Evidence map›Paper›PMID 10679025›Full record

ArticleMolecular biology of the cell2000

Monoclonal antibodies to NTF2 inhibit nuclear protein import by preventing nuclear translocation of the GTPase Ran.

S M Steggerda, B E Black, B M Paschal

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2000. 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
2.0field-weighted citation impact, top 14% 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, 44 citations in OpenAlex.

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  17. Transport into and out of the nucleus.Microbiology and molecular biology reviews : MMBR · 2001
    Review
  18. Calreticulin Is a receptor for nuclear export.The Journal of cell biology · 2001
    Article
  19. Article
  20. 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 1 institution in 1 country.

S M SteggerdaCenter for Cell Signaling, Department of Biochemistry and Molecular Genetics, and Cell and Molecular Biology Program, University of Virginia Health Sciences Center, Charlottesville, Virginia, 22908, USA.
B E Black
B M Paschal
University of Virginia · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Nuclear transport factor 2 (NTF2) is a soluble transport protein originally identified by its ability to stimulate nuclear localization signal (NLS)-dependent protein import in digitonin-permeabilized cells. NTF2 has been shown to bind nuclear pore complex proteins and the GDP form of Ran in vitro. Recently, it has been reported that NTF2 can stimulate the accumulation of Ran in digitonin-permeabilized cells. Evidence that NTF2 directly mediates Ran import or that NTF2 is required to maintain the nuclear concentration of Ran in living cells has not been obtained. Here we show that cytoplasmic injection of anti-NTF2 mAbs resulted in a dramatic relocalization of Ran to the cytoplasm. This provides the first evidence that NTF2 regulates the distribution of Ran in vivo. Moreover, anti-NTF2 mAbs inhibited nuclear import of both Ran and NLS-containing protein in vitro, suggesting that NTF2 stimulates NLS-dependent protein import by driving the nuclear accumulation of Ran. We also show that biotinylated NTF2-streptavidin microinjected into the cytoplasm accumulated at the nuclear envelope, indicating that NTF2 can target a binding partner to the nuclear pore complex. Taken together, our data show that NTF2 is an essential regulator of the Ran distribution in living cells and that NTF2-mediated Ran nuclear import is required for NLS-dependent protein import.

Indexed as

Cell Cycle ProteinsGuanine Nucleotide Exchange FactorsNucleocytoplasmic Transport ProteinsAnimalsAntibodies, MonoclonalBiological TransportBiotinylationCarrier ProteinsCell LineCell NucleusCricetinaeCytosolDNA-Binding ProteinsHumansLigandsMicroscopy, FluorescenceAntibodies, MonoclonalCarrier ProteinsCell Cycle ProteinsDNA-Binding ProteinsGuanine Nucleotide Exchange FactorsLigandsNuclear Localization SignalsNuclear ProteinsNucleocytoplasmic Transport Proteinsran GTP-Binding ProteinRCC1 protein, humanRecombinant Fusion ProteinsStreptavidin

Identifiers

PMID10679025
PMCPMC14804
OpenAlexW2109971553

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.