Evidence map›Paper›PMID 22547062›Full record

ArticleThe Journal of biological chemistry2012

Melanopsin is highly resistant to light and chemical bleaching in vivo.

Timothy J Sexton, Marcin Golczak, Krzysztof Palczewski, Russell N Van Gelder

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

32 citing papers in PubMed, 55 citations in OpenAlex.

  1. Photic memory for executive brain responses.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Trial
  2. Divergence of Melanopsin's Intrinsic Properties and Downstream Actions.bioRxiv : the preprint server for biology · 2026
    Article
  3. Review
  4. A short story on how chromophore is hydrolyzed from rhodopsin for recycling.BioEssays : news and reviews in molecular, cellular and developmental biology · 2023
    Review
  5. The Multistable Melanopsins of Mammals.Frontiers in ophthalmology · 2023
    Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Ectopic Expression of Mouse Melanopsin inThe Journal of biological chemistry · 2017
    Article
  16. Review
  17. Article
  18. Prolonged Inner Retinal Photoreception Depends on the Visual Retinoid Cycle.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2016
    Article
  19. Article
  20. Neuropsin (OPN5)-mediated photoentrainment of local circadian oscillators in mammalian retina and cornea.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
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

4 authors at 2 institutions in 1 country.

Timothy J SextonDepartment of Ophthalmology, University of Washington, Seattle, Washington 98195, USA.
Marcin Golczak
Krzysztof Palczewski
Russell N Van Gelder
Case Western Reserve University · USUniversity of Washington · US

Funding

Vision Research CoreP30EY001730 · NEI · UNIVERSITY OF WASHINGTON · PI Jay Neitz · 1985 to 2026
$23.5M
STRUCTURAL STUDIES OF ARRESTINSR01EY009339 · NEI · UNIVERSITY OF WASHINGTON · PI KISER, PHILIP DAVID, PALCZEWSKI, KRZYSZTOF · 1992 to 2025
$16.0M
VISUAL SCIENCES TRAINING PROGRAMT32EY007031 · NEI · UNIVERSITY OF WASHINGTON · PI Wyeth Daniel Bair, Anitha Pasupathy · 1985 to 2026
$6.1M
REGULATION OF THE OUTER BLOOD-RETINAL BARRIERF32EY007031 · NEI · YALE UNIVERSITY · PI WILT, STEVEN D · 1999 to 2000
$11k
NEI NIH HHS EY009339NEI NIH HHS F32 EY007031NEI NIH HHS P30 EY001730NEI NIH HHS P30EY001730NEI NIH HHS P30EY07031NEI NIH HHS R01 EY009339NEI NIH HHS T32 EY007031NEI NIH HHS T32EY007031
6 · The paper itself

Abstract

Melanopsin is the photopigment of mammalian intrinsically photosensitive retinal ganglion cells, where it contributes to light entrainment of circadian rhythms, and to the pupillary light response. Previous work has shown that the melanopsin photocycle is independent of that used by rhodopsin (Tu, D. C., Owens, L. A., Anderson, L., Golczak, M., Doyle, S. E., McCall, M., Menaker, M., Palczewski, K., and Van Gelder, R. N. (2006) Inner retinal photoreception independent of the visual retinoid cycle. Proc. Natl. Acad. Sci. U.S.A. 103, 10426-10431). Here we determined the ability of apo-melanopsin, formed by ex vivo UV light bleaching, to use selected chromophores. We found that 9-cis-retinal, but not all-trans-retinal or 9-cis-retinol, is able to restore light-dependent ipRGC activity after bleaching. Melanopsin was highly resistant to both visible-spectrum photic bleaching and chemical bleaching with hydroxylamine under conditions that fully bleach rod and cone photoreceptor cells. These results suggest that the melanopsin photocycle can function independently of both rod and cone photocycles, and that apo-melanopsin has a strong preference for binding cis-retinal to generate functional pigment. The data support a model in which retinal is continuously covalently bound to melanopsin and may function through a reversible, bistable mechanism.

Indexed as

Models, BiologicalAnimalsDiterpenesMelanopsinMiceMice, KnockoutPhotobleachingRetinal Cone Photoreceptor CellsRetinaldehydeRetinal Rod Photoreceptor CellsRod OpsinsUltraviolet Rays9-cis-retinalDiterpenesMelanopsinRetinaldehydeRod Opsins

Identifiers

PMID22547062
PMCPMC3375512
OpenAlexW2135954872

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.