Evidence map›Paper›PMID 21650174›Full record

ArticleACS chemical biology2011

H-bond network around retinal regulates the evolution of ultraviolet and violet vision.

Ahmet Altun, Keiji Morokuma, Shozo Yokoyama

Abstract read
In one paragraph

Article in ACS chemical biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 28% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Vitamin ADevelopmental biology · 2021
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  3. Adaptive Landscapes in the Age of Synthetic Biology.Molecular biology and evolution · 2019
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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

3 authors at 2 institutions in 3 countries.

Ahmet AltunCherry L. Emerson Center for Scientific Computation and Department of Chemistry, Emory University, Atlanta, Georgia 30322, United States.
Keiji Morokuma
Shozo Yokoyama
Emory 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 EY016400
6 · The paper itself

Abstract

Ancestors of vertebrates used ultraviolet vision. Some descendants preserved ultraviolet vision, whereas some others replaced it with violet vision, and then, some of avian lineages reinvented ultraviolet vision. Ultraviolet (absorption at ∼360 nm) and violet (410-440 nm) sensitivities of visual pigments are known to be affected by around 20 amino acid substitutions. The present quantum mechanical/molecular mechanical calculations show that these substitutions modify a H-bond network formed by two waters and sites 86, 90, 113, 114, 118, and 295, which determines the protonation state of Schiff base linked 11-cis-retinal. A pigment is ultraviolet-sensitive when it is more stable with an unprotonated retinal (SBR) form than with its protonated analogue (PSBR) and is violet-sensitive when the PSBR form is more stable. These results establish for the first time the chemical basis of ultraviolet and violet vision in vertebrates.

Indexed as

Evolution, MolecularAnimalsHumansHydrogen BondingModels, MolecularMutagenesis, Site-DirectedProtonsRetinaRetinaldehydeSchiff BasesUltraviolet RaysVision, OcularProtonsRetinaldehydeSchiff Bases

Identifiers

PMID21650174
PMCPMC3158842
OpenAlexW2090092094

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.