Results 1 to 10 of about 8,008,108 (303)

A Protein Environment-Modulated Energy Dissipation Channel in LHCII Antenna Complex

iScience, 2020
Summary: The major light-harvesting complex of photosystem II (LHCII) is the main contributor to sunlight energy harvesting in plants. The flexible design of LHCII underlies a photoprotective mechanism whereby this complex switches to a dissipative state
Francesco Saccon, Milan Durchan, David Bína, Christopher D.P. Duffy, Alexander V. Ruban, Tomáš Polívka   +5 more
doaj   +1 more source

Phytochrome-dependent coordinate control of distinct aspects of nuclear and plastid gene expression during anterograde signalling and photomorphogenesis

Frontiers in Plant Science, 2014
Light perception by photoreceptors impacts plastid transcription, development, and differentiation. This photoreceptor-dependent activity suggests a mechanism for photoregulation of gene expression in the nucleus and plastid that serves to coordinate ...
Sookyung eOh, Beronda L Montgomery
doaj   +1 more source

A novel chloroplast super-complex consisting of the ATP synthase and photosystem I reaction center.

PLoS ONE, 2020
Several 'super-complexes' of individual hetero-oligomeric membrane protein complexes, whose function is to facilitate intra-membrane electron and proton transfer and harvesting of light energy, have been previously characterized in the mitochondrial ...
Satarupa Bhaduri, Sandeep K Singh, Whitaker Cohn, S Saif Hasan, Julian P Whitelegge, William A Cramer   +5 more
doaj   +1 more source

Differential stability of bacterial photosynthetic apparatus of Rhodobacter alkalitolerans strain JA916T under alkaline and light environment

Frontiers in Microbiology
In purple bacteria, photosynthesis is performed by densely packed pigment-protein complexes, including the light-harvesting complexes known as RC-LH1 and LH2, with carotenoids to assist in the functioning of photosynthesis.
Mohammad Yusuf Zamal, Saikiran Madireddi, Nageswara Rao Mekala, Venkata Ramana Chintalapati, Rajagopal Subramanyam   +4 more
doaj   +1 more source

Light quantity affects the regulation of cell shape in Fremyella diplosiphon

Frontiers in Microbiology, 2012
In some cyanobacteria, the color or prevalent wavelengths of ambient light can impact the protein or pigment composition of the light-harvesting complexes. In some cases, light color or quality impacts cellular morphology.
Bagmi ePattanaik, Melissa J. Whitaker, Beronda L Montgomery   +2 more
doaj   +1 more source

Proteomic Insights into Phycobilisome Degradation, A Selective and Tightly Controlled Process in The Fast-Growing Cyanobacterium Synechococcus elongatus UTEX 2973

Biomolecules, 2019
Phycobilisomes (PBSs) are large (3−5 megadalton) pigment-protein complexes in cyanobacteria that associate with thylakoid membranes and harvest light primarily for photosystem II.
Aparna Nagarajan, Mowei Zhou, Amelia Y. Nguyen, Michelle Liberton, Komal Kedia, Tujin Shi, Paul Piehowski, Anil Shukla, Thomas L. Fillmore, Carrie Nicora, Richard D. Smith, David W. Koppenaal, Jon M. Jacobs, Himadri B. Pakrasi   +13 more
doaj   +1 more source

Conformational plasticity enables functional switching in diatom light-harvesting complexes

Communications Chemistry
Biomolecules exhibit a fundamental correlation between structure and function, which can be modulated by environmental factors. Deciphering this relationship remains a central and long-standing challenge for many protein families.
Theofani-Iosifina Sousani, Boutheina Zender, Sayan Maity, Ulrich Kleinekathöfer, Vangelis Daskalakis   +4 more
doaj   +1 more source

Spectroscopy data for the time and frequency characterization of vibrational coherences in bacteriochlorophyll a

Data in Brief, 2019
Bacteriochlorophyll is the primary pigment in the light-harvesting pigment-protein complexes (PPCs) of the bacterial photosynthetic apparatus. 2D electronic spectroscopy (2DES) represents one of the most exploited and powerful techniques to characterize ...
Elena Meneghin, Danilo Pedron, Elisabetta Collini   +2 more
doaj   +1 more source

Photosynthetic efficiency in rhizophoracean mangroves with reference to compartmentalization of photosynthetic pigments

Revista de Biología Tropical, 1999
Photosynthetic pigments are localized in protein complexes of chloroplast membranes and their role in photosynthesis has long been established but their efficiency has not been measured in many species.
P. Moorthy, K. Kathiresan
doaj  

The Effective Force Constant Approach of Protein Flexibility Applied to Selected Photosynthetic Protein Complexes

Molecules
Proteins are generally characterized by three-dimensional structures that are well suited for their specific function. It is much less accepted that a particular flexibility or plasticity of a protein is essential for performing its function.
Miriam Koppel, Maria Kulikova, Arina Sljusar, Mina Hajizadeh, Maksym Golub, Jörg Pieper   +5 more
doaj   +1 more source