Evidence map›Paper›PMID 18493045›Full record

ArticleGenetics2008

Genome-based analysis of Chlamydomonas reinhardtii exoribonucleases and poly(A) polymerases predicts unexpected organellar and exosomal features.

Sara L Zimmer, Zhangjun Fei, David B Stern

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Genetics, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 26 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Organization and expression of organellar genomes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2010
    Review
  8. Uridylation of mature miRNAs and siRNAs by the MUT68 nucleotidyltransferase promotes their degradation in Chlamydomonas.Proceedings of the National Academy of Sciences of the United States of America · 2010
    Article
  9. Article
  10. Adenylation of plant miRNAs.Nucleic acids research · 2009
    Article
  11. Article
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 2 institutions in 1 country.

Sara L ZimmerDepartment of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA.
Zhangjun Fei
David B Stern
Cornell University · USIthaca College · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enzymes from several gene families modify RNA molecules at their extremities. These reactions occur in several cellular compartments and affect every class of RNA. To assess the diversity of a subclass of these enzymes, we searched Chlamydomonas for open reading frames (ORFs) potentially encoding exoribonucleases, poly(A) polymerases, and proteins known to associate with and/or regulate them. The ORFs were further analyzed for indications of protein localization to the nucleus, cytosol, mitochondrion, and/or chloroplast. By comparing predicted proteins with homologs in Arabidopsis and yeast, we derived several tentative conclusions regarding RNA 5'- and 3'-end metabolism in Chlamydomonas. First, the alga possesses only one each of the following likely organellar enzymes: polynucleotide phosphorylase, hydrolytic exoribonuclease, poly(A) polymerase, and CCA transferase, a surprisingly small complement. Second, although the core of the nuclear/cytosolic exosome decay complex is well conserved, neither nucleus-specific activators nor the cytosolic exosome activators are present. Finally, our discovery of nine noncanonical poly(A) polymerases, a divergent family retaining the catalytic domains of conventional poly(A) polymerases, leads to the hypothesis that polyadenylation may play an especially important regulatory role throughout the Chlamydomonas cell, stabilizing some transcripts and targeting degradation machinery to others.

Indexed as

PhylogenyAnimalsBase SequenceChlamydomonas reinhardtiiCluster AnalysisComputational BiologyExoribonucleasesGenomicsMolecular Sequence DataMultigene FamilyOpen Reading FramesRNARNA NucleotidyltransferasesSpecies SpecificityExoribonucleasesRNARNA Nucleotidyltransferases

Identifiers

PMID18493045
PMCPMC2390592
OpenAlexW2103613996

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.