Cyanobacterial photoprotection by the orange carotenoid protein

D Kirilovsky, CA Kerfeld - Nature plants, 2016 - nature.com
In photosynthetic organisms, the production of dangerous oxygen species is stimulated
under high irradiance. To cope with this stress, these organisms have evolved …

Changing color for photoprotection: the orange carotenoid protein

F Muzzopappa, D Kirilovsky - Trends in Plant Science, 2020 - cell.com
Under high irradiance, light becomes dangerous for photosynthetic organisms and they
must protect themselves. Cyanobacteria have developed a simple mechanism, involving a …

Structure, function and evolution of the cyanobacterial orange carotenoid protein and its homologs

CA Kerfeld, MR Melnicki, M Sutter… - New …, 2017 - Wiley Online Library
Contents Summary 937 I. Introduction 937 II. The structure of the OCP 938 III. OCP function
939 IV. Distribution of OCPs, FRP and domains in cyanobacteria 943 V. Carotenoid–protein …

Microalgal protein AstaP is a potent carotenoid solubilizer and delivery module with a broad carotenoid binding repertoire

YB Slonimskiy, NA Egorkin, T Friedrich… - The FEBS …, 2022 - Wiley Online Library
Carotenoids are lipophilic substances with many biological functions, from coloration to
photoprotection. Being potent antioxidants, carotenoids have multiple biomedical …

Single-molecule trap** and spectroscopy reveals photophysical heterogeneity of phycobilisomes quenched by Orange Carotenoid Protein

AH Squires, PD Dahlberg, H Liu… - Nature …, 2019 - nature.com
Abstract The Orange Carotenoid Protein (OCP) is a cytosolic photosensor that is responsible
for non-photochemical quenching (NPQ) of the light-harvesting process in most …

Role of hydrogen bond alternation and charge transfer states in photoactivation of the Orange Carotenoid Protein

IA Yaroshevich, EG Maksimov, NN Sluchanko… - Communications …, 2021 - nature.com
Here, we propose a possible photoactivation mechanism of a 35-kDa blue light-triggered
photoreceptor, the Orange Carotenoid Protein (OCP), suggesting that the reaction involves …

Assembly of photoactive orange carotenoid protein from its domains unravels a carotenoid shuttle mechanism

M Moldenhauer, NN Sluchanko, D Buhrke… - Photosynthesis …, 2017 - Springer
The photoswitchable orange carotenoid protein (OCP) is indispensable for cyanobacterial
photoprotection by quenching phycobilisome fluorescence upon photoconversion from the …

Photoactivation mechanism of a carotenoid-based photoreceptor

S Bandara, Z Ren, L Lu, X Zeng, H Shin… - Proceedings of the …, 2017 - pnas.org
Photoprotection is essential for efficient photosynthesis. Cyanobacteria have evolved a
unique photoprotective mechanism mediated by a water-soluble carotenoid-based …

The photocycle of orange carotenoid protein conceals distinct intermediates and asynchronous changes in the carotenoid and protein components

EG Maksimov, NN Sluchanko, YB Slonimskiy… - Scientific reports, 2017 - nature.com
Abstract The 35-kDa Orange Carotenoid Protein (OCP) is responsible for photoprotection in
cyanobacteria. It acts as a light intensity sensor and efficient quencher of phycobilisome …

Structure and functions of Orange Carotenoid Protein homologs in cyanobacteria

H Bao, MR Melnicki, CA Kerfeld - Current opinion in plant biology, 2017 - Elsevier
Highlights•The photoactive OCP is essential for triggering cyanobacterial
photoprotection.•The OCP is a structurally and functionally modular protein.•Light induces …