Evidence map›Paper›PMID 17202255›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

Chloroplast biogenesis: the use of mutants to study the etioplast-chloroplast transition.

Katrin Philippar, Tina Geis, Iryna Ilkavets, Ulrike Oster, Serena Schwenkert, Jörg Meurer, Jürgen Soll

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

30 citing papers in PubMed, 66 citations in OpenAlex.

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  5. A Protochlorophyllide (Pchlide)Frontiers in plant science · 2019
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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

7 authors at 2 institutions in 2 countries.

Katrin PhilipparDepartment Biology I, Botany, Ludwig-Maximilians-University of Munich, Menzingerstrasse 67, D-80638 Munich, Germany.
Tina Geis
Iryna Ilkavets
Ulrike Oster
Serena Schwenkert
Jörg Meurer
Jürgen Soll
University of California, Berkeley · USLudwig-Maximilians-Universität München · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In angiosperm plants, the etioplast-chloroplast transition is light-dependent. A key factor in this process is the protochlorophyllide oxidoreductase A (PORA), which catalyzes the light-induced reduction of protochlorophyllide to chlorophyllide. The import pathway of the precursor protein prePORA into chloroplasts was analyzed in vivo and in vitro by using homozygous loss-of-function mutants in genes coding for chlorophyllide a oxygenase (CAO) or for members of the outer-envelope solute-channel protein family of 16 kDa (OEP16), both of which have been implied to be key factors for the import of prePORA. Our in vivo analyses show that cao or oep16 mutants contain a normally structured prolamellar body that contains the protochlorophyllide holochrome. Furthermore, etioplasts from cao and oep16 mutants contain PORA protein as found by mass spectrometry. Our data demonstrate that both CAO and OEP16 are dispensable for chloroplast biogenesis and play no central role in the import of prePORA in vivo and in vitro as further indicated by protein import studies.

Indexed as

MutationArabidopsisArabidopsis ProteinsBase SequenceChlorophyllidesChloroplastsDNA PrimersGenes, PlantIon ChannelsOxygenasesPhotobiologyProtein TransportProtochlorophyllideArabidopsis Proteinschlorophyll a oxygenasechlorophyllide achlorophyllide bChlorophyllidesDNA PrimersIon ChannelsOEP16-L protein, ArabidopsisOEP16-S protein, ArabidopsisOxygenasesProtochlorophyllide

Identifiers

PMID17202255
PMCPMC1766443
OpenAlexW2164781774

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.