Enzymology of H2S Biogenesis, Decay and Signaling [PDF]
Significance: Hydrogen sulfide (H2S), produced by the desulfuration of cysteine or homocysteine, functions as a signaling molecule in an array of physiological processes including regulation of vascular tone, the cellular stress response, apoptosis, and ...
Banerjee, Ruma, Kabil, Omer
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H2S biosynthesis and catabolism: new insights from molecular studies [PDF]
Hydrogen sulfide (H2S) has profound biological effects within living organisms and is now increasingly being considered alongside other gaseous signalling molecules, such as nitric oxide (NO) and carbon monoxide (CO).
A Asimakopoulou +272 more
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Pathogenic variants in SQOR encoding sulfide:quinone oxidoreductase are a potentially treatable cause of Leigh disease [PDF]
Hydrogen sulfide, a signaling molecule formed mainly from cysteine, is catabolized by sulfide:quinone oxidoreductase (gene SQOR). Toxic hydrogen sulfide exposure inhibits complex IV.
Banerjee, Ruma +20 more
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Structural studies on enzymes involved in microbial hydrogen sulfide metabolism [PDF]
"Hydrogen sulfide (H2S) is an ancient molecule present since Earth’s primordial atmosphere. Organisms from all Domains of Life early evolved to use this molecule in their physiologic activities.
Soares Costa, Sofia
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Thiosulfate-cyanide sulfurtransferase a mitochondrial essential enzyme: from cell metabolism to the biotechnological applications [PDF]
Thiosulfate: cyanide sulfurtransferase (TST), also named rhodanese, is an enzyme widely distributed in both prokaryotes and eukaryotes, where it plays a relevant role in mitochondrial function. TST enzyme is involved in several biochemical processes such
Arciero I., Buonvino S., Melino S.
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Regulation, sensory domains and roles of two Desulfovibrio desulfuricans ATCC27774 Crp family transcription factors, HcpR1 and HcpR2, in response to nitrosative stress [PDF]
In silico analyses identified a Crp/Fnr family transcription factor (HcpR) in sulfate-reducing bacteria that controls expression of the hcp gene, which encodes the hybrid cluster protein and contributes to nitrosative stress responses.
Browning, D. +9 more
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The Role of Bacillithiol in Gram-Positive Firmicutes [PDF]
Significance: Since the discovery and structural characterization of bacillithiol (BSH), the biochemical functions of BSH-biosynthesis enzymes (BshA/B/C) and BSH-dependent detoxification enzymes (FosB, Bst, GlxA/B) have been explored in Bacillus and ...
Antelmann, Haike +3 more
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Characterization of a putative NsrR homologue in Streptomyces venezuelae reveals a new member of the Rrf2 superfamily [PDF]
Members of the Rrf2 superfamily of transcription factors are widespread in bacteria but their functions are largely unexplored. The few that have been characterized in detail sense nitric oxide (NsrR), iron limitation (RirA), cysteine availability (CymR)
AR Tesson +56 more
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Acidity and nucleophilic reactivity of glutathione persulfide [PDF]
Persulfides (RSSH/RSS2) participate in sulfur trafficking and metabolic processes, and are proposed to mediate the signaling effects of hydrogen sulfide (H2S). Despite their growing relevance, their chemical properties are poorly understood.
Alvarez, Beatriz +10 more
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Transcriptional regulation of bacterial virulence gene expression by molecular oxygen and nitric oxide [PDF]
© Jeffrey Green, Matthew D Rolfe, and Laura J Smith. Molecular oxygen (O2) and nitric oxide (NO) are diatomic gases that play major roles in infection.
Green, J., Rolfe, M.D., Smith, L.J.
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