Evidence map›Paper›PMID 23599266›Full record

ArticleScience (New York, N.Y.)2013

Impaired α-TTP-PIPs interaction underlies familial vitamin E deficiency.

Nozomu Kono, Umeharu Ohto, Tatsufumi Hiramatsu, Michiko Urabe, Yasunori Uchida, Yoshinori Satow, Hiroyuki Arai

Abstract read
PubMed Publisher
In one paragraph

Article in Science (New York, N.Y.), 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
6.9field-weighted citation impact, top 2% 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

62 citing papers in PubMed, 126 citations in OpenAlex.

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 1 institution in 1 country.

Nozomu KonoGraduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan.
Umeharu Ohto
Tatsufumi Hiramatsu
Michiko Urabe
Yasunori Uchida
Yoshinori Satow
Hiroyuki Arai
The University of Tokyo · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

α-Tocopherol (vitamin E) transfer protein (α-TTP) regulates the secretion of α-tocopherol from liver cells. Missense mutations of some arginine residues at the surface of α-TTP cause severe vitamin E deficiency in humans, but the role of these residues is unclear. Here, we found that wild-type α-TTP bound phosphatidylinositol phosphates (PIPs), whereas the arginine mutants did not. In addition, PIPs in the target membrane promoted the intermembrane transfer of α-tocopherol by α-TTP. The crystal structure of the α-TTP-PIPs complex revealed that the disease-related arginine residues interacted with phosphate groups of the PIPs and that the PIPs binding caused the lid of the α-tocopherol-binding pocket to open. Thus, PIPs have a role in promoting the release of a ligand from a lipid-transfer protein.

Indexed as

alpha-TocopherolAmino Acid SubstitutionArginineCarrier ProteinsCrystallography, X-RayHumansMutationPhosphatidylinositol 4,5-DiphosphateProtein Structure, SecondaryVitamin E Deficiencyalpha-Tocopherolalpha-tocopherol transfer proteinArginineCarrier ProteinsPhosphatidylinositol 4,5-Diphosphate

Identifiers

PMID23599266
OpenAlexW2050163942

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.