Evidence map›Paper›PMID 25894083›Full record

ArticleNature chemical biology2015

Catalytic mechanism of a retinoid isomerase essential for vertebrate vision.

Philip D Kiser, Jianye Zhang, Mohsen Badiee, Qingjiang Li, Wuxian Shi, Xuewu Sui, Marcin Golczak, Gregory P Tochtrop, Krzysztof Palczewski

Open access · greenAbstract read
In one paragraph

Article in Nature chemical biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

61 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Light-Activated RPE65 Inhibitors Enable On-Demand Visual Cycle Control.Journal of the American Chemical Society · 2026
    Article
  3. Article
  4. Mechanism of Lutein tobioRxiv : the preprint server for biology · 2025
    Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Advances and therapeutic opportunities in visual cycle modulation.Progress in retinal and eye research · 2025
    Review
  10. Vitamin A supply in the eye and establishment of the visual cycle.Current topics in developmental biology · 2025
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Predicting potentially pathogenic effects ofJournal of enzyme inhibition and medicinal chemistry · 2022
    Article
  18. Acyl-CoA:wax alcohol acyltransferase 2 modulates the cone visual cycle in mouse retina.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  19. Retinal pigment epithelium 65 kDa protein (RPE65): An update.Progress in retinal and eye research · 2022
    Review
  20. Article

1 more citing papers are in PubMed but not listed here.

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

9 authors at 2 institutions in 1 country.

Philip D KiserDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Jianye ZhangDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Mohsen BadieeDepartment of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
Qingjiang LiDepartment of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
Wuxian Shi1] National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York, USA. [2] Case Center for Synchrotron Biosciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA..
Xuewu SuiDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Marcin GolczakDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Gregory P TochtropDepartment of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
Krzysztof PalczewskiDepartment of Pharmacology, Cleveland Center for Membrane and Structural Biology, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA.
Case Western Reserve University · USBrookhaven National Laboratory · US

Funding

X-RAY STRUCTURE OF RIFM PROTEIN FROM THE BIOSYNTHESIS PATHWAY OF THE ANSAMYCIN AP41RR012408 · NCRR · BROOKHAVEN SCIENCE ASSOC-BROOKHAVEN LAB · PI ORVILLE, ALLEN M · 1998 to 2011
$32.2M
TISSUE CULTURE AND HYBRIDOMA MODULEP30EY011373 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI Irina A Pikuleva · 1997 to 2026
$17.7M
STRUCTURAL STUDIES OF ARRESTINSR01EY009339 · NEI · UNIVERSITY OF WASHINGTON · PI KISER, PHILIP DAVID, PALCZEWSKI, KRZYSZTOF · 1992 to 2025
$16.0M
Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Pharmacological Treatment of Retinal DiseasesR24EY021126 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI PALCZEWSKI, KRZYSZTOF · 2010 to 2014
$12.8M
Case Center for Synchrotron BiosciencesP30EB009998 · NIBIB · CASE WESTERN RESERVE UNIVERSITY · PI CHANCE, MARK R · 2009 to 2018
$8.4M
Macromolecular Crystallography at the National Synchrotron Light SourceP41GM103473 · NIGMS · BROOKHAVEN SCIENCE ASSOC-BROOKHAVEN LAB · PI SWEET, ROBERT M · 2012 to 2013
$4.9M
Regulation of vitamin A metabolism in the eyeR01EY023948 · NEI · CASE WESTERN RESERVE UNIVERSITY · PI GOLCZAK, MARCIN BERNARD · 2014 to 2023
$3.8M
Triterpenoid Modulators of Inflammatory Driven CarcinogenesisR01CA157735 · NCI · CASE WESTERN RESERVE UNIVERSITY · PI TOCHTROP, GREGORY P · 2011 to 2015
$1.5M
BLRD VA IK2 BX002683NCI NIH HHS CA157735NCI NIH HHS R01 CA157735NCRR NIH HHS P41 RR012408NCRR NIH HHS P41RR012408NEI NIH HHS EY009339NEI NIH HHS EY021126NEI NIH HHS EY023948NEI NIH HHS P30 EY011373NEI NIH HHS R01 EY009339NEI NIH HHS R01 EY023948NEI NIH HHS R24 EY021126NIBIB NIH HHS P30 EB009998NIBIB NIH HHS P30-EB-09998NIGMS NIH HHS P41 GM103403NIGMS NIH HHS P41 GM103473NIGMS NIH HHS P41GM103473
6 · The paper itself

Abstract

Visual function in vertebrates is dependent on the membrane-bound retinoid isomerase RPE65, an essential component of the retinoid cycle pathway that regenerates 11-cis-retinal for rod and cone opsins. The mechanism by which RPE65 catalyzes stereoselective retinoid isomerization has remained elusive because of uncertainty about how retinoids bind to its active site. Here we present crystal structures of RPE65 in complex with retinoid-mimetic compounds, one of which is in clinical trials for the treatment of age-related macular degeneration. The structures reveal the active site retinoid-binding cavity located near the membrane-interacting surface of the enzyme as well as an Fe-bound palmitate ligand positioned in an adjacent pocket. With the geometry of the RPE65-substrate complex clarified, we delineate a mechanism of catalysis that reconciles the extensive biochemical and structural research on this enzyme. These data provide molecular foundations for understanding a key process in vision and pharmacological inhibition of RPE65 with small molecules.

Indexed as

AnimalsBinding SitesBiocatalysiscis-trans-IsomerasesCrystallography, X-RayDiterpenesLigandsLightMice, Inbred C57BLMolecular Docking SimulationMolecular StructurePalmitatesPhenyl EthersPropanolaminesProtein BindingProtein Conformationcis-trans-IsomerasesDiterpenesemixustatLigandsPalmitatesPhenyl EthersPropanolaminesRetinoid IsomerohydrolaseRetinoidsretinylamine

Identifiers

PMID25894083
PMCPMC4433804
OpenAlexW1978111536

What OpenQuestion holds

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Registered trials

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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.