abnormality 1 Loss of function mutations in mec-1 do not effect lifespan [2428682]. mec-1 mutants are touch insenstive, lethargic, and have displacement of some microtubule cells and amphidial neurons as well as defective fasciculation [2428682]. Nematode
    sip-1 Stress Induced Protein 1 RNAi of sip-1 has no effect on wild-type adult lifespan, but slightly shortens the long lifespan of age-1(hx546) mutant animals [14668486]. Nematode
    unc-1 UNCoordinated 1 Mutation in unc-1 has no effect on lifespan [9789046]. Nematode
    unc-15 UNCoordinated 15 Mutation of unc-15 has no effect on lifespan [9789046]. Some alleles of un-15 display severe paralysis [4366476; 2051482]. Nematode
    unc-2 UNCoordinated 2 Loss of function in unc-2 has no effect on lifespan [9789046]. unc-2 mutant is uncoordinated [4366476] and its rate of pharyngeal pumping is reduced [8325482]. Nematode
    unc-24 UNCordinated 24 Mutations in unc-24 have no significant effect on lifespan [9789046] and unc-24(e138) fails to extend male lifespan [10747056]. unc-24 mutant is uncoordinated and displays irregular movement [4366476; 8667025]. Nematode
    unc-25 UNCoordinated 25 Mutations in unc-25 have no effect on lifespan [9789046]. unc-25 mutants are defective for foraging, locomotion, and defecation [8332190] as well as uncoordinated [4366476]. Nematode
    unc-29 UNCoordinated Mutation in unc-29 has no effect on lifespan [9789046] and fails to extend male lifespan [10747056]. unc-29 mutants are uncoordinated [4366476]. Nematode
    unc-30 UNCoordinated 30 Mutations in unc-30 have no significant effect on lifespan [9789046]. unc-30 mutants are uncoordinated [4366476]. Nematode
    unc-46 UNCoordinated 46 unc-46(e177) allele has no significant effect on lifespan [9789046]. unc-46 mutants are uncoordinated [4366476]. Nematode
    unc-47 UNCoordinated 47 The unc-47(e367) allele has no significant effect on lifespan [9789046]. unc-47 mutants are uncoordinated [4366476]. Nematode
    unc-49 UNCoordinated 49 The unc-49(e382) allele has no significant effect on lifespan [9789046]. unc-49 mutants are uncoordinated [4366476]. Nematode
    unc-54 UNCoordinated 54 Mutation in unc-54 has no effect on lifespan [9789046]. unc-54 mutants are paralyzed [4366476]. Nematode
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    • 25 of 52 factors
    Factors are an extension of GenAge and GenDR.

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