Molecular activation mechanism and structural dynamics of orange carotenoid protein

VU Chukhutsina, JJ van Thor - Physchem, 2022 - mdpi.com
Like most photosynthetic organisms, cyanobacteria are vulnerable to fluctuations in light
intensity, which can damage their photosynthetic machinery. To protect against this, they use …

Influence of structural colour on the photoprotective mechanism in the gametophyte phase of the red alga Chondrus crispus

AG Fleitas, S Sardar… - Journal of the …, 2024 - royalsocietypublishing.org
Marine life is populated by a huge diversity of organisms with an incredible range of colour.
While structural colour mechanisms and functions are usually well studied in marine animal …

The Orange Carotenoid Protein triggers cyanobacterial photoprotection by quenching bilins via a structural switch of Its carotenoid

N Liguori, IHM van Stokkum… - Journal of the …, 2024 - ACS Publications
Cyanobacteria were the first microorganisms that released oxygen into the atmosphere
billions of years ago. To do it safely under intense sunlight, they developed strategies that …

Unifying Perspective of the Ultrafast Photodynamics of Orange Carotenoid Proteins from Synechocystis: Peril of High-Power Excitation, Existence of Different S …

S Niziński, A Wilson, LM Uriarte, C Ruckebusch… - JACS Au, 2022 - ACS Publications
A substantial number of Orange Carotenoid Protein (OCP) studies have aimed to describe
the evolution of singlet excited states leading to the formation of a photoactivated form …

[HTML][HTML] The Carbonyl Group in β2 of the Carotenoid Tunes the Photocycle Kinetics in Orange Carotenoid Protein

VU Chukhutsina, CDM Hutchison… - Journal of Molecular …, 2024 - Elsevier
Adaptation to rapid environmental changes is crucial for maintaining optimal photosynthetic
efficiency and is ultimately key to the survival of all photosynthetic organisms. Like most of …

The molecular origin of the OCP-dependent non-photochemical quenching mechanism in cyanobacteria

N Liguori, I van Stokkum, F Muzzopappa, J Kennis… - 2022 - chemrxiv.org
Cyanobacteria were the first microorganisms that released oxygen into the atmosphere
billions of years ago. To do it safely under intense sunlight, they developed strategies that …

Assessment of the Role and Origin of S* in Orange Carotenoid Protein Photoconversion

JP Pidgeon, GA Sutherland, MS Proctor… - arXiv preprint arXiv …, 2024 - arxiv.org
The orange carotenoid protein (OCP) is the water-soluble mediator of non-photochemical
quenching in cyanobacteria, a crucial photoprotective mechanism in response to excess …

Spectroscopic Investigation on Orange Carotenoid Protein (OCP): From the Activation Mechanism to the Development of OCP-based Fluorescent Nanoparticles

A CALCINONI - thesis.unipd.it
Abstract Orange Carotenoid Protein (OCP) is a photoactive water-soluble protein involved in
photoprotective functions. Among different strains of cyanobacteria, OPC is responsible of …