Cited by 84Genomics and Chromatin DynamicsRNA Research and SplicingDevelopmental Biology and Gene Regulation

Rapid Rates of Pol II Elongation in the Drosophila Embryo

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Fukaya, Takashi, Lim, Bomyi, Levine, Michael·2017·Current Biology

Abstract

Elongation of RNA polymerase II (Pol II) is thought to be an important mechanism for regulating gene expression [1]. We measured the first wave of de novo transcription in living Drosophila embryos using dual-fluorescence detection of nascent transcripts containing 5' MS2 and 3' PP7 RNA stem loops. Pol II elongation rates of 2.4-3.0 kb/min were observed, approximately twice as fast as earlier estimates [2-6]. The revised rates permit substantial levels of zygotic gene activity prior to the mid-blastula transition. We also provide evidence that variable rates of elongation are not a significant source of differential gene activity, suggesting that transcription initiation and Pol II release are the key determinants of gene control in development.

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Crossref · 10.1016/j.cub.2017.03.069

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  • Using constructs carrying arrays of MS2 and PP7 repeats in the 5′ and 3′ regions of the same gene, RNA Pol II speed was estimated to range from 0.84 kb/min to 3.66 kb/min.

    “By using constructs carrying arrays of MS2 and PP7 repeats in the 5′ and 3′ regions of the same gene, RNA Pol II speed was estimated to range from 0.84 kb/min to 3.66 kb/min (Hocine et al, 2013; Fukaya et al, 2017).”

    From RNA polymerase II speed: a key player in controlling and adapting transcriptome composition (2021) · cites this paper as Fukaya et al, 2017

    The Results and Discussion describe a reporter gene with 5′ MS2 and 3′ PP7 repeats, used to estimate Pol II elongation speed. But the paper reports rates of 2.4–3.0 kb/min in early Drosophila embryos, not the attributed range of 0.84–3.66 kb/min. Page numbers are unavailable in our copy. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • The presence of introns increases transcription speed.

    “and the presence of introns increases transcription speed (Fukaya et al, 2017).”

    From RNA polymerase II speed: a key player in controlling and adapting transcriptome composition (2021) · cites this paper as Fukaya et al, 2017

    In Results and Discussion, the intron-containing yellow reporter showed approximately 20% faster Pol II elongation than intron-less lacZ. The authors explicitly say they cannot exclude DNA sequence features, rather than the intron, as the cause, so the citation does not establish the claim as stated. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • RNA Pol II velocity has been suggested to affect the timing of mRNA accumulation and could thus play a role in the timing of some developmental regulatory processes.

    “Nevertheless, RNA Pol II velocity has also been suggested to affect the timing of mRNA accumulation and could thus play a role in the timing of some developmental regulatory processes (Thummel et al, 1990; Fukaya et al, 2017; Maslon et al, 2019).”
  • Other studies have found no relationship between RNA Pol II speed and expression levels.

    “However, other studies have found no relationship between RNA Pol II speed and expression levels (Singh & Padgett, 2009; Fukaya et al, 2017).”

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Research works printed but not linked: 1

  1. [23]Hocine S Raymond P Zenklusen D Chao JA Singer RH 2013 Single-molecule analysis of gene expression using two-color RNA labeling in live yeast Nat Methods 10 119 121 23263691 PMC3899799

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Authors
Fukaya, T., Lim, B., & Levine, M.
Affiliations
Princeton University (US)
Corresponding author
  • Fukaya, Takashi
  • Levine, Michael
Venue
Current Biology
Publisher
Elsevier BV
Published
2017-05
Volume
27
Issue
9
Pages
1387-1391
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2608376949
Cited by
84
References
27
Citations by year
2026: 2 · 2025: 9 · 2024: 5 · 2023: 12 · 2022: 7 · 2021: 16 · 2020: 7 · 2019: 10 · 2018: 15 · 2017: 1
FWCI
3.69
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Human Frontier Science Program
  • National Institutes of Health (1F32GM122186, U01EB021239, GM118147)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
RNA polymerase II elongation, elongation rate, Drosophila embryo, midblastula transition, nascent RNA, transcription initiation, gene expression regulation, embryonic development
MeSH terms
Animals, Drosophila, Embryo, Nonmammalian, Female, Gene Expression Regulation, Male, Promoter Regions, Genetic, RNA Polymerase II, Drosophila Proteins, Transcription Initiation, Genetic, Transcription Elongation, Genetic

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