Results 1 to 10 of about 23,903 (149)

The protein family of pyruvate:quinone oxidoreductases: Amino acid sequence conservation and taxonomic distribution

Biochimica Et Biophysica Acta - Bioenergetics, 2023
Pyruvate:quinone oxidoreductases (PQOs) catalyse the oxidative decarboxylation of pyruvate to acetate and concomitant reduction of quinone to quinol with the release of CO2. They are thiamine pyrophosphate (TPP) and flavin-adenine dinucleotide (FAD) containing enzymes, which interact with the membrane in a monotopic way.
Sousa F M, Barbara Fernandes, Manuela M Pereira   +2 more
exaly   +3 more sources

A structure-based approach for detection of thiol oxidoreductases and their catalytic redox-active cysteine residues. [PDF]

PLoS Computational Biology, 2009
Cysteine (Cys) residues often play critical roles in proteins, for example, in the formation of structural disulfide bonds, metal binding, targeting proteins to the membranes, and various catalytic functions.
Stefano M Marino, Vadim N Gladyshev
doaj   +3 more sources

Development of oxidoreductases for amino acid quantification and mutagenesis techniques for heterologous soluble expression: screening and selection strategies

Bioscience, Biotechnology and Biochemistry, 2023
ABSTRACT The high stereo- and substrate specificities of enzymes have been utilized for microdetermination of amino acids. Here, I review the discovery of l-Arg oxidase from Pseudomonas sp. TPU 7192, l-Lys oxidase/decarboxylase from Burkholderia sp. AIU 395, and enzymes showing apparent l-His oxidase activity from Achromobacter sp.
Daisuke Matsui, Matsui Daisuke
exaly   +3 more sources

Investigating the amino acid sequences of membrane bound dihydroorotate:quinone oxidoreductases (DHOQOs): Structural and functional implications

Biochimica Et Biophysica Acta - Bioenergetics, 2021
Dihydroorotate:quinone oxidoreductases (DHOQOs) are membrane bound enzymes responsible for oxidizing dihydroorotate (DHO) to orotate with concomitant reduction of quinone to quinol. They have FMN as prosthetic group and are part of the monotopic quinone reductase superfamily.
Sousa F M, Manuela M Pereira
exaly   +3 more sources

An analysis of amino acid composition of a few oxidoreductases by different methods

Bioscience Reports, 1983
1. All methods used to analyze amino acid composition of different enzymes agree well with each other. 2. They lead to a relationship between amino acid composition and function of proteins. 3. Cytochrome oxidase is in a class by itself; copper-containing oxidases are closely related as expected.
A, Naqui, J C, Vincent
exaly   +3 more sources

FAD/NADH Dependent Oxidoreductases: From Different Amino Acid Sequences to Similar Protein Shapes for Playing an Ancient Function [PDF]

Journal of Clinical Medicine, 2019
Flavoprotein oxidoreductases are members of a large protein family of specialized dehydrogenases, which include type II NADH dehydrogenase, pyridine nucleotide-disulphide oxidoreductases, ferredoxin-NAD+ reductases, NADH oxidases, and NADH peroxidases, playing a crucial role in the metabolism of several prokaryotes and eukaryotes.
Anna De Grassi, Luna Laera, Mariateresa Volpicella   +2 more
exaly   +4 more sources

Diverging Mineral Chemistry of Iron and Nickel Throughout Earth’s Changing Redox Conditions Reveals Foundation for Their Evolution as Protein Cofactors [PDF]

Life
Iron (Fe) and nickel (Ni) were both foundational to early metabolism, yet their biological trajectories diverged as Earth’s surface redox state changed.
Benjamin I. Jelen, Yarissa Peralta, Shaunna M. Morrison, Beth Christensen, Eli K. Moore   +4 more
doaj   +2 more sources

Comparative fecal microbiome analysis of the endangered Volcano rabbit (Romerolagus diazi) reveals a microbial core in contrasting habitats of Central Mexico. [PDF]

PLoS ONE
Herbivores show a larger microbial diversity in their guts than omnivores or carnivores. Bacterial symbionts expand the host digestion capacity by fermenting cellulose and hemicellulose. Comparisons between populations in different distribution areas can
Leslie M Montes-Carreto, Hanya D Arellano-Hernández, José Antonio Guerrero, Esperanza Martinez-Romero   +3 more
doaj   +2 more sources

Studies of interaction of homo-dimeric ferredoxin-NAD(P)+ oxidoreductases of Bacillus subtilis and Rhodopseudomonas palustris, that are closely related to thioredoxin reductases in amino acid sequence, with ferredoxins and pyridine nucleotide coenzymes

Biochimica Et Biophysica Acta - Proteins and Proteomics, 2009
Ferredoxin-NADP(+) oxidoreductases (FNRs) of Bacillus subtilis (YumC) and Rhodopseudomonas palustris CGA009 (RPA3954) belong to a novel homo-dimeric type of FNR with high amino acid sequence homology to NADPH-thioredoxin reductases. These FNRs were purified from expression constructs in Escherichia coli cells, and their steady-state reactions with [2Fe-
Daisuke Seo, Takeshi Sakurai
exaly   +3 more sources

Phosphite inhibits Phytophthora cinnamomi by downregulating oxidoreductases and disrupting energy metabolism [PDF]

Frontiers in Microbiology
Phytophthora root rot caused by the hemibiotrophic oomycete, Phytophthora cinnamomi is a major biotic hindrance in meeting the ever-increasing demand for avocados.
S. Ashok Prabhu, S. Ashok Prabhu, Previn Naicker, Tuan A. Duong, Ireshyn Selvan Govender, Juanita Engelbrecht, Juanita Engelbrecht, Robert Backer, Robert Backer, Stoyan Hristov Stoychev, Noëlani van den Berg, Noëlani van den Berg   +11 more
doaj   +2 more sources