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Ammonium hexachloroiridate (IV) CAS: 16940-92-4

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Nọmba katalọgụ: XD90606
CAS: 16940-92-4
Ụdị molekụla: H8Cl6IrN2
Ibu Molecular: 441.012
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Nọmba katalọgụ XD90606
Aha ngwaahịa Ammonium hexachloroiridate (IV)
CAS 16940-92-4
Usoro ihe omimi H8Cl6IrN2
Ibu molekụla 441.012
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Nbibi oxidative na ntọala DNA na-ebutekarị nhazi nke purines oxidized, karịsịa 7,8-dihydro-8-oxoguanine (8-oxoG) na 7,8-dihydro-8-oxoadenine (8-oxoA), nke mbụ bụ nke ọma- amaara ọnya mutagenic.Ebe ọ bụ na 8-oxoG na-adị ngwa ngwa ka ọ bụrụ oxidation ọzọ ma e jiri ya tụnyere ntọala nkịtị, ntinye nke ntọala n'oge njikọ DNA na-emegide ụdị oxidized nke 8-oxoG na vitro.A na-ebu ụzọ gwọọ template synthetic nke nwere otu ọnya 8-oxoG site na iji otu-electron oxidants dị iche iche ma ọ bụ n'okpuru ọnọdụ ikuku oxygen dị iche iche wee tinyezie mgbatị primer site na Klenow fragment exo- (Kf exo-), nwa ehi thymus DNA polymerase alpha (pol alpha). ) ma ọ bụ DNA polymerase beta (pol beta).N'ikwekọ na akụkọ ndị gara aga, a na-etinye dAMP na dCMP na-ahọrọ iche na 8-oxoG na DNA polymerases atọ.N'ụzọ na-akpali mmasị, ahụrụ oxidation nke 8-oxoG ka ọ na-ebute dAMP na ntinye dGMP na-emegide ọnya ahụ site na Kf exo- na mgbochi na-adịru nwa oge nke mgbatị primer o na-eme na saịtị nke gbanwetụrụ.Ọzọkwa, ọnya ahụ bụ ngọngọ n'oge njikọ DNA site na pol alfa na pol beta.Nlele na 8-oxoA-modified template oligonucleotide gosiri na ma 8-oxoA na ụdị oxidized nke 8-oxoA ntinye aka dTMP nke Kf exo-.Nyocha spectrometric Mass nke 8-oxoG-nwere oligonucleotides tupu na mgbe oxidation na IrCl62-dakọtara na oxidation nke bụ isi saịtị 8-oxoG, na-ebute nguzobe nke guanidinohydantoin moiety dị ka isi ngwaahịa.Enwetaghị ihe akaebe maka nhazi saịtị dị ala.Nsonaazụ ndị a na-egosi na ụdị oxidized nke 8-oxoG, ikekwe guanidinohydantoin, nwere ike iduzi agụhie na nhiehie nke dNTP n'oge njikọ DNA.Ọ bụrụ na usoro dị otú ahụ mere na vivo, ọ ga-anọchi anya ọnya mutagenic na-eduga na ntụgharị G->T na G->C.Agbanyeghị, ụdị oxidized kwekọrọ nke 8-oxoA bụ isi na-egosi ntinye ziri ezi nke T n'oge njikọ DNA na Kf exo-.


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    Ammonium hexachloroiridate (IV) CAS: 16940-92-4