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Carotenoid cleavage enzymes evolved convergently to generate the visual chromophore

Journal Article · · Nature Chemical Biology
 [1];  [2];  [1];  [1];  [2]
  1. University of California, Irvine, CA (United States)
  2. University of California, Irvine, CA (United States); VA Long Beach Healthcare System, Long Beach, CA (United States)
The retinal light response in animals originates from the photoisomerization of an opsin-coupled 11-cis-retinaldehyde chromophore. This visual chromophore is enzymatically produced through the action of carotenoid cleavage dioxygenases. Vertebrates require two carotenoid cleavage dioxygenases, β-carotene oxygenase 1 and retinal pigment epithelium 65 (RPE65), to form 11-cis-retinaldehyde from carotenoid substrates, whereas invertebrates such as insects use a single enzyme known as Neither Inactivation Nor Afterpotential B (NinaB). RPE65 and NinaB couple trans–cis isomerization with hydrolysis and oxygenation, respectively, but the mechanistic relationship of their isomerase activities remains unknown. Here we report the structure of NinaB, revealing details of its active site architecture and mode of membrane binding. Structure-guided mutagenesis studies identify a residue cluster deep within the NinaB substrate-binding cleft that controls its isomerization activity. Our data demonstrate that isomerization activity is mediated by distinct active site regions in NinaB and RPE65—an evolutionary convergence that deepens our understanding of visual system diversity.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
Department of Veterans Affairs; National Institutes of Health (NIH); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-06CH11357; AC02-76SF00515
OSTI ID:
2469552
Journal Information:
Nature Chemical Biology, Journal Name: Nature Chemical Biology Journal Issue: 6 Vol. 20; ISSN 1552-4450
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

References (74)

AutoDock Vina: Improving the speed and accuracy of docking with a new scoring function, efficient optimization, and multithreading journal January 2009
MolProbity: More and better reference data for improved all-atom structure validation: PROTEIN SCIENCE.ORG journal November 2017
Spatial arrangement of proteins in planar and curved membranes by PPM 3.0 journal November 2021
A portfolio of plasmids for identification and analysis of carotenoid pathway enzymes: Adonis aestivalis as a case study journal May 2007
Convergent evolution: the need to be explicit journal January 1994
Molecular cloning and expression of RPE65, a novel retinal pigment epithelium-specific microsomal protein that is post-transcriptionally regulated in vitro journal July 1993
Evolutionary Aspects of the Diversity of Visual Pigment Chromophores in the Class Insecta journal January 1998
Preparation of carotenoid cleavage dioxygenases for X-ray crystallography book January 2022
Structural and mechanistic aspects of carotenoid cleavage dioxygenases (CCDs) journal November 2020
Evolutionary aspects and enzymology of metazoan carotenoid cleavage oxygenases journal November 2020
Evolutionary convergence journal October 2006
The Phylogeny and Evolutionary History of Arthropods journal June 2019
How Well is Enzyme Function Conserved as a Function of Pairwise Sequence Identity? journal October 2003
Evolution of phototransduction, vertebrate photoreceptors and retina journal September 2013
Molecular components affecting ocular carotenoid and retinoid homeostasis journal January 2021
Retinal pigment epithelium 65 kDa protein (RPE65): An update journal May 2022
A New Generation of Crystallographic Validation Tools for the Protein Data Bank journal October 2011
The biochemical and structural basis for trans-to-cis isomerization of retinoids in the chemistry of vision journal July 2010
Structure and Spectroscopy of Alkene-Cleaving Dioxygenases Containing an Atypically Coordinated Non-Heme Iron Center journal May 2017
The Biochemical Basis of Vitamin A 3 Production in Arthropod Vision journal February 2016
Identification of the Key Residues Determining the Product Specificity of Isomerohydrolase journal May 2012
Chemistry of the Retinoid (Visual) Cycle journal July 2013
Microbial and Animal Rhodopsins: Structures, Functions, and Molecular Mechanisms journal September 2013
Studies on the catalyzed interconversions of vitamin A derivatives journal May 1983
The Role of Tryptophan in π Interactions in Proteins: An Experimental Approach journal July 2022
The Molecular Basis of Visual Excitation journal August 1968
Convergent evolution of similar function in two structurally divergent enzymes journal July 1991
Quantitative exploration of the catalytic landscape separating divergent plant sesquiterpene synthases journal September 2008
Catalytic mechanism of a retinoid isomerase essential for vertebrate vision journal April 2015
Automated macromolecular model building for X-ray crystallography using ARP/wARP version 7 journal June 2008
Computational protein–ligand docking and virtual drug screening with the AutoDock suite journal April 2016
Phylogenetic analysis of the metazoan carotenoid oxygenase superfamily: a new ancestral gene assemblage of BCO-like (BCOL) proteins journal October 2017
The dual roles of RPE65 S-palmitoylation in membrane association and visual cycle function journal March 2019
Not an exception to the rule: the functional significance of intrinsically disordered protein regions in enzymes journal January 2017
Convergent evolution of animal and microbial rhodopsins journal January 2023
Radical cation (C˙+–π) and radical anion (A˙−–π) interactions with aromatic rings: energetic, orbitalic and spin density considerations journal January 2011
Mutation of key residues of RPE65 abolishes its enzymatic role as isomerohydrolase in the visual cycle journal September 2005
Identifying and manipulating structural determinates linking catalytic specificities in terpene synthases journal June 2006
NinaB combines carotenoid oxygenase and retinoid isomerase activity in a single polypeptide journal December 2008
Crystal structure of native RPE65, the retinoid isomerase of the visual cycle journal October 2009
Structure of RPE65 isomerase in a lipidic matrix reveals roles for phospholipids and iron in catalysis journal September 2012
Convergent evolution of tertiary structure in rhodopsin visual proteins from vertebrates and box jellyfish journal May 2018
Structural basis for carotenoid cleavage by an archaeal carotenoid dioxygenase journal August 2020
Chromophore hydrolysis and release from photoactivated rhodopsin in native membranes journal November 2022
Filling the Gap in Vitamin A Research: MOLECULAR IDENTIFICATION OF AN ENZYME CLEAVING β-CAROTENE TO RETINAL journal April 2000
RPE65, Visual Cycle Retinol Isomerase, Is Not Inherently 11- cis -specific : SUPPORT FOR A CARBOCATION MECHANISM OF RETINOL ISOMERIZATION journal November 2009
Two Carotenoid Oxygenases Contribute to Mammalian Provitamin A Metabolism journal November 2013
RPE65 Is an Iron(II)-dependent Isomerohydrolase in the Retinoid Visual Cycle journal November 2005
Identification of a Novel Palmitylation Site Essential for Membrane Association and Isomerohydrolase Activity of RPE65 journal December 2008
The human mitochondrial enzyme BCO2 exhibits catalytic activity toward carotenoids and apocarotenoids journal November 2020
Evolution of the Genetic Machinery of the Visual Cycle: A Novelty of the Vertebrate Eye? journal December 2011
Sequence logos: a new way to display consensus sequences journal January 1990
MUSCLE: multiple sequence alignment with high accuracy and high throughput journal March 2004
PHYML Online--a web server for fast maximum likelihood-based phylogenetic inference journal July 2005
WebLogo: A Sequence Logo Generator journal May 2004
Phaser crystallographic software journal July 2007
MrBUMP : an automated pipeline for molecular replacement journal December 2007
Surprises and pitfalls arising from (pseudo)symmetry journal December 2007
XDS journal January 2010
Features and development of Coot journal March 2010
REFMAC 5 for the refinement of macromolecular crystal structures journal March 2011
Comparative morphology of the tapetum lucidum (among selected species) journal January 2004
The Structure of a Retinal-Forming Carotenoid Oxygenase journal April 2005
Cation-pi Interactions in Chemistry and Biology: A New View of Benzene, Phe, Tyr, and Trp journal January 1996
Structure and Function of a Squalene Cyclase journal September 1997
Predictable convergence in hemoglobin function has unpredictable molecular underpinnings journal October 2016
Elucidation of the Erwinia uredovora carotenoid biosynthetic pathway by functional analysis of gene products expressed in Escherichia coli. journal January 1990
How Complexity Originates: The Evolution of Animal Eyes journal December 2015
G Protein–Coupled Receptor Rhodopsin journal June 2006
An inducible amphipathic α-helix mediates subcellular targeting and membrane binding of RPE65 journal October 2022
PDA (Prolonged Depolarizing Afterpotential)–Defective Mutants: The Story ofnina'sandina's—pintaandsanta maria, Too journal January 2012
Structural and Functional Analysis of Nonheme Iron Enzymes BCMO-1 and BCMO-2 from Caenorhabditis elegans journal February 2022
Retina, Retinol, Retinal and the Natural History of Vitamin A as a Light Sensor journal December 2012
A Cambrian origin for vertebrate rods journal June 2015

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