Evidence map›Paper›PMID 9817756›Full record

ArticleThe Journal of cell biology1998

Tic20 and Tic22 are new components of the protein import apparatus at the chloroplast inner envelope membrane.

A Kouranov, X Chen, B Fuks, D J Schnell

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of cell biology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 100 papers.

0numbers the graph read from it
0cells of the map it votes in
100citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

100 citing papers in PubMed, 267 citations in OpenAlex.

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  9. Proceedings of the National Academy of Sciences of the United States of America · 2022
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  10. Review
  11. Genetic Mapping of theFrontiers in plant science · 2022
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  12. Article
  13. Article
  14. Article
  15. Coexpressed subunits of dual genetic origin define a conserved supercomplex mediating essential protein import into chloroplasts.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  16. Article
  17. Review
  18. Article
  19. The Photosynthetic Adventure of Paulinella Spp.Results and problems in cell differentiation · 2020
    Article
  20. Verification of theInternational journal of molecular sciences · 2019
    Article

40 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

A KouranovDepartment of Biological Sciences, Rutgers, The State University of New Jersey, Newark, New Jersey 07102, USA.
X Chen
B Fuks
D J Schnell
Rutgers, The State University of New Jersey · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two components of the chloroplast envelope, Tic20 and Tic22, were previously identified as candidates for components of the general protein import machinery by their ability to covalently cross-link to nuclear-encoded preproteins trapped at an intermediate stage in import across the envelope (Kouranov, A., and D.J. Schnell. 1997. J. Cell Biol. 139:1677-1685). We have determined the primary structures of Tic20 and Tic22 and investigated their localization and association within the chloroplast envelope. Tic20 is a 20-kD integral membrane component of the inner envelope membrane. In contrast, Tic22 is a 22-kD protein that is located in the intermembrane space between the outer and inner envelope membranes and is peripherally associated with the outer face of the inner membrane. Tic20, Tic22, and a third inner membrane import component, Tic110, associate with import components of the outer envelope membrane. Preprotein import intermediates quantitatively associate with this outer/inner membrane supercomplex, providing evidence that the complex corresponds to envelope contact sites that mediate direct transport of preproteins from the cytoplasm to the stromal compartment. On the basis of these results, we propose that Tic20 and Tic22 are core components of the protein translocon of the inner envelope membrane of chloroplasts.

Indexed as

Membrane Transport ProteinsPlant ProteinsAmino Acid SequenceBase SequenceBiological TransportCarrier ProteinsChloroplastsChromatography, AffinityIntracellular MembranesMembrane ProteinsMolecular Sequence DataPisum sativumCarrier ProteinsMembrane ProteinsMembrane Transport ProteinsPlant ProteinsTic20 protein, Pisum sativumTic22 protein, Pisum sativum

Identifiers

PMID9817756
PMCPMC2132967
OpenAlexW2144283041

What OpenQuestion holds

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LicenceCC BY-NC-SA
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.