Function of PsbO, the Photosystem II Manganese-Stabilizing Protein: Probing the Role of Aspartic Acid 157

Biochemistry ◽  
2010 ◽  
Vol 49 (29) ◽  
pp. 6042-6051 ◽  
Author(s):  
Johnna L. Roose ◽  
Charles F. Yocum ◽  
Hana Popelkova
Keyword(s):  
Photosystem Ii ◽  
Aspartic Acid ◽  
Manganese Stabilizing Protein

scholarly journals Structure and Activity of the Photosystem II Manganese-Stabilizing Protein: Role of the Conserved Disulfide Bond

2005 ◽  
Vol 85 (3) ◽  
pp. 359-372 ◽  
Author(s):  
Aaron J. Wyman ◽  
Charles F. Yocum
Keyword(s):  
Photosystem Ii ◽  
Disulfide Bond ◽  
Manganese Stabilizing Protein ◽  
Structure And Activity

Role of Disulfide Linkage and Putative Intermolecular Binding Residues in the Stability and Binding of the Extrinsic Manganese-Stabilizing Protein to the Photosystem II Reaction Center

Biochemistry ◽  
1994 ◽  
Vol 33 (46) ◽  
pp. 13712-13718 ◽  
Author(s):  
Robert L. Burnap ◽  
Ming Qian ◽  
J.-R. Shen ◽  
Yorinao Inoue ◽  
Louis A. Sherman
Keyword(s):  
Photosystem Ii ◽  
Reaction Center ◽  
Disulfide Linkage ◽  
Manganese Stabilizing Protein ◽  
Binding Residues ◽  
The Stability

scholarly journals The Role of Selected Wavelengths of Light in the Activity of Photosystem II in Gloeobacter violaceus

2021 ◽  
Vol 22 (8) ◽  
pp. 4021
Author(s):  
Monika Kula-Maximenko ◽  
Kamil Jan Zieliński ◽  
Ireneusz Ślesak
Keyword(s):  
Photosystem Ii ◽  
Spectral Composition ◽  
Photosynthetic Electron Transport ◽  
Metabolic Energy ◽  
Light Conditions ◽  
Gloeobacter Violaceus ◽  
Transport Chain ◽  
Cyanobacterial Culture ◽  
Photosynthetic Antennas

Gloeobacter violaceus is a cyanobacteria species with a lack of thylakoids, while photosynthetic antennas, i.e., phycobilisomes (PBSs), photosystem II (PSII), and I (PSI), are located in the cytoplasmic membrane. We verified the hypothesis that blue–red (BR) light supplemented with a far-red (FR), ultraviolet A (UVA), and green (G) light can affect the photosynthetic electron transport chain in PSII and explain the differences in the growth of the G. violaceus culture. The cyanobacteria were cultured under different light conditions. The largest increase in G. violaceus biomass was observed only under BR + FR and BR + G light. Moreover, the shape of the G. violaceus cells was modified by the spectrum with the addition of G light. Furthermore, it was found that both the spectral composition of light and age of the cyanobacterial culture affect the different content of phycobiliproteins in the photosynthetic antennas (PBS). Most likely, in cells grown under light conditions with the addition of FR and G light, the average antenna size increased due to the inactivation of some reaction centers in PSII. Moreover, the role of PSI and gloeorhodopsin as supplementary sources of metabolic energy in the G. violaceus growth is discussed.

scholarly journals Studies on the role of actin's aspartic acid 3 and aspartic acid 11 using oligodeoxynucleotide-directed site-specific mutagenesis.

1988 ◽  
Vol 263 (36) ◽  
pp. 19662-19669
Author(s):  
T L Solomon ◽  
L R Solomon ◽  
L S Gay ◽  
P A Rubenstein
Keyword(s):  
Aspartic Acid ◽  
Site Specific

scholarly journals Role of redox-inactive metals in controlling the redox potential of heterometallic manganese–oxido clusters

2021 ◽  
Author(s):  
Keisuke Saito ◽  
Minesato Nakagawa ◽  
Manoj Mandal ◽  
Hiroshi Ishikita
Keyword(s):  
Photosystem Ii ◽  
Redox Potential ◽  
Quantum Chemical Calculations ◽  
Catalytic Reaction ◽  
Quantum Chemical ◽  
Ionic Radius ◽  
Redox Potentials ◽  
Oxygen Evolving ◽  
Highest Occupied Molecular Orbitals

AbstractPhotosystem II (PSII) contains Ca2+, which is essential to the oxygen-evolving activity of the catalytic Mn4CaO5 complex. Replacement of Ca2+ with other redox-inactive metals results in a loss/decrease of oxygen-evolving activity. To investigate the role of Ca2+ in this catalytic reaction, we investigate artificial Mn3[M]O2 clusters redox-inactive metals  [M] ([M]  = Mg2+, Ca2+, Zn2+, Sr2+, and Y3+), which were synthesized by Tsui et al. (Nat Chem 5:293, 2013). The experimentally measured redox potentials (Em) of these clusters are best described by the energy of their highest occupied molecular orbitals. Quantum chemical calculations showed that the valence of metals predominantly affects Em(MnIII/IV), whereas the ionic radius of metals affects Em(MnIII/IV) only slightly.

Role of the conserved histidine and aspartic acid residues in activity and stabilization of human gelatinase B: An example of matrix metalloproteinases

1995 ◽  
Vol 14 (7) ◽  
pp. 527-535 ◽  
Author(s):  
Tayebeh Pourmotabbed ◽  
Jacob A. Aelion ◽  
David Tyrrell ◽  
Karen A. Hasty ◽  
Chun Hui Bu ◽  
...  
Keyword(s):  
Matrix Metalloproteinases ◽  
Aspartic Acid ◽  
Gelatinase B

scholarly journals The Role of Metals in Production and Scavenging of Reactive Oxygen Species in Photosystem II

2014 ◽  
Vol 55 (7) ◽  
pp. 1224-1232 ◽  
Author(s):  
Pavel Pospíšil
Keyword(s):  
Reactive Oxygen Species ◽  
Photosystem Ii ◽  
Reactive Oxygen ◽  
Oxygen Species

scholarly journals On the role of exchangeable hydrogen bonds for the kinetics of P680+. QA−. formation and P680+. Pheo−. recombination in photosystem II

1996 ◽  
Vol 1276 (1) ◽  
pp. 35-44 ◽  
Author(s):  
S. Vasil'ev ◽  
A. Bergmann ◽  
H. Redlin ◽  
H.-J. Eichler ◽  
G. Renger
Keyword(s):  
Photosystem Ii ◽  
Hydrogen Bonds ◽  
Exchangeable Hydrogen ◽  
Kinetics Of
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