Evidence map›Paper›PMID 10594120›Full record

ArticlePlant physiology1999

CO(2)-responsive transcriptional regulation of CAH1 encoding carbonic anhydrase is mediated by enhancer and silencer regions in Chlamydomonas reinhardtii.

K i Kucho, K Ohyama, H Fukuzawa

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

23 citing papers in PubMed, 54 citations in OpenAlex.

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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

3 authors at 1 institution in 1 country.

K i KuchoLaboratory of Plant Molecular Biology, Division of Integrated Life Science, Graduate School of Biostudies, Kyoto University, Kyoto 606-8502, Japan.
K Ohyama
H Fukuzawa
Kyoto University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydomonas reinhardtii adapts to the stress of CO(2)-limiting conditions through the induction of a set of genes including CAH1, which encodes a periplasmic carbonic anhydrase. CAH1 is up-regulated under low-CO(2) conditions (air containing 0.04% [v/v] CO(2)) in the presence of light, whereas it is down-regulated under high-CO(2) conditions (5% [v/v] CO(2)) or in the dark. In an effort to identify cis-elements involved in the transcriptional regulation of CAH1, a series of 5'-nested deletions of the region upstream of CAH1 were fused to a promoterless arylsulfatase reporter gene (ARS). The upstream region from -651 to +41 relative to the transcription start site was sufficient to regulate the expression of ARS with kinetics similar to those of endogenous CAH1. Deletion of the region between -651 and -294 resulted in a significant decrease in the level of arylsulfatase activity expressed under low-CO(2) conditions. The 543-bp upstream region from -651 to -109, without any promoter elements, CAAT-box, or TATA-box, could confer CO(2) and light responsiveness on the beta(2)-tubulin minimal promoter. This 543-bp region was divided into two parts: a 358-bp silencer region from -651 to -294, which represses the minimal promoter activity under high-CO(2) conditions, and a 185-bp enhancer region from -293 to -109, which activates the promoter under low-CO(2) conditions in the presence of light.

Indexed as

Enhancer Elements, GeneticGene Expression Regulation, Plant5' Untranslated RegionsAnimalsBase SequenceCarbon DioxideCarbonic AnhydrasesChlamydomonas reinhardtiiGene Expression Regulation, EnzymologicGene SilencingGenes, ReporterLightPlants, Genetically ModifiedRecombinant Fusion ProteinsRNA, MessengerTranscription, Genetic5' Untranslated RegionsCarbon DioxideCarbonic AnhydrasesRecombinant Fusion ProteinsRNA, Messenger

Identifiers

PMID10594120
PMCPMC59500
OpenAlexW2148825898

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.