| Literature DB >> 19398005 |
Maria Kireeva1, Yuri A Nedialkov, Xue Qian Gong, Chunfen Zhang, Yalin Xiong, Woo Moon, Zachary F Burton, Mikhail Kashlev.
Abstract
Strategies for assembly and analysis of human, yeast, and bacterial RNA polymerase elongation complexes are described, and methods are shown for millisecond phase kinetic analyses of elongation using rapid chemical quench flow. Human, yeast, and bacterial RNA polymerases function very similarly in NTP-Mg2+ commitment and phosphodiester bond formation. A "running start, two-bond, double-quench" protocol is described and its advantages discussed. These studies provide information about stable NTP-Mg2+ loading, phosphodiester bond synthesis, the processive transition between bonds, and sequence-specific effects on transcription elongation dynamics.Entities:
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Year: 2009 PMID: 19398005 PMCID: PMC2721912 DOI: 10.1016/j.ymeth.2009.04.008
Source DB: PubMed Journal: Methods ISSN: 1046-2023 Impact factor: 3.608