Evidence map›Paper›PMID 25219850›Full record

ArticleNature2014

Histone H2A.Z subunit exchange controls consolidation of recent and remote memory.

Iva B Zovkic, Brynna S Paulukaitis, Jeremy J Day, Deepa M Etikala, J David Sweatt

Abstract read
In one paragraph

Article in Nature, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 111 papers.

0numbers the graph read from it
0cells of the map it votes in
111citing papers in PubMed
8.7field-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

111 citing papers in PubMed, 184 citations in OpenAlex.

  1. Splice isoforms of the histone variant macroH2A1 differentially regulate hippocampal gene expression and memory formation.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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51 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Iva B ZovkicDepartment of Neurobiology and Evelyn F. McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
Brynna S PaulukaitisDepartment of Neurobiology and Evelyn F. McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
Jeremy J DayDepartment of Neurobiology and Evelyn F. McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
Deepa M EtikalaDepartment of Neurobiology and Evelyn F. McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
J David SweattDepartment of Neurobiology and Evelyn F. McKnight Brain Institute, University of Alabama at Birmingham, Birmingham, Alabama 35294, USA.
University of Alabama at Birmingham · US

Funding

Biochemical Mechanisms of Neural PlasticityR01MH057014 · NIMH · VANDERBILT UNIVERSITY · PI WINDER, DANNY G. · 1996 to 2019
$9.3M
DNA Methylation in Memory FormationR01MH091122 · NIMH · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SWEATT, JOHN DAVID · 2011 to 2015
$1.8M
NIMH NIH HHS MH091122NIMH NIH HHS MH57014NIMH NIH HHS R01 MH057014NIMH NIH HHS R01 MH091122
6 · The paper itself

Abstract

Memory formation is a multi-stage process that initially requires cellular consolidation in the hippocampus, after which memories are downloaded to the cortex for maintenance, in a process termed systems consolidation. Epigenetic mechanisms regulate both types of consolidation, but histone variant exchange, in which canonical histones are replaced with their variant counterparts, is an entire branch of epigenetics that has received limited attention in the brain and has never, to our knowledge, been studied in relation to cognitive function. Here we show that histone H2A.Z, a variant of histone H2A, is actively exchanged in response to fear conditioning in the hippocampus and the cortex, where it mediates gene expression and restrains the formation of recent and remote memory. Our data provide evidence for H2A.Z involvement in cognitive function and specifically implicate H2A.Z as a negative regulator of hippocampal consolidation and systems consolidation, probably through downstream effects on gene expression. Moreover, alterations in H2A.Z binding at later stages of systems consolidation suggest that this histone has the capacity to mediate stable molecular modifications required for memory retention. Overall, our data introduce histone variant exchange as a novel mechanism contributing to the molecular basis of cognitive function and implicate H2A.Z as a potential therapeutic target for memory disorders.

Indexed as

Epigenesis, GeneticAnimalsCognitionConditioning, PsychologicalFearGene Expression RegulationGene Knockdown TechniquesHippocampusHistonesMaleMemoryMiceMice, Inbred C57BLProtein BindingHistones

Identifiers

PMID25219850
PMCPMC4768489
OpenAlexW2072002750

What OpenQuestion holds

Textmetadata
LicenceTDM
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.