产品描述说明： T7 RNA Polymerase is a highly processive DNA-dependent RNA polymerase that catalyzes the transcription of class II and class III viral genes. It recognizes a specific promoter sequence and enters first into an 'abortive phase' where very short transcripts are synthesized and released before proceeding to the processive transcription of long RNA chains. T7 RNA Polymerase unwinds the double-stranded DNA to expose the coding strand for templating. It participates in the initiation of viral DNA replication presumably by making primers accessible to the DNA polymerase, thus facilitating the DNA opening. Also, T7 RNA Polymerase plays a role in viral DNA packaging, probably by pausing the transcription at the right end of concatemer junction to allow packaging complex recruitment and beginning of the packaging process. In eukaryotes three forms of this enzyme have been distinguished on the basis of sensitivity of alpha-amanitin, and the type of RNA synthesized. 品牌简介： 一家老牌抗体原产企业，专注于研发多种指标单克隆抗体和多克隆抗体，产品涉及细胞通路、细胞生物学、神经生物学、表观遗传学、癌症等多个领域；标签抗体和GFP抗体种类丰富；同时专注各类荧光二抗和Trueblot特色产品的开发。