" /> OGG1 wt Allele - CISMeF





Preferred Label : OGG1 wt Allele;

NCIt synonyms : HOGG1; MUTM; 8-Oxoguanine DNA Glycosylase wt Allele; HMMH; N-Glycosylase/DNA Lyase Gene; OGH1; MMH;

NCIt definition : Human OGG1 wild-type allele is located in the vicinity of 3p26.2 and is approximately 18 kb in length. This allele, which encodes N-glycosylase/DNA lyase protein, plays a role in base excision repair. Defects in the OGG1 gene are associated with tumor formation.;

NCIt note : The OGG1 gene (OGG1 family 1) encodes an enzyme in base excision repair. OGG1 incises DNA at 8-oxoguanine residues and excises 7,8-dihydro-8-oxoguanine and 2,6-diamino-4-hydroxy-5-n-methylformamidopyrimidine (FAPY) from damaged DNA. OGG1 also has activities of beta-lyase that nicks DNA 3-prime to the lesion and endonuclease that cleaves DNA near apurinic or apyrimidinic sites to products with 5-prime-phosphate. Alternative splicing of the C-terminal region of this gene classifies splice variants into two major groups, type 1 and type 2, depending on the last exon of the sequence. Type 1 variants end with exon 7 and type 2 end with exon 8. All variants share the N-terminal region in common (1a/alpha, 1b, 1c, 2a/beta, 2b, 2c, 2d and 2e) and 1a is the prevalent form. OGG1 is ubiquitous and located in nucleus (isoform 1a) and mitochondria (isoform 2a).;

GenBank Accession Number : NM_016819;

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14/05/2024


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