Results 41 to 50 of about 122,048 (323)

The PsbQ protein defines cyanobacterial Photosystem II complexes with highest activity and stability [PDF]

open access: yesProceedings of the National Academy of Sciences, 2007
Light-induced conversion of water to molecular oxygen by Photosystem II (PSII) is one of the most important enzymatic reactions in the biosphere. PSII is a multisubunit membrane protein complex with numerous associated cofactors, but it continually undergoes assembly and disassembly due to frequent light-mediated damage as a result of its ...
Johnna L, Roose   +2 more
openaire   +2 more sources

Different adaptation strategies of two citrus scion/rootstock combinations in response to drought stress [PDF]

open access: yes, 2017
Scion/rootstock interaction is important for plant development and for breeding programs. In this context, polyploid rootstocks presented several advantages, mainly in relation to biotic and abiotic stresses.
Bonatto, Diego   +6 more
core   +4 more sources

Surface-Enhanced Resonance Raman Scattering Spectroscopy of Photosystem II Pigment-Protein Complexes

open access: yesThe Journal of Physical Chemistry, 1994
Three different photosystem II (PSII) pigment-protein complexes (D1-D2-Cyt b559-CP47, D1-D2-Cyt b559, and CP47) isolated from spinach were studied by surface-enhanced resonance Raman scattering (SERRS) spectroscopy. Surface-enhanced Raman scattering (SERS) is a distance sensitive (on a 5-10-Å scale) spectroscopic tool that can be used to examine ...
Picorel Castaño, Rafael   +5 more
openaire   +2 more sources

Determining protein structures in cellular lamella at pseudo-atomic resolution by GisSPA

open access: yesNature Communications, 2023
Cryo-electron tomography is a major tool used to study the structure of protein complexes in situ. However, the throughput of tilt-series image data collection is still quite low.
Jing Cheng   +6 more
doaj   +1 more source

Structure of Photosystem I Supercomplex Isolated from a Chlamydomonas reinhardtii Cytochrome b6f Temperature-Sensitive Mutant

open access: yesBiomolecules, 2023
The unicellular green alga, Chlamydomonas reinhardtii, has been widely used as a model system to study photosynthesis. Its possibility to generate and analyze specific mutants has made it an excellent tool for mechanistic and biogenesis studies.
Tom Schwartz   +3 more
doaj   +1 more source

Spectrally selective fluorescence imaging of Chlorobaculum tepidum reaction centers conjugated to chelator-modified silver nanowires [PDF]

open access: yes, 2017
A polyhistidine tag (His-tag) present on Chlorobaculum tepidum reaction centers (RCs) was used to immobilize photosynthetic complexes on a silver nanowire (AgNW) modified with nickel-chelating nitrilo-triacetic acid (Ni-NTA).
Ashraf, Khuram   +7 more
core   +1 more source

Bottom‐Up Coacervate‐Based Artificial Cells: Integrating Cellular Hallmarks into Complex Life‐Like Systems

open access: yesAngewandte Chemie, EarlyView.
Current interest in artificial cell research underscores its potential to deepen our understanding of life's fundamental processes. This review highlights advances in bottom‐up coacervate‐based artificial cell engineering via combined integration of cellular hallmarks.
Arjan Hazegh Nikroo   +3 more
wiley   +2 more sources

Molecular Regulation and Evolution of Redox Homeostasis in Photosynthetic Machinery

open access: yesAntioxidants, 2022
The recent advances in plant biology have significantly improved our understanding of reactive oxygen species (ROS) as signaling molecules in the redox regulation of complex cellular processes.
Adeel Riaz   +8 more
doaj   +1 more source

Effect of crowding on the electron transfer process from plastocyanin and cytochrome c6 to photosystem I: a comparative study from cyanobacteria to green algae [PDF]

open access: yes, 2011
Plastocyanin and cytochrome c 6, the alternate donor proteins to photosystem I, can be acidic, neutral or basic; the role of electrostatics in their interaction with photosystem I vary accordingly for cyanobacteria, algae and plants.
Hervás Morón, Manuel   +1 more
core   +1 more source

Models and measurements of energy-dependent quenching. [PDF]

open access: yes, 2013
Energy-dependent quenching (qE) in photosystem II (PSII) is a pH-dependent response that enables plants to regulate light harvesting in response to rapid fluctuations in light intensity.
Amarnath, Kapil   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy