Evidence map›Paper›PMID 22663599›Full record

ArticleJournal of the American Chemical Society2012

Color vision: "OH-site" rule for seeing red and green.

Sivakumar Sekharan, Kota Katayama, Hideki Kandori, Keiji Morokuma

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

20 citing papers in PubMed, 59 citations in OpenAlex.

  1. Article
  2. Spectral Tuning in Mammalian Melanopsins.Molecular biology and evolution · 2025
    Article
  3. Article
  4. Article
  5. Glu102Biochemistry · 2024
    Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Vitamin ADevelopmental biology · 2021
    Review
  11. Article
  12. Article
  13. Convergent spectral shifts to blue-green vision in mammals extends the known sensitivity of vertebrate M/LWS pigments.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Adaptive Landscapes in the Age of Synthetic Biology.Molecular biology and evolution · 2019
    Review
  16. Article
  17. Article
  18. Review
  19. Unusual kinetics of thermal decay of dim-light photoreceptors in vertebrate vision.Proceedings of the National Academy of Sciences of the United States of America · 2014
    Article
  20. 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 3 institutions in 2 countries.

Sivakumar SekharanCherry L. Emerson Center for Scientific Computation, Department of Chemistry, Emory University, Atlanta Georgia 30322, USA. ssekhar@emory.edu
Kota Katayama
Hideki Kandori
Keiji Morokuma
Nagoya Institute of Technology · JPEmory University · USKyoto University · JP

Funding

Adaptive Evolution of Color VisionR01EY016400 · NEI · EMORY UNIVERSITY · PI YOKOYAMA, SHOZO · 2006 to 2015
$3.8M
NEI NIH HHS R01 EY016400NEI NIH HHS R01EY016400
6 · The paper itself

Abstract

Eyes gather information, and color forms an extremely important component of the information, more so in the case of animals to forage and navigate within their immediate environment. By using the ONIOM (QM/MM) (ONIOM = our own N-layer integrated molecular orbital plus molecular mechanics) method, we report a comprehensive theoretical analysis of the structure and molecular mechanism of spectral tuning of monkey red- and green-sensitive visual pigments. We show that interaction of retinal with three hydroxyl-bearing amino acids near the β-ionone ring part of the retinal in opsin, A164S, F261Y, and A269T, increases the electron delocalization, decreases the bond length alternation, and leads to variation in the wavelength of maximal absorbance of the retinal in the red- and green-sensitive visual pigments. On the basis of the analysis, we propose the "OH-site" rule for seeing red and green. This rule is also shown to account for the spectral shifts obtained from hydroxyl-bearing amino acids near the Schiff base in different visual pigments: at site 292 (A292S, A292Y, and A292T) in bovine and at site 111 (Y111) in squid opsins. Therefore, the OH-site rule is shown to be site-specific and not pigment-specific and thus can be used for tracking spectral shifts in any visual pigment.

Indexed as

Color VisionAnimalsBinding SitesComputer SimulationCrystallography, X-RayHumansHydroxidesModels, BiologicalRetinal PigmentsSensory Rhodopsinshydroxide ionHydroxidesRetinal PigmentsSensory Rhodopsins

Identifiers

PMID22663599
PMCPMC3777617
OpenAlexW2049666649

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.