Evidence map›Paper›PMID 25691659›Full record

ArticleMolecular and cellular biology2015

Characterization of BRD4 during mammalian postmeiotic sperm development.

Jessica M Bryant, Greg Donahue, Xiaoshi Wang, Mirella Meyer-Ficca, Lacey J Luense, Angela H Weller, Marisa S Bartolomei, Gerd A Blobel, Ralph G Meyer, Benjamin A Garcia and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular and cellular biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

23 citing papers in PubMed, 44 citations in OpenAlex.

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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

11 authors at 2 institutions in 1 country.

Jessica M BryantPenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA Biomedical Graduate Studies, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Greg DonahuePenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Xiaoshi WangPenn Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Mirella Meyer-FiccaDepartment of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Lacey J LuensePenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Angela H WellerPenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Marisa S BartolomeiPenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Gerd A BlobelDivision of Hematology, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Ralph G MeyerDepartment of Animal Biology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Benjamin A GarciaPenn Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Shelley L BergerPenn Epigenetics Program, Department of Cell and Developmental Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA bergers@mail.med.upenn.edu.
University of Pennsylvania · USChildren's Hospital of Philadelphia · US

Funding

VANADIUM INTERACTION STUDIES IN RELATION TO THE INHIBITION OF NA+-K+-ATPASES06GM008216 · NIGMS · UNIVERSITY OF PUERTO RICO AT HUMACAO · PI ALEGRIA, ANTONIO E · 1989 to 2010
$8.0M
Chromatin regulatory mechanisms in eukaryotic gametogenesisR01GM055360 · NIGMS · WISTAR INSTITUTE · PI BERGER, SHELLEY L · 1998 to 2015
$5.1M
PROJECT 4: TARGETING ADP-RIBOSE POLYMER DEPENDENT EPIGENETIC EVENTS IN MALE LINEU54HD068157 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI BARTOLOMEI, MARISA S. · 2011 to 2013
$4.8M
Novel Methodology for Quantitative High-throughput Cancer EpigeneticsDP2OD007447 · OD · UNIVERSITY OF PENNSYLVANIA · PI GARCIA, BENJAMIN A · 2010 to 2010
$2.4M
ADP-Ribose Polymer Metabolism in SpermatogenesisR01HD048837 · NICHD · UNIVERSITY OF PENNSYLVANIA · PI MEYER, RALPH G · 2005 to 2009
$1.4M
Understanding the Role of Combinatorial Histone PTM PatternsR01GM110174 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI GARCIA, BENJAMIN A · 2014 to 2017
$1.3M
NICHD NIH HHS R01 HD048837NICHD NIH HHS R01HD048837NICHD NIH HHS U54 HD068157NICHD NIH HHS U54-HD068157NICHD NIH HHS U54HD068157NIGMS NIH HHS GM008216NIGMS NIH HHS GM055360NIGMS NIH HHS GM110174NIGMS NIH HHS R01 GM055360NIGMS NIH HHS R01 GM110174NIGMS NIH HHS S06 GM008216NIH HHS DP2 OD007447
6 · The paper itself

Abstract

During spermiogenesis, the postmeiotic phase of mammalian spermatogenesis, transcription is progressively repressed as nuclei of haploid spermatids are compacted through a dramatic chromatin reorganization involving hyperacetylation and replacement of most histones with protamines. Although BRDT functions in transcription and histone removal in spermatids, it is unknown whether other BET family proteins play a role. Immunofluorescence of spermatogenic cells revealed BRD4 in a ring around the nuclei of spermatids containing hyperacetylated histones. The ring lies directly adjacent to the acroplaxome, the cytoskeletal base of the acrosome, previously linked to chromatin reorganization. The BRD4 ring does not form in acrosomal mutant mice. Chromatin immunoprecipitation followed by sequencing in spermatids revealed enrichment of BRD4 and acetylated histones at the promoters of active genes. BRD4 and BRDT show distinct and synergistic binding patterns, with a pronounced enrichment of BRD4 at spermatogenesis-specific genes. Direct association of BRD4 with acetylated H4 decreases in late spermatids as acetylated histones are removed from the condensing nucleus in a wave following the progressing acrosome. These data provide evidence of a prominent transcriptional role for BRD4 and suggest a possible removal mechanism for chromatin components from the genome via the progressing acrosome as transcription is repressed and chromatin is compacted during spermiogenesis.

Indexed as

SpermatogenesisAcetylationAcrosomeAmino Acid SequenceAnimalsBromodomain Containing ProteinsGene Expression Regulation, DevelopmentalHistonesMaleMeiosisMiceNuclear ProteinsPromoter Regions, GeneticSpermatidsTranscription FactorsBrd4 protein, mouseBromodomain Containing ProteinsHistonesNuclear ProteinsTranscription Factors

Identifiers

PMID25691659
PMCPMC4372693
OpenAlexW2076448975

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.