Evidence map›Paper›PMID 9878067›Full record

ArticleThe EMBO journal1999

In vitro characterization of the tobacco rpoB promoter reveals a core sequence motif conserved between phage-type plastid and plant mitochondrial promoters.

K Liere, P Maliga

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The EMBO journal, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
3.2field-weighted citation impact, top 8% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 123 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Plastid Gene Transcription: An Update on Promoters and RNA Polymerases.Methods in molecular biology (Clifton, N.J.) · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Comparative Analysis of ChloroplastFrontiers in plant science · 2017
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

K LiereWaksman Institute, Rutgers, the State University of New Jersey, 190 Frelinghuysen Road, Piscataway, NJ 08854-8020, USA.
P Maliga
Rutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We report here the in vitro characterization of PrpoB-345, the tobacco rpoB promoter recognized by NEP, the phage-type plastid RNA polymerase. Transcription extracts were prepared from mutant tobacco plants lacking PEP, the Escherichia coli-like plastid-encoded RNA polymerase. Systematic dissection of a approximately 1 kb fragment determined that the rpoB promoter is contained in a 15-nucleotide segment (-14 to +1) upstream of the transcription initiation site (+1). Point mutations at every nucleotide reduced transcription, except at the -5 position which was neutral. Critical for rpoB promoter function was a CRT-motif (CAT or CGT) at -8 to -6 (transcription <30%), defining it as the promoter core. The core CAT sequence is also present in the maize rpoB promoter, which is faithfully recognized by tobacco extracts. Alignment of NEP promoters identified a CATA or TATA (=YATA) sequence at the rpoB core position, also present in plant mitochondrial promoters. Furthermore, NEP and the phage T7 RNA polymerase exhibit similar sensitivity to inhibitors of transcription. These data indicate that the nuclear RpoZ gene, identified by sequence conservation with mitochondrial RNA polymerases, encodes the NEP catalytic subunit.

Indexed as

Plants, ToxicPromoter Regions, GeneticBacteriophagesBase SequenceConserved SequenceDNA-Directed RNA PolymerasesDNA, PlantDNA PrimersEscherichia coliGenes, PlantMitochondriaMolecular Sequence DataNicotianaPlant ProteinsPlastidsPoint MutationDNA-Directed RNA PolymerasesDNA, PlantDNA PrimersPlant ProteinsRpoB protein, Oryza sativa

Identifiers

PMID9878067
PMCPMC1171119
OpenAlexW2154333569

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.