rna polymerase - Martin Lab

A New Approach to RNA Synthesis: Immobilization of Stably and Functionally Co-Tethered Promoter DNA and T7 RNA Polymerase

By Martin Posted on July 1, 2024 Posted in Publications, Uncategorized Tagged with in vitro, RNA, rna polymerase, RNA synthesis, T7 RNA polymerase, transcription

Kithmie MalagodaPathiranage, Ruptanu Banerjee, and Craig T. Martin, Nucleic Acids Research, 52(17), 10607-10618. 2024 Current approaches to RNA synthesis/manufacturing require substantial (and incomplete) purification post-synthesis. We have previously demonstrated the synthesis of RNA from a complex in which T7 RNA polymerase …

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A Simple Approach to Improving RNA Synthesis: Salt Inhibition of RNA Rebinding Coupled With Strengthening Promoter Binding by a Targeted Gap in the DNA

By Martin Posted on July 7, 2023 Posted in Publications, Uncategorized Tagged with in vitro, rna polymerase, RNA synthesis, T7 RNA polymerase, transcription

Kithmie MalagodaPathiranage and Craig T. Martin, Methods in Enzymology, 691, 209-222, 2023 T7 RNA polymerase is widely used to synthesize RNA of any length, and long-standing protocols exist to efficiently generate large amounts of RNA. Such synthesis, however, is often plagued …

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High-salt transcription from enzymatically gapped promoters nets higher yields and purity of transcribed RNAs

By Martin Posted on January 31, 2023 Posted in Publications, Uncategorized Tagged with rna polymerase, RNA synthesis, T7 RNA polymerase, transcription

Kithmie MalagodaPathiranage, Elvan Cavac, Tien-Hao Chen, Bijoyita Roy, Craig T Martin Nucleic Acids Research, 51(6), e36 (12 pages) T7 RNA polymerase is commonly used to synthesize large quantities of RNA for a wide variety of applications, from basic science to …

High-salt transcription from enzymatically gapped promoters nets higher yields and purity of transcribed RNAs Read more »

Efficient inhibition of RNA self-primed extension by addition of competing 3’-capture DNA – improved RNA synthesis by T7 RNA polymerase

By Martin Posted on August 8, 2019 Posted in Publications Tagged with in vitro, RNA, rna polymerase, RNA synthesis, T7 RNA polymerase, transcription

Yasaman Gholamalipour, William C. Johnson, & Craig T. Martin, Nucl Acids Res, 47, e118 (7 pages). 2019 In vitro synthesized RNA is used widely in studies of RNA biology, biotechnology and RNA therapeutics. However, in vitro synthesized RNA often contains impurities, such as …

Efficient inhibition of RNA self-primed extension by addition of competing 3’-capture DNA – improved RNA synthesis by T7 RNA polymerase Read more »

Insights into the Mechanism of Initial Transcription in E coli RNA Polymerase. Energetic Mechanisms Leading to Initial Complex Instability and Abortive Cycling

By Posted on September 18, 2013 Posted in Publications Tagged with abortive cycling, bacterial rna polymerase, in vitro, rna polymerase, T7 RNA polymerase, transcription

Satamita Samanta & Craig T. Martin, J. Biol. Chem. 288, 31993-32003, 2013. It has long been known that during initial transcription of the first 8-10 bases of RNA, complexes are relatively unstable, leading to the release of short abortive RNA transcripts. An …

Insights into the Mechanism of Initial Transcription in E coli RNA Polymerase. Energetic Mechanisms Leading to Initial Complex Instability and Abortive Cycling Read more »

New Insights into the Mechanism of Initial Transcription: the T7 RNA Polymerase Mutant P266L Transitions to Elongation at Longer RNA Lengths than Wild Type

By Posted on May 30, 2012 Posted in Publications Tagged with abortive cycling, in vitro, P266L, rna polymerase, T7 RNA polymerase, transcription

Luis Ramírez-Tapia & Craig T. Martin, J. Biol. Chem. 287, 37352-37361, 2012. RNA polymerases undergo substantial structural and functional changes in transitioning from sequence-specific initial transcription to stable and relatively sequence-independent elongation. Initially transcribing complexes are characteristically unstable, yielding short abortive products …

New Insights into the Mechanism of Initial Transcription: the T7 RNA Polymerase Mutant P266L Transitions to Elongation at Longer RNA Lengths than Wild Type Read more »

Direct Tests of the Energetic Basis of Abortive Cycling in Transcription

By Posted on May 30, 2011 Posted in Publications Tagged with abortive cycling, in vitro, initial transcription, initiation, rna polymerase, T7 RNA polymerase, transcription, transcription initiation

Ankit V. Vahia & Craig T. Martin, Biochemistry 50, 7015-7022, 2011. Although the synthesis of RNA from a DNA template is (and must be) a generally very stable process to enable transcription of kilobase transcripts, it has long been known that …

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Transcription Elongation Complex Stability: The Topological Lock

By Posted on May 30, 2009 Posted in Publications Tagged with elongation, forward translocation, rna polymerase, stability, T7 RNA polymerase, topology

Xiaoqing Liu & Craig T. Martin, J. Biol. Chem. 284, 36262-36270, 2009. Transcription machinery from a variety of organisms shows striking mechanistic similarity. Both multi- and single subunit RNA polymerases have evolved an 8-10 base pair RNA:DNA hybrid as a part of …

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