Reference: Kireeva M, et al. (2009) Millisecond phase kinetic analysis of elongation catalyzed by human, yeast, and Escherichia coli RNA polymerase. Methods 48(4):333-45

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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-Mg(2+) 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-Mg(2+) loading, phosphodiester bond synthesis, the processive transition between bonds, and sequence-specific effects on transcription elongation dynamics.

Reference Type
Journal Article
Authors
Kireeva M, Nedialkov YA, Gong XQ, Zhang C, Xiong Y, Moon W, Burton ZF, Kashlev M
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