Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(3'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 5'-OH DNA strand. The free DNA strand then rotates around the intact phosphodiester bond on the opposing strand, thus removing DNA supercoils. Finally, in the religation step, the DNA 5'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone. Regulates the alternative splicing of tissue factor (F3) pre-mRNA in endothelial cells. Involved in the circadian transcription of the core circadian clock component ARNTL/BMAL1 by altering the chromatin structure around the ROR response elements (ROREs) on the ARNTL/BMAL1 promoter.
產(chǎn)品描述
該TOP1 ELISA Kit (Rat)的產(chǎn)品描述請參考該產(chǎn)品的說明書
產(chǎn)品特點(diǎn)
ELISA試劑盒
保存建議
2°C to 8°C, -20°C
其他
Aviva Systems Biology總部位于加利福尼亞州圣迭戈,在中國北京設(shè)有辦公室,專注于為研究需求提供多克隆和單克隆抗體、ELISA試劑盒、蛋白質(zhì)和定制服務(wù)。Aviva Systems Biology生產(chǎn)了24,000種經(jīng)過驗證的多克隆抗體,并提供近20,000種ELISA試劑盒,定制實驗室服務(wù)包括蛋白表達(dá)和純化、抗體開發(fā),以及ELISA的開發(fā)、驗證和生產(chǎn)。Aviva Systems Biology為與獨(dú)特物種和靶標(biāo)相關(guān)的研究提供獨(dú)特工具,研究領(lǐng)域包括轉(zhuǎn)錄因子、癌癥、心血管、細(xì)胞生物學(xué)、DNA損傷和修復(fù)、表觀遺傳學(xué)、信號轉(zhuǎn)導(dǎo)、細(xì)胞分化、干細(xì)胞生物學(xué)等等。