Evidence map›Paper›PMID 36250637›Full record

ArticleNucleic acids research2023

Conservation of transcriptional regulation by BRCA1 and BARD1 in Caenorhabditis elegans.

Ishor Thapa, Russell Vahrenkamp, Samuel R Witus, Caitlin Lightle, Owen Falkenberg, Marlo K Sellin Jeffries, Rachel E Klevit, Mikaela D Stewart

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.4field-weighted citation impact, top 45% 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

6 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. One of these strains is not like the others:microPublication biology · 2024
    Article
  5. Article
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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

8 authors at 2 institutions in 1 country.

Ishor ThapaDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.
Russell VahrenkampDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.
Samuel R WitusDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.
Caitlin LightleDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.
Owen FalkenbergDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.
Marlo K Sellin JeffriesDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.
Rachel E KlevitDepartment of Biochemistry, University of Washington, Seattle, WA 98195, USA.
Mikaela D StewartDepartment of Biology, Texas Christian University, Fort Worth, TX 76129, USA.ORCID 0000-0002-0809-9469
Texas Christian University · USUniversity of Washington · US

Funding

TRAINING IN MOLECULAR BIOPHYSICST32GM008268 · NIGMS · UNIVERSITY OF WASHINGTON · PI KOLLMAN, JUSTIN M, ZHENG, NING · 1988 to 2023
$8.6M
STRUCTURAL CHARACTERIZATION OF BRCA1R01CA079953 · NCI · UNIVERSITY OF WASHINGTON · PI KLEVIT, RACHEL E. · 1999 to 2007
$2.8M
Defining the role of BARD1 in nucleosomal ubiquitylationR01CA260834 · NCI · UNIVERSITY OF WASHINGTON · PI BRZOVIC, PETER S, KLEVIT, RACHEL E · 2021 to 2025
$2.7M
NCI NIH HHS R01 CA079953NCI NIH HHS R01 CA260834NIGMS NIH HHS T32 GM008268
6 · The paper itself

Abstract

The tumor-suppressor proteins BRCA1 and BARD1 function as an E3 ubiquitin ligase to facilitate transcriptional repression and DNA damage repair. This is mediated in-part through its ability to mono-ubiquitylate histone H2A in nucleosomes. Studies in Caenorhabditis elegans have been used to elucidate numerous functions of BRCA1 and BARD1; however, it has not been established that the C. elegans orthologs, BRC-1 and BRD-1, retain all the functions of their human counterparts. Here we explore the conservation of enzymatic activity toward nucleosomes which leads to repression of estrogen-metabolizing cytochrome P450 (cyp) genes in humans. Biochemical assays establish that BRC-1 and BRD-1 contribute to ubiquitylation of histone H2A in the nucleosome. Mutational analysis shows that while BRC-1 likely binds the nucleosome using a conserved interface, BRD-1 and BARD1 have evolved different modes of binding, resulting in a difference in the placement of ubiquitin on H2A. Gene expression analysis reveals that in spite of this difference, BRC-1 and BRD-1 also contribute to cyp gene repression in C. elegans. Establishing conservation of these functions in C. elegans allows for use of this powerful model organism to address remaining questions regarding regulation of gene expression by BRCA1 and BARD1.

Indexed as

Caenorhabditis elegansCaenorhabditis elegans ProteinsGene Expression RegulationTumor Suppressor ProteinsUbiquitin-Protein LigasesAnimalsBRCA1 ProteinHistonesHumansNucleosomesBARD1 protein, humanBRC-1 protein, C elegansBRCA1 Proteinbrd-1 protein, C elegansCaenorhabditis elegans ProteinsHistonesNucleosomesTumor Suppressor ProteinsUbiquitin-Protein Ligases

Identifiers

PMID36250637
PMCPMC10018340
OpenAlexW4306406842

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.