SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Covo Shay) "

Sökning: WFRF:(Covo Shay)

  • Resultat 1-1 av 1
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Cohen, Rotem, et al. (författare)
  • Ribonucleotide reductase from Fusarium oxysporum does not Respond to DNA replication stress
  • 2019
  • Ingår i: DNA Repair. - : Elsevier. - 1568-7864 .- 1568-7856. ; 83
  • Tidskriftsartikel (refereegranskat)abstract
    • Ribonucleotide reductase (RNR) catalyzes the rate limiting step in dNTP biosynthesis and is tightly regulated at the transcription and activity levels. One of the best characterized responses of yeast to DNA damage is up-regulation of RNR transcription and activity and consequently, elevation of the dNTP pools. Hydroxyurea is a universal inhibitor of RNR that causes S phase arrest. It is used in the clinic to treat certain types of cancers. Here we studied the response of the fungal plant pathogen Fusarium oxysporum to hydroxyurea in order to generate hypotheses that can be used in the future in development of a new class of pesticides. F. oxysporum causes severe damage to more than 100 agricultural crops and specifically threatens banana cultivation world-wide. Although the recovery of F. oxysporum from transient hydroxyurea exposure was similar to the one of Saccharomyces cerevisiae, colony formation was strongly inhibited in F. oxysporum in comparison with S. cerevisiae. As expected, genomic and phosphoproteomic analyses of F. oxysporum conidia (spores) exposed to hydroxyurea showed hallmarks of DNA replication perturbation and activation of recombination. Unexpectedly and strikingly, RNR was not induced by either hydroxyurea or the DNA-damaging agent methyl methanesulfonate as determined at the RNA and protein levels. Consequently, dNTP concentrations were significantly reduced, even in response to a low dose of hydroxyurea. Methyl methanesulfonate treatment did not induce dNTP pools in F. oxysporum, in contrast to the response of RNR and dNTP pools to DNA damage and hydroxyurea in several tested organisms. Our results are important because the lack of a feedback mechanism to increase RNR expression in F. oxysporum is expected to sensitize the pathogen to a fungal-specific ribonucleotide inhibitor. The potential impact of our observations on F. oxysporum genome stability and genome evolution is discussed.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-1 av 1
Typ av publikation
tidskriftsartikel (1)
Typ av innehåll
refereegranskat (1)
Författare/redaktör
Sharma, Sushma (1)
Cohen, Rotem (1)
Milo, Shira (1)
Savidor, Alon (1)
Covo, Shay (1)
Lärosäte
Umeå universitet (1)
Språk
Engelska (1)
Forskningsämne (UKÄ/SCB)
Medicin och hälsovetenskap (1)
År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy