Cited by 268Retinal Development and DisordersNuclear Receptors and SignalingRetinoids in leukemia and cellular processes

Photoreceptor-specific nuclear receptor NR2E3 functions as a transcriptional activator in rod photoreceptors

Cheng, H.·2004·Human Molecular Genetics

Abstract

NR2E3, a photoreceptor-specific orphan nuclear receptor, is believed to play a pivotal role in the differentiation of photoreceptors. Mutations in the human NR2E3 gene and its mouse ortholog are associated with enhanced S-cones and retinal degeneration. In order to gain insights into the NR2E3 function, we performed temporal and spatial expression analysis, yeast two-hybrid screening, promoter activity assays and co-immunoprecipitation studies. The Nr2e3 expression was localized preferentially to the rod, and not to the cone, photoreceptor nuclei in rodent retina. The yeast two-hybrid screening of a retinal cDNA library, using NR2E3 as the bait, identified another orphan nuclear receptor NR1D1 (Rev-erbalpha). The interaction of NR2E3 with NR1D1 was confirmed by glutathione S-transferase pulldown and co-immunoprecipitation experiments. In transient transfection studies using HEK 293 cells, both NR2E3 and NR1D1 activated the promoters of rod phototransduction genes synergistically with neural retina leucine zipper (NRL) and cone-rod homeobox (CRX). All four proteins, NR2E3, NR1D1, NRL and CRX, could be co-immunoprecipitated from the bovine retinal nuclear extract, suggesting their existence in a multi-protein transcriptional regulatory complex in vivo. Our results demonstrate that NR2E3 is involved in regulating the expression of rod photoreceptor-specific genes and support its proposed role in transcriptional regulatory network(s) during rod differentiation.

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Crossref · 10.1093/hmg/ddh173

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  • Nr2e3 is part of the cellular and nuclear receptor family for steroid hormones and is involved in cone cell proliferation, maintenance of photoreceptor topography and intercellular interactions, and expression of rod photoreceptor cell-specific genes.

    “Nr2e3 is part of the cellular and nuclear receptor family for steroid hormones and is involved in cone cell proliferation, maintenance of photoreceptor topography and intercellular interactions, and expression of rod photoreceptor cell-specific genes”

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Authors
Cheng, H.
Affiliations
University of Michigan (US)
Corresponding author
Cheng, H.
Venue
Human Molecular Genetics
Published
2004-08-01
Volume
13
Issue
15
Pages
1563-1575
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2136899592
Cited by
268
References
61
Citations by year
2026: 9 · 2025: 14 · 2024: 17 · 2023: 16 · 2022: 14 · 2021: 10 · 2020: 13 · 2019: 6 · 2018: 8 · 2017: 11 · 2016: 11 · 2015: 7 · 2014: 15 · 2013: 9 · 2012: 14
FWCI
5.22
Type
journal article
Language
en
Open access
closed
Locations
  • Human Molecular Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • National Institutes of Health (5r24ey014803-05)
  • National Eye Institute (EY11115, EY 07003, R01EY011115, EY014803)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nuclear Receptors and Signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinoids in leukemia and cellular processes
Keywords
NR2E3, orphan nuclear receptor, rod photoreceptors, transcriptional activation, NR1D1, photoreceptor differentiation, NRL, CRX, phototransduction genes, transcriptional regulatory complexes, retinal degeneration, S-cones
MeSH terms
Animals, DNA-Binding Proteins, Eye Proteins, Glutathione Transferase, Humans, Precipitin Tests, Promoter Regions, Genetic, Rhodopsin, Transcription Factors, Transcription, Genetic, Transducin, Trans-Activators, Retinal Rod Photoreceptor Cells, Receptors, Cytoplasmic and Nuclear, Homeodomain Proteins, Two-Hybrid System Techniques, Heterotrimeric GTP-Binding Proteins, GTP-Binding Protein alpha Subunits, Basic-Leucine Zipper Transcription Factors, Mice, Nuclear Receptor Subfamily 1, Group D, Member 1, Orphan Nuclear Receptors

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