Evidence map›Paper›PMID 9136006›Full record

ArticleGenetics1997

FAR1, a negative regulatory locus required for the repression of the nitrate reductase gene in Chlamydomonas reinhardtii.

D Zhang, P A Lefebvre

Abstract read
In one paragraph

Article in Genetics, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 43% 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

12 citing papers in PubMed, 38 citations in OpenAlex.

  1. Article
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  5. Review
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  8. Paths toward algal genomics.Plant physiology · 2005
    Review
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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

2 authors at 1 institution in 1 country.

D ZhangDepartment of Genetics and Cell Biology, University of Minnesota, St. Paul 55108, USA.
P A Lefebvre
University of Minnesota · US

Funding

REGULATION OF FLAGELLAR ASSEMBLY IN CHLAMYDOMONASR01GM034437 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI LEFEBVRE, PAUL A. · 1985 to 2009
$1.9M
NIGMS NIH HHS GM-34437
6 · The paper itself

Abstract

In Chlamydomonas reinhardtii, the genes required for nitrate assimilation, including the gene encoding nitrate reductase (NIT1), are subject to repression by ammonia. To study the mechanism of ammonia repression, we employed two approaches to search for mutants with defective repression of NIT1 gene expression. (1) PF14, a gene required for flagellar function, was used as a reporter gene for expression from the NIT1 promoter. When introduced into a pf14 mutant host, the NIT1;PF14 chimeric construct produced a transformant (T10-10B) with a conditional swimming phenotype. Spontaneous mutants with defective ammonia repression of the NIT1 promoter were screened for by isolating cells that gained constitutive motility. (2) Insertional mutagenesis was performed, followed by screening for chlorate sensitivity in the presence of ammonia ion. One insertional mutant and six spontaneous mutants were allelic and defined a new gene, FAR1 (free from ammonia repression). FAR1 was mapped to Linkage Group I, 7.7 cM to the right of the centromere. The far1-1 mutant strain was used to clone DNA adjacent to the site of plasmid insertion, which was then used as a hybridization probe to clone the FAR1 gene from wild type.

Indexed as

Cell Cycle ProteinsRepressor ProteinsSaccharomyces cerevisiae ProteinsAnimalsChlamydomonas reinhardtiiCloning, MolecularCyclin-Dependent Kinase Inhibitor ProteinsFungal ProteinsGenes, ReporterGenetic Complementation TestMutagenesis, InsertionalMutationNitrate ReductaseNitrate ReductasesPromoter Regions, GeneticRecombination, GeneticCell Cycle ProteinsCyclin-Dependent Kinase Inhibitor ProteinsFAR1 protein, S cerevisiaeFungal ProteinsNitrate ReductaseNitrate ReductasesRepressor ProteinsSaccharomyces cerevisiae Proteins

Identifiers

PMID9136006
PMCPMC1207931
OpenAlexW1947924041

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.