Results 11 to 20 of about 20,984 (208)
Light and Dark Cycles Control the Structural Evolution of Photoresponsive Supramolecular Systems
Angewandte Chemie, EarlyView.Here, we report a photoswitchable synthetic peptide that, under light energy cycles, exhibits supramolecular polymorphism coupled to darkness‐driven structural self‐selection. We demonstrate that light sustains a transient assembled state in the form of helical nanoribbons, hindering the system from undergoing a transition to the disassembled state ...
Alejandro Méndez‐Ardoy +6 more
wiley +2 more sources
Biochimica et Biophysica Acta (BBA) - Bioenergetics, 2013 Cyanobacteria have multiple psbA genes encoding PsbA, the D1 reaction center protein of the Photosystem II (PSII) complex. The thermophilic cyanobacterium Thermosynechococcus elongatus has three psbA genes differently expressed depending on the environmental conditions. Among the 344 residues of PsbA, there are 21 substitutions between PsbA1 and PsbA3,
Boussac, Alain +2 more
openaire +2 more sources
A Modular PLUG‐IN Photosynthetic Chassis With Tunable Thermal Control for Mammalian Systems
Advanced Science, EarlyView.This work establishes a “plug‐in” chassis compatible with mammalian systems that synchronizes growth, production, and cell‐wall re‐configuration, providing a versatile platform for photosynthetic bioproduction and microalgal synthetic biology. ABSTRACT Microalgae are promising photosynthetic platforms for high‐value compounds, yet their industrial use ...
Qinhua Gan +13 more
wiley +1 more source
Recent Progress on Enzyme Immobilization: Materials, Strategies, and Applications
Food Bioengineering, EarlyView.Enzyme immobilization technology has undergone substantial evolution driven by advances in materials science. This review systematically examines the recent advances in enzyme immobilization since 2024, with a focused analysis of five major categories of enzyme carriers including covalent organic framework, metal‐organic frameworks, polymers, carbon ...
Shuran Wang +7 more
wiley +1 more source
Assembly of the Photosystem II Membrane-Protein Complex of Oxygenic Photosynthesis
, 2017 Photosystem II is a 700-kDa membrane-protein super-complex responsible for the light-driven splitting of water in oxygenic photosynthesis. The photosystem is comprised of two 350-kDa complexes each made of 20 different polypeptides and over 80 co-factors.
Roman SobotkaJulian J. Eaton-Rye +2 more
openaire +3 more sources
The PsbP Protein Is Required for Photosystem II Complex Assembly/Stability and Photoautotrophy in Arabidopsis thaliana [PDF]
Journal of Biological Chemistry, 2007 Interfering RNA was used to suppress the expression of the genes At1g06680 and At2g30790 in Arabidopsis thaliana, which encode the PsbP-1 and PsbP-2 proteins, respectively, of photosystem II (PS II). A phenotypic series of transgenic plants was recovered that expressed intermediate and low amounts of PsbP. Chlorophyll fluorescence induction and Q(A)(-)
Xiaoping, Yi +4 more
openaire +2 more sources
Food Safety and Health, EarlyView.Planned harvesting and processing of marine macroalgae could meet future global food needs and mitigate fuel‐originated carbon dioxide responsible for climate change. Microalgal foods are nutritious and safe. The utilization of macroalgae would avoid environmental problems arising from the release of overgrowing macroalgae caused by heatwaves, which ...
Upali Samarajeewa
wiley +1 more source
Journal of the Chinese Chemical Society, EarlyView.While X‐ray crystallography has been the primary method for determining the structures of metalloproteins, cryoEM has taken over this role, illustrated by [4Fe4S]‐cluster containing proteins deposited in the Protein Data Bank. What will be the role for X‐ray crystallography as cryoEM and machine learning methods dominate the initial structural analysis?
Douglas C. Rees
wiley +1 more source
A Novel Antenna Protein Complex in the Life Cycle of Cyanobacterial Photosystem II [PDF]
, 2019 ABSTRACT In oxygenic photosynthetic organisms, photosystem II (PSII) is a unique membrane protein complex that catalyzes light-driven oxidation of water. PSII undergoes frequent damage due to its demanding photochemistry. However, many facets of its repair and reassembly following photodamage remain unknown.
Weisz, Daniel A. +9 more
openaire +1 more source
Reversible reorganization of the chlorophyll‐protein complexes of photosystem II in cyanobacterium cells in the dark ag [PDF]
FEBS Letters, 1989 A new emission band at 673 nm was detected in the low‐temperature fluorescence spectrum of dark‐adapted cyanobacteria Gloeotrichia raciborski. The excitation spectrum of this band was close to the absorbance of the isolated reaction centre of photosystem II. The relative intensities of the bands of chlorophyll and pheophytin in this spectrum showed the
Lebedev, N.N. +2 more
openaire +1 more source