Evidence map›Paper›PMID 9405719›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1997

Leaf-specifically expressed genes for polypeptides destined for chloroplasts with domains of sigma70 factors of bacterial RNA polymerases in Arabidopsis thaliana.

K Isono, M Shimizu, K Yoshimoto, Y Niwa, K Satoh, A Yokota, H Kobayashi

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
3.7field-weighted citation impact, top 6% 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

45 citing papers in PubMed, 135 citations in OpenAlex.

  1. Article
  2. Frontiers in plant science · 2019
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  15. Sigma factor phosphorylation in the photosynthetic control of photosystem stoichiometry.Proceedings of the National Academy of Sciences of the United States of America · 2010
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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

7 authors at 1 institution in 1 country.

K IsonoLaboratory of Plant Molecular Physiology, Research Institute of Innovative Technology for the Earth, 9-2 Kizugawadai, Kizu-cho, Soraku-gun, Kyoto 619-02, Japan.
M Shimizu
K Yoshimoto
Y Niwa
K Satoh
A Yokota
H Kobayashi
Research Institute of Innovative Technology for the Earth · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Genes for sigma-like factors of bacterial-type RNA polymerase have not been characterized from any multicellular eukaryotes, although they probably play a crucial role in the expression of plastid photosynthesis genes. We have cloned three distinct cDNAs, designated SIG1, SIG2, and SIG3, for polypeptides possessing amino acid sequences for domains conserved in sigma70 factors of bacterial RNA polymerases from the higher plant Arabidopsis thaliana. Each gene is present as one copy per haploid genome without any additional sequences hybridized in the genome. Transient expression assays using green fluorescent protein demonstrated that N-terminal regions of the SIG2 and SIG3 ORFs could function as transit peptides for import into chloroplasts. Transcripts for all three SIG genes were detected in leaves but not in roots, and were induced in leaves of dark-adapted plants in rapid response to light illumination. Together with results of our previous analysis of tissue-specific regulation of transcription of plastid photosynthesis genes, these results indicate that expressed levels of the genes may influence transcription by regulating RNA polymerase activity in a green tissue-specific manner.

Indexed as

Genes, PlantAmino Acid SequenceArabidopsisArabidopsis ProteinsBacterial ProteinsChloroplastsDNA-Directed RNA PolymerasesMolecular Sequence DataPeptidesSequence AlignmentSigma FactorArabidopsis ProteinsBacterial ProteinsDNA-Directed RNA PolymerasesPeptidesSIG2 protein, ArabidopsisSigma Factor

Identifiers

PMID9405719
PMCPMC25143
OpenAlexW1996958791

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.