RNA Polymerase Reaction in Bacteria

S. H. Jun, B. A. Warner, K. S. Murakami

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

Gene expression requires synthesis of a variety of RNAs including protein-coding messenger RNAs (mRNAs), ribosomal RNAs (rRNAs), and transfer RNAs (tRNAs). RNA synthesis is carried out by a protein enzyme called RNA polymerase (RNAP) that proceeds with a unique enzymatic reaction making various products (RNAs) based on DNA template sequences. Bacterial RNAP binds to a specific site of genomic DNA, which is called the promoter DNA, unwinds double-stranded DNA to form the transcription competent open complex (DNA opening), initiates RNA synthesis by nucleotide substrates (de novo or primer-independent transcript initiation), and extends RNA synthesis (transcript elongation) until reaching a termination signal (transcript termination). Transcriptional accuracy of bacterial RNAP is relatively high with an estimated error rate of less than 10-5, which is achieved by high-fidelity transcription and removing misincorporated nucleotides from RNA (proofreading) by using complex motions of mobile domains around the active site. Transcription is an essential process in bacteria, thereby making RNAP an excellent target for antimicrobial drugs (antibiotics) and some RNAP inhibitors have been used for therapeutic applications.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Biological Chemistry
Subtitle of host publicationSecond Edition
PublisherElsevier Inc.
Pages167-172
Number of pages6
ISBN (Electronic)9780123786319
ISBN (Print)9780123786302
DOIs
StatePublished - Feb 15 2013

Fingerprint

DNA-Directed RNA Polymerases
Bacteria
Transcription
Bacterial RNA
DNA
Nucleotides
Gene expression
Elongation
Catalytic Domain
Proteins
Anti-Bacterial Agents
Gene Expression
Substrates
Enzymes
Pharmaceutical Preparations
Therapeutics

All Science Journal Classification (ASJC) codes

  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Jun, S. H., Warner, B. A., & Murakami, K. S. (2013). RNA Polymerase Reaction in Bacteria. In Encyclopedia of Biological Chemistry: Second Edition (pp. 167-172). Elsevier Inc.. https://doi.org/10.1016/B978-0-12-378630-2.00629-0
Jun, S. H. ; Warner, B. A. ; Murakami, K. S. / RNA Polymerase Reaction in Bacteria. Encyclopedia of Biological Chemistry: Second Edition. Elsevier Inc., 2013. pp. 167-172
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Jun, SH, Warner, BA & Murakami, KS 2013, RNA Polymerase Reaction in Bacteria. in Encyclopedia of Biological Chemistry: Second Edition. Elsevier Inc., pp. 167-172. https://doi.org/10.1016/B978-0-12-378630-2.00629-0

RNA Polymerase Reaction in Bacteria. / Jun, S. H.; Warner, B. A.; Murakami, K. S.

Encyclopedia of Biological Chemistry: Second Edition. Elsevier Inc., 2013. p. 167-172.

Research output: Chapter in Book/Report/Conference proceedingChapter

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Jun SH, Warner BA, Murakami KS. RNA Polymerase Reaction in Bacteria. In Encyclopedia of Biological Chemistry: Second Edition. Elsevier Inc. 2013. p. 167-172 https://doi.org/10.1016/B978-0-12-378630-2.00629-0