Coenzyme A disulfide (CoA disulfide) was pharmacologically studied. It has been found to normalize lipid and carbohydrate metabolism when given in a dose of 2 mg/kg, i.m., in diverse liver dysfunctions. It possesses an antihypoxic action under hemic and histotoxic hypoxia. When given in small doses (80-160 micrograms/kg, i.v.), CoA disulfide depresses the function of cellular hemostasis.
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Anaerobe
December 2022
Departamento de Microbiologia Médica, Instituto de Microbiologia Paulo de Góes, Universidade Federal Do Rio de Janeiro, Rio de Janeiro, RJ, Brazil. Electronic address:
Objectives: Bacteroides fragilis is an anaerobic bacterium that is commonly found in the human gut microbiota and an opportunistic pathogen in extra-intestinal infections. B. fragilis displays a robust response to oxidative stress which allows for survival in oxygenated tissues such as the peritoneal cavity and lead to the formation of abscesses.
View Article and Find Full Text PDFNoncoding RNA
June 2022
Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, 69120 Heidelberg, Germany.
Novel features of coenzyme A (CoA) and its precursor, 3'-dephospho-CoA (dpCoA), recently became evident. dpCoA was found to attach to 5'-ends of small ribonucleic acids (dpCoA-RNAs) in two bacterial species ( and ). Furthermore, CoA serves, in addition to its well-established coenzymatic roles, as a ubiquitous posttranslational protein modification ('CoAlation'), thought to prevent the irreversible oxidation of cysteines.
View Article and Find Full Text PDFmBio
August 2022
Department of Microbiology and Cell Science, University of Floridagrid.15276.37, Gainesville, Florida, USA.
Analysis of the genes retained in the minimized JCVI-Syn3A genome established that systems that repair or preempt metabolite damage are essential to life. Several genes known to have such functions were identified and experimentally validated, including 5-formyltetrahydrofolate cycloligase, coenzyme A (CoA) disulfide reductase, and certain hydrolases. Furthermore, we discovered that an enigmatic YqeK hydrolase domain fused to NadD has a novel proofreading function in NAD synthesis and could double as a MutT-like sanitizing enzyme for the nucleotide pool.
View Article and Find Full Text PDFArchaea
October 2021
Department of Chemistry, Pomona College, 645 N. College Ave., Claremont, CA, USA 91711.
NADH-dependent persulfide reductase (Npsr) has been proposed to facilitate dissimilatory sulfur respiration by reducing persulfide or sulfane sulfur-containing substrates to HS. The presence of this gene in the sulfate and thiosulfate-reducing DSM 4304 and other hyperthermophilic appears anomalous, as is unable to respire S and grow in the presence of elemental sulfur. To assess the role of Npsr in the sulfur metabolism of DSM 4304, the Npsr from was characterized.
View Article and Find Full Text PDFBiochim Biophys Acta Bioenerg
November 2019
Department of Biochemistry, University of Illinois, 600 S. Mathews Street, Urbana, IL 61801, USA. Electronic address:
The crystal structure of the enzyme previously characterized as a type-2 NADH:menaquinone oxidoreductase (NDH-2) from Thermus thermophilus has been solved at a resolution of 2.9 Å and revealed that this protein is, in fact, a coenzyme A-disulfide reductase (CoADR). Coenzyme A (CoASH) replaces glutathione as the major low molecular weight thiol in Thermus thermophilus and is maintained in the reduced state by this enzyme (CoADR).
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