Evidence map›Paper›PMID 26417093›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2015

Motifs of VDAC2 required for mitochondrial Bak import and tBid-induced apoptosis.

Shamim Naghdi, Péter Várnai, György Hajnóczky

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

54 citing papers in PubMed, 88 citations in OpenAlex.

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  7. VDAC2: an emerging pivotal and multifaceted regulator in tumor biology.Apoptosis : an international journal on programmed cell death · 2026
    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

3 authors at 2 institutions in 2 countries.

Shamim NaghdiMitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107;
Péter VárnaiDepartment of Physiology, Faculty of Medicine, Semmelweis University, Budapest 1094, Hungary.
György HajnóczkyMitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy, and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107; gyorgy.hajnoczky@jefferson.edu.
Thomas Jefferson University · USSemmelweis University · HU

Funding

MITOCHONDRIAL CALCIUM SIGNALING IN CELL DEATHR01GM059419 · NIGMS · THOMAS JEFFERSON UNIVERSITY · PI HAJNOCZKY, GYORGY · 2000 to 2016
$4.0M
NIGMS NIH HHS GM59419NIGMS NIH HHS R01 GM059419
6 · The paper itself

Abstract

Voltage-dependent anion channel (VDAC) proteins are major components of the outer mitochondrial membrane. VDAC has three isoforms with >70% sequence similarity and redundant roles in metabolite and ion transport. However, only Vdac2(-/-) (V2(-/-)) mice are embryonic lethal, indicating a unique and fundamental function of VDAC2 (V2). Recently, a specific V2 requirement was demonstrated for mitochondrial Bak import and truncated Bid (tBid)-induced apoptosis. To determine the relevant domain(s) of V2 involved, VDAC1 (V1) and V2 chimeric constructs were created and used to rescue V2(-/-) fibroblasts. Surprisingly, the commonly cited V2-specific N-terminal extension and cysteines were found to be dispensable for Bak import and high tBid sensitivity. In gain-of-function studies, V2 (123-179) was the minimal sequence sufficient to render V1 competent to support Bak insertion. Furthermore, in loss-of-function experiments, T168 and D170 were identified as critical residues. These motifs are conserved in zebrafish V2 (zfV2) that also rescued V2-deficient fibroblasts. Because high-resolution structures of zfV2 and mammalian V1 have become available, we could superimpose these structures and recognized that the critical V2-specific residues help to create a distinctive open "pocket" on the cytoplasmic surface that could facilitate Bak recruitment.

Indexed as

Amino Acid MotifsAnimalsApoptosisbcl-2 Homologous Antagonist-Killer ProteinBH3 Interacting Domain Death Agonist ProteinCells, CulturedFibroblastsHumansMiceMice, KnockoutMitochondriaProtein Structure, TertiaryProtein TransportVoltage-Dependent Anion Channel 2BAK1 protein, humanBak1 protein, mousebcl-2 Homologous Antagonist-Killer ProteinBH3 Interacting Domain Death Agonist ProteinVDAC2 protein, humanVdac2 protein, mouseVoltage-Dependent Anion Channel 2apoptosisBakmitochondriatBidVDAC2

Identifiers

PMID26417093
PMCPMC4611654
OpenAlexW2165792071

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.