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The evolutionary conserved family of Selenoproteins performs redox-regulatory functions in bacteria, archaea and eukaryotes. Among them, members of the SELENOPROTEIN O (SELO) subfamily are located in mammalian and yeast mitochondria, but their functions are thus far enigmatic. Screening of T-DNA
Oxidation of methionine residues during periods of oxidative stress can lead to loss of protein function. Organisms have developed defense strategies to minimize such damage. The PilB protein, which is involved in pilus formation in the pathogen Neisseria gonorrhoeae, is composed of three functional
NifS-like proteins catalyze the formation of elemental sulfur (S) and alanine from cysteine (Cys) or of elemental selenium (Se) and alanine from seleno-Cys. Cys desulfurase activity is required to produce the S of iron (Fe)-S clusters, whereas seleno-Cys lyase activity is needed for the