Results 111 to 120 of about 4,338 (207)

Three Pseudomonas putida FNR Family Proteins with Different Sensitivities to O-2 [PDF]

open access: yes, 2015
The Escherichia coli fumarate-nitrate reduction regulator (FNR) protein is the paradigm for bacterial O2-sensing transcription factors. However, unlike E.
Andrew J. Thomson   +51 more
core   +1 more source

The Role of Persulfide Metabolism During Arabidopsis Seed Development Under Light and Dark Conditions

open access: yesFrontiers in Plant Science, 2018
The sulfur dioxygenase ETHE1 oxidizes persulfides in the mitochondrial matrix and is involved in the degradation of L-cysteine and hydrogen sulfide. ETHE1 has an essential but as yet undefined function in early embryo development of Arabidopsis thaliana.
Christin Lorenz   +8 more
doaj   +1 more source

NsrR from Streptomyces coelicolor is a nitric oxide-sensing [4Fe-4S] cluster protein with a specialized regulatory function [PDF]

open access: yes, 2015
The Rrf2 family transcription factor NsrR controls expression of genes in a wide range of bacteria in response to nitric oxide (NO). The precise form of the NO-sensing module of NsrR is the subject of controversy because NsrR proteins containing either ...
Al-Bassam, Mahmoud   +12 more
core   +1 more source

Persulfide Dioxygenase From Acidithiobacillus caldus: Variable Roles of Cysteine Residues and Hydrogen Bond Networks of the Active Site

open access: yesFrontiers in Microbiology, 2018
Persulfide dioxygenases (PDOs) are abundant in Bacteria and also crucial for H2S detoxification in mitochondria. One of the two pdo-genes of the acidophilic bacterium Acidithiobacillus caldus was expressed in Escherichia coli.
Patrick Rühl   +4 more
doaj   +1 more source

Nitrosopersulfide (SSNO(-)) targets the Keap-1/Nrf2 redox system.

open access: yes
Nitric oxide (NO), hydrogen sulfide and polysulfides have been proposed to contribute to redox signaling by activating the Keap-1/Nrf2 stress response system. Nitrosopersulfide (SSNO(-)) recently emerged as a bioactive product of the chemical interaction
Cortese-Krott, Miriam M.   +2 more
core   +1 more source

Bis(aryl) Tetrasulfides as Cathode Materials for Rechargeable Lithium Batteries [PDF]

open access: yes, 2017
An organotetrasulfide consists of a linear chain of four sulfur atoms that could accept up to 6 e− in reduction reactions, thus providing a promising high-capacity electrode material. Herein, we study three bis(aryl) tetrasulfides as cathode materials in
Bhargav, Amruth   +6 more
core   +1 more source

Influence of association state and DNA binding on the O2-reactivity of [4Fe-4S] fumarate and nitrate reduction (FNR) regulator [PDF]

open access: yes, 2014
The fumarate and nitrate reduction (FNR) regulator is the master switch for the transition between anaerobic and aerobic respiration in Escherichia coli.
Andrew J. Thomson   +41 more
core   +1 more source

A role for nickel-iron cofactors in biological carbon monoxide and carbon dioxide utilization [PDF]

open access: yes, 2010
Ni–Fe containing enzymes are involved in the biological utilization of carbon monoxide, carbon dioxide, and hydrogen. Interest in these enzymes has increased in recent years due to hydrogen fuel initiatives and concerns over development of new methods ...
Anderson   +42 more
core   +1 more source

Differential Diel Translation of Transcripts With Roles in the Transfer and Utilization of Iron-Sulfur Clusters in Arabidopsis

open access: yesFrontiers in Plant Science, 2018
Iron-sulfur (Fe-S) clusters are evolutionarily ancient ubiquitous protein cofactors which have mostly catalytic functions but can also have structural roles.
Hongliang Zhang, Ute Krämer
doaj   +1 more source

X-Ray Structural Analysis and Vibrational Spectra of Sodium Cysteine-S-sulfonate, +H3NCH(COO-)CH2S2O3Na • 3/2H2O [1] [PDF]

open access: yes, 1993
The title compound crystallizes orthorhombically (space group C 2221) with a = 797.0, b = 870.3 and c = 2739.0 pm. The anions are zwitterions which are heavily involved in intra- and intermolecular NH •••O and OH•••O hydrogen bonding.
Albertsen, Angela   +3 more
core   +1 more source

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