Evidence map›Paper›PMID 21690087›Full record

ArticleThe Journal of biological chemistry2011

A minimal nuclear localization signal (NLS) in human phospholipid scramblase 4 that binds only the minor NLS-binding site of importin alpha1.

Kaylen Lott, Anshul Bhardwaj, Peter J Sims, Gino Cingolani

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

36 citing papers in PubMed, 60 citations in OpenAlex.

  1. Article
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  7. Karyopherin-mediated nucleocytoplasmic transport.Nature reviews. Molecular cell biology · 2022
    Review
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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

4 authors at 3 institutions in 1 country.

Kaylen LottDepartment of Biochemistry and Molecular Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.
Anshul Bhardwaj
Peter J Sims
Gino Cingolani
Thomas Jefferson University · USSUNY Upstate Medical University · USUniversity of Rochester Medical Center · US

Funding

PLASMA MEMBRANE PHOSPHOLIPID SCRAMBLASE IN APOPTOSISR01HL063819 · NHLBI · UNIVERSITY OF ROCHESTER · PI SIMS, PETER J · 1999 to 2009
$4.0M
Molecular Basis for Recognition and Nuclear Import of Non-classical NLS CargosR01GM074846 · NIGMS · UPSTATE MEDICAL UNIVERSITY · PI CINGOLANI, GINO · 2006 to 2010
$1.3M
NHLBI NIH HHS 5R01HL063819NHLBI NIH HHS R01 HL063819NIGMS NIH HHS 5R01GM074846NIGMS NIH HHS R01 GM074846
6 · The paper itself

Abstract

Importin α1 can bind classical nuclear localization signals (NLSs) in two NLS-binding sites, known as "major" and "minor." The major site is located between ARM repeats 2-4, whereas the minor site spans ARM 7-8. In this study, we have characterized the cellular localization of human phospholipid scramblase 4 (hPLSCR4), a member of the phospholipid scramblase protein family. We identified a minimal NLS in hPLSCR4 ((273)GSIIRKWN(280)) that contains only two basic amino acids. This NLS is both necessary for nuclear localization of hPLSCR4 in transfected HeLa cells and sufficient for nuclear import of a non-diffusible cargo in permeabilized cells. Mutation of only one of the two basic residues, Arg(277), correlates with loss of nuclear localization, suggesting this amino acid plays a key role in nuclear transport. Crystallographic analysis of mammalian importin α1 in complex with the hPLSCR4-NLS reveals this minimal NLS binds specifically and exclusively to the minor binding site of importin α. These data provide the first structural and functional evidence of a novel NLS-binding mode in importin α1 that uses only the minor groove as the exclusive site for nuclear import of nonclassical cargos.

Indexed as

alpha KaryopherinsBinding SitesCrystallography, X-RayHeLa CellsHumansMutationNuclear Localization SignalsPhospholipid Transfer ProteinsProtein Bindingalpha Karyopherinskaryopherin alpha 2Nuclear Localization SignalsPhospholipid Transfer ProteinsPLSCR4 protein, human

Identifiers

PMID21690087
PMCPMC3151061
OpenAlexW2057309715

What OpenQuestion holds

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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.