Search results for "Xeroderma Pigmentosum Group A Protein"

showing 3 items of 3 documents

DICER- and MMSET-catalyzed H4K20me2 recruits the nucleotide excision repair factor XPA to DNA damage sites

2017

The endoribonuclease DICER facilitates chromatin decondensation during lesion recognition following UV exposure. Chitale and Richly show that DICER mediates the recruitment of the methyltransferase MMSET, which catalyzes the dimethylation of histone H4 at lysine 20 and facilitates the recruitment of the nucleotide excision repair factor XPA.

0301 basic medicineRibonuclease IIIDNA RepairDNA damageDNA repairUltraviolet Raysgenetic processes27Article24DEAD-box RNA HelicasesHistones03 medical and health sciencesCell Line TumorHumansResearch ArticlesbiologyLysinefungiEndoribonuclease Dicerfood and beverages37Cell BiologyDNA Repair PathwayHistone-Lysine N-MethyltransferaseCell biologyChromatinXeroderma Pigmentosum Group A ProteinRepressor Proteinsenzymes and coenzymes (carbohydrates)030104 developmental biologyHistoneHEK293 Cellsbiology.proteinBiocatalysisDicerNucleotide excision repairDNA DamageThe Journal of Cell Biology
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Nucleotide excision repair of abasic DNA lesions

2019

AbstractApurinic/apyrimidinic (AP) sites are a class of highly mutagenic and toxic DNA lesions arising in the genome from a number of exogenous and endogenous sources. Repair of AP lesions takes place predominantly by the base excision pathway (BER). However, among chemically heterogeneous AP lesions formed in DNA, some are resistant to the endonuclease APE1 and thus refractory to BER. Here, we employed two types of reporter constructs accommodating synthetic APE1-resistant AP lesions to investigate the auxiliary repair mechanisms in human cells. By combined analyses of recovery of the transcription rate and suppression of transcriptional mutagenesis at specifically positioned AP lesions, w…

DNA RepairTranscription GeneticDNA damageDNA repairGenome Integrity Repair and ReplicationGene Knockout Techniques03 medical and health sciencesEndonucleasechemistry.chemical_compoundTranscription (biology)CRISPR-Associated Protein 9DNA-(Apurinic or Apyrimidinic Site) LyaseGeneticsHumansAP siteCell Line TransformedSkin030304 developmental biologyGene Editing0303 health sciencesBase SequencebiologyGenome Human030302 biochemistry & molecular biologyDNABase excision repairFibroblastsMolecular biologyXeroderma Pigmentosum Group A ProteinDNA-Binding ProteinschemistryMutationbiology.proteinCRISPR-Cas SystemsDNADNA DamageProtein BindingNucleotide excision repairNucleic Acids Research
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Interference by toxic metal ions with zinc-dependent proteins involved in maintaining genomic stability.

2002

Metal ions are essential components of biological systems; nevertheless, even essential elements may have toxic or carcinogenic properties. Thus, besides As(III) and Cd(II), also Ni(II) and Co(II) have been shown previously to disturb different types of DNA repair systems at low, non-cytotoxic concentrations. Since some metals exert high affinities for SH groups, we investigated whether zinc finger structures in DNA-binding motifs of DNA repair proteins are potential targets for toxic metal ions. The bacterial formamidopyrimidine-DNA glycosylase (Fpg protein) involved in base excision repair was inhibited by Cd(II), Cu(II) and Hg(II) with increasing efficiencies, whereas Co(II), As(III), Pb…

Protein FoldingDNA RepairDNA repairCations DivalentPoly ADP ribose polymeraseToxicologymedicine.disease_causechemistry.chemical_compoundMetals HeavymedicineMetallothioneinHumansN-Glycosyl HydrolasesChemistryRNA-Binding ProteinsZinc FingersGeneral MedicineBase excision repairXeroderma Pigmentosum Group A ProteinDNA-Binding ProteinsZincBiochemistryDNA glycosylaseZinc toxicityDNAFood ScienceNucleotide excision repairFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association
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