Evidence map›Paper›PMID 16339727›Full record

ArticleEukaryotic cell2005

Sequencing of random Euplotes crassus macronuclear genes supports a high frequency of +1 translational frameshifting.

Lawrence A Klobutcher

Abstract read
In one paragraph

Article in Eukaryotic cell, 2005. 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
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Article
  2. Nontriplet feature of genetic code inProceedings of the National Academy of Sciences of the United States of America · 2023
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  4. Article
  5. Review
  6. Article
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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

1 author.

Lawrence A KlobutcherDepartment of Molecular, Microbial and Structural Biology, University of Connecticut Health Center, Farmington, CT 06032, USA. klobutcher@nso2.uchc.edu

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Programmed translational frameshifts have been identified in genes from a broad range of organisms, but typically only a very few genes in a given organism require a frameshift for expression. In contrast, a recent analysis of gene sequences available in GenBank from ciliates in the genus Euplotes indicated that >5% required one or more +1 translational frameshifts to produce their predicted protein products. However, this sample of genes was nonrandom, biased, and derived from multiple Euplotes species. To test whether there truly is an abundance of frameshift genes in Euplotes, and to more accurately assess their frequency, we sequenced a random sample of 25 cloned genes/macronuclear DNA molecules from Euplotes crassus. Three new candidate +1 frameshift genes were identified in the sample that encode a membrane occupation and recognition nexus (MORN) repeat protein, a C(2)H(2)-type zinc finger protein, and a Ser/Thr protein kinase. Reverse transcription-PCR analyses indicate that all three genes are expressed in vegetatively proliferating cells and that the mRNAs retain the requirement of a frameshift. Although the sample of sequenced genes is relatively small, the results indicate that the frequency of genes requiring frameshifts in E. crassus is between 3.7% and 31.7% (at a 95% confidence interval). The current and past data also indicate that frameshift sites are found predominantly in genes that likely encode nonabundant proteins in the cell.

Indexed as

Genes, ProtozoanSequence Analysis, DNAAnimalsCell Culture TechniquesChromosome MappingChromosomesCloning, MolecularCodon, InitiatorCodon, TerminatorComputational BiologyDNA, ProtozoanEuplotesFrameshifting, RibosomalGene Expression RegulationGene FrequencyOpen Reading FramesCodon, InitiatorCodon, TerminatorDNA, ProtozoanRNA, MessengerRNA, Protozoan

Identifiers

PMID16339727
PMCPMC1317503

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Registered trials

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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.