Evidence map›Paper›PMID 9193081›Full record

ArticlePlant physiology1997

Importin alpha from Arabidopsis thaliana is a nuclear import receptor that recognizes three classes of import signals.

H M Smith, G R Hicks, N V Raikhel

Open access · greenAbstract read
In one paragraph

Article in Plant physiology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 91 citations in OpenAlex.

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  16. The nuclear pore complex.Plant molecular biology · 1998
    Review
  17. Review
  18. 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

3 authors at 1 institution in 1 country.

H M SmithMichigan State University-Department of Energy Plant Research Laboratory, East Lansing 48824-1312, USA.
G R Hicks
N V Raikhel
Michigan State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Protein import into the nucleus is a two-step process. In vitro import systems from vertebrate cell extracts have shown several soluble factors are required. One of these factors is the receptor importin alpha, which binds to nuclear localization signals (NLS) in vitro. We previously cloned an importin alpha homolog from Arabidopsis thaliana (At-IMP alpha) and demonstrated that this protein was not depleted from tobacco (Nicotiana tabacum) protoplasts after permeabilization of the plasma membrane, (Hicks et al., 1996). To determine if At-IMP alpha is functional, we used an in vitro NLS-binding assay. We found that At-IMP alpha is specific, and the receptor is able to recognize three classes of NLS identified in plants. Purified antibodies to At-IMP alpha were used to determine the in vivo location of importin alpha in tobacco protoplasts. Importin alpha is found in the cytoplasm and nucleus, and it is most highly concentrated at the nuclear envelope. The biochemical properties of nuclear importin alpha and localization studies using purified nuclei demonstrate that importin alpha is tightly associated with the plant nucleus. Moreover, these results suggest that a fraction of nuclear importin alpha interacts with the nuclear pore complex.

Indexed as

alpha KaryopherinsAmino Acid SequenceArabidopsisBiological TransportCell CompartmentationCell NucleusMolecular Sequence DataNicotianaNuclear EnvelopeNuclear ProteinsPlant ProteinsPlants, ToxicProtein BindingProtein Sorting SignalsReceptors, Cytoplasmic and Nuclearalpha KaryopherinsNuclear ProteinsPlant ProteinsProtein Sorting SignalsReceptors, Cytoplasmic and Nuclear

Identifiers

PMID9193081
PMCPMC158320
OpenAlexW1992314061

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.