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Superoxide Dismutases and Superoxide Reductases
Superoxide, O2•–, is formed in all living organisms that come in contact with air, and, depending upon its biological context, it may act as a signaling agent, a toxic species, or a harmlessExpand
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Ni(II) and Co(II) sensing by Escherichia coli RcnR.
Escherichia coli RcnR and Mycobacterium tuberculosis CsoR are the founding members of a recently identified, large family of bacterial metal-responsive DNA-binding proteins. RcnR controls theExpand
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Biochemical characterization of purified OmcS, a c-type cytochrome required for insoluble Fe(III) reduction in Geobacter sulfurreducens.
Previous studies with Geobacter sulfurreducens have demonstrated that OmcS, an abundant c-type cytochrome that is only loosely bound to the outer surface, plays an important role in electron transferExpand
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Isolation, characterization and gene sequence analysis of a membrane-associated 89 kDa Fe(III) reducing cytochrome c from Geobacter sulfurreducens.
Geobacter sulfurreducens is capable of anaerobic respiration with Fe(III) as a terminal electron acceptor via a membrane-bound Fe(III) reductase activity associated with a large molecular massExpand
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Nonredox nickel enzymes.
ion as well as other steps contributed to the mechanism Figure 11. Sequence alignments of selected class I and class II glyoxalase I enzymes created using Clustal W2. Amino acids are colored byExpand
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Molecular cloning and characterization of the insecticidal crystal protein gene of Bacillus thuringiensis var. tenebrionis.
The insecticidal crystal protein gene of the coleopteran-toxic Bacillus thuringiensis var. tenebrionis has been isolated, and the nucleotide sequence has been determined. A total DNA library fromExpand
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Nickel-specific response in the transcriptional regulator, Escherichia coli NikR.
Studies of the transcriptional repression of the Ni-specific permease encoded by the Pnik operon by Escherichia coli NikR using a LacZ reporter assay establish that the NikR response is specific toExpand
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A new structural paradigm in copper resistance in Streptococcus pneumoniae
Copper resistance has emerged as an important virulence determinant of microbial pathogens. In Streptococcus pneumoniae, copper resistance is mediated by the copper-responsive repressor CopY, CupA,Expand
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Crystallographic and X-ray absorption spectroscopic characterization of Helicobacter pylori UreE bound to Ni²⁺ and Zn²⁺ reveals a role for the disordered C-terminal arm in metal trafficking.
The survival and growth of the pathogen Helicobacter pylori in the gastric acidic environment is ensured by the activity of urease, an enzyme containing two essential Ni²⁺ ions in the active site.Expand
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