Evidence map›Paper›PMID 24335082›Full record

ArticleNucleic acids research2014

Small RNAs reveal two target sites of the RNA-maturation factor Mbb1 in the chloroplast of Chlamydomonas.

Karen Loizeau, Yujiao Qu, Sébastien Depp, Vincent Fiechter, Hannes Ruwe, Linnka Lefebvre-Legendre, Christian Schmitz-Linneweber, Michel Goldschmidt-Clermont

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 41 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

8 authors at 2 institutions in 2 countries.

Karen LoizeauDepartment of Botany and Plant Biology and Institute of Genetics and Genomics in Geneva University of Geneva, CH-1211 Geneva 4, Switzerland and Institute of Biology, Molecular Genetics, Humboldt University of Berlin, D-10115 Berlin, Germany.
Yujiao Qu
Sébastien Depp
Vincent Fiechter
Hannes Ruwe
Linnka Lefebvre-Legendre
Christian Schmitz-Linneweber
Michel Goldschmidt-Clermont
Humboldt-Universität zu Berlin · DEUniversity of Geneva · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Many chloroplast transcripts are protected against exonucleolytic degradation by RNA-binding proteins. Such interactions can lead to the accumulation of short RNAs (sRNAs) that represent footprints of the protein partner. By mining existing data sets of Chlamydomonas reinhardtii small RNAs, we identify chloroplast sRNAs. Two of these correspond to the 5'-ends of the mature psbB and psbH messenger RNAs (mRNAs), which are both stabilized by the nucleus-encoded protein Mbb1, a member of the tetratricopeptide repeat family. Accordingly, we find that the two sRNAs are absent from the mbb1 mutant. Using chloroplast transformation and site-directed mutagenesis to survey the psbB 5' UTR, we identify a cis-acting element that is essential for mRNA accumulation. This sequence is also found in the 5' UTR of psbH, where it plays a role in RNA processing. The two sRNAs are centered on these cis-acting elements. Furthermore, RNA binding assays in vitro show that Mbb1 associates with the two elements specifically. Taken together, our data identify a conserved cis-acting element at the extremity of the psbH and psbB 5' UTRs that plays a role in the processing and stability of the respective mRNAs through interactions with the tetratricopeptide repeat protein Mbb1 and leads to the accumulation of protected sRNAs.

Indexed as

5' Untranslated RegionsRNA Processing, Post-TranscriptionalBase SequenceChlamydomonas reinhardtiiChloroplast ProteinsChloroplastsMolecular Sequence DataMutationPhotosystem II Protein ComplexProtein BiosynthesisRegulatory Sequences, Ribonucleic AcidRNA-Binding ProteinsRNA, ChloroplastRNA, MessengerRNA, Small UntranslatedRNA Stability5' Untranslated RegionsChloroplast ProteinsPhotosystem II Protein ComplexRegulatory Sequences, Ribonucleic AcidRNA-Binding ProteinsRNA, ChloroplastRNA, MessengerRNA, Small Untranslated

Identifiers

PMID24335082
PMCPMC3950674
OpenAlexW2007561364

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.