Evidence map›Paper›PMID 11441018›Full record

ArticleThe Journal of biological chemistry2001

Regulation of an IMP dehydrogenase gene and its overexpression in drug-sensitive transcription elongation mutants of yeast.

R J Shaw, J L Wilson, K T Smith, D Reines

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2001. 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
1.5field-weighted citation impact, top 19% 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, 61 citations in OpenAlex.

  1. In thePNAS nexus · 2026
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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

4 authors at 1 institution in 1 country.

R J ShawDepartment of Biochemistry, Emory University School of Medicine, Atlanta, Georgia 30322, USA.
J L Wilson
K T Smith
D Reines
Emory University · US

Funding

PREDOCTORAL TRAINING PROGRAM IN GENETICST32GM008490 · NIGMS · EMORY UNIVERSITY · PI BOSS, JEREMY M. · 1993 to 2022
$8.0M
RNA POLYMERASE II ELONGATION COMPLEX--STRUCTURE/FUNCTIONR01GM046331 · NIGMS · EMORY UNIVERSITY · PI REINES, DANIEL · 1991 to 2013
$3.5M
NIGMS NIH HHS GM46331NIGMS NIH HHS R01 GM046331NIGMS NIH HHS T32 GM008490
6 · The paper itself

Abstract

IMP dehydrogenase is a rate-limiting enzyme involved in the synthesis of GTP. In mammalian cells it is regulated with respect to growth rate and is the target of numerous therapeutic agents. Mutations in the RNA polymerase II elongation machinery render yeast sensitive to inhibitors of IMP dehydrogenase and defective in inducing transcription of one of the IMP dehydrogenase-encoding genes, IMD2. Here we show that loss of IMD2, but not IMD1, IMD3, or IMD4, conferred upon yeast the same drug sensitivity found in elongation mutants. We tested whether the drug sensitivity of elongation mutants is due to their inability to induce IMD2 by providing them with exogenous copies of the gene. In some elongation mutants, overexpression reversed drug sensitivity and a transcriptional defect. Overexpression in mutants with a more severe phenotype partially suppressed drug sensitivity but was inconsequential in reversing a defect in transcription. These findings suggest that the drug sensitivity of elongation mutants is largely but not solely attributable to defects in the ability to induce IMD2, because transcription is compromised even when IMD2 mRNA levels are adequate. We describe two DNA sequence elements in the promoter of the gene that regulate it. We also found that IMD2 mRNA abundance is coupled to cell growth rate. These findings show that yeast possess a conserved system that gauges nucleotide pools and cell growth rate and responds through a uniquely regulated member of the IMD gene family.

Indexed as

Gene Expression Regulation, EnzymologicGenes, ReporterGenotypeIMP DehydrogenaseIsoenzymesKineticsMutagenesisMycophenolic AcidPlasmidsPolymerase Chain ReactionPromoter Regions, GeneticRNA, MessengerRNA Polymerase IISaccharomyces cerevisiaeTranscription, GeneticIMP DehydrogenaseIsoenzymesMycophenolic AcidRNA, MessengerRNA Polymerase II

Identifiers

PMID11441018
PMCPMC3371605
OpenAlexW1977627171

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.