Evidence map›Paper›PMID 15082543›Full record

ArticleGenetics2004

Severe impairment of growth and differentiation in a Neurospora crassa mutant lacking all heterotrimeric G alpha proteins.

Ann M Kays, Katherine A Borkovich

Open access · bronzeAbstract read
In one paragraph

Article in Genetics, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

31 citing papers in PubMed, 53 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

2 authors at 1 institution in 1 country.

Ann M KaysDepartment of Microbiology and Molecular Genetics, University of Texas-Houston Medical School, Houston, Texas 77031, USA.
Katherine A Borkovich
The University of Texas Health Science Center at Houston · US

Funding

G PROTEINS AND SIGNAL TRANSDUCTION IN NEUROSPORA CRASSAR01GM048626 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI BORKOVICH, KATHERINE A · 1998 to 2006
$1.4M
G PROTEINS AND SIGNAL TRANSDUCTION IN NEUROSPORA CRASSAR29GM048626 · NIGMS · UNIVERSITY OF TEXAS HLTH SCI CTR HOUSTON · PI BORKOVICH, KATHERINE A · 1993 to 1997
–
NIGMS NIH HHS GM-48626
6 · The paper itself

Abstract

Heterotrimeric G alpha proteins play a critical role in regulating growth and differentiation in filamentous fungi. No systematic analysis of functional relationships between subunits has been investigated. This study explores the relative contributions of Neurospora crassa G alpha subunits, gna-1, gna-2, and gna-3, in directing development by analyzing strains deleted for various combinations of these genes. Although viable, mutants lacking all G alpha subunits or gna-1 and gna-3 are severely restricted in apical growth, forming small colonies. These strains form little aerial hyphae during asexual development on solid medium and exhibit inappropriate sporulation in submerged cultures. Similar to all strains carrying the Delta gna-1 mutation, these mutants are female sterile. Defects attributed to gna-2 are observed only in conjunction with the loss of gna-1 or gna-3, suggesting a minor role for this G alpha in N. crassa biology. Results from analysis of adenylyl cyclase and epistatic studies with the cAMP-dependent protein kinase regulatory subunit (mcb) indicate separate functions for GNA-1 and GNA-3 in cAMP metabolism and additional cAMP-independent roles for GNA-1. These studies indicate that although G alpha subunits are not essential for viability in filamentous fungi, their loss results in an organism that cannot effectively forage for nutrients or undergo asexual or sexual reproduction.

Indexed as

Gene DeletionCell DifferentiationHeterotrimeric GTP-Binding ProteinsModels, BiologicalNeurospora crassaRecombination, GeneticHeterotrimeric GTP-Binding Proteins

Identifiers

PMID15082543
PMCPMC1470763
OpenAlexW2124099910

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.