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Dehalobacter restrictus strain PER-K23 is an obligate organohalide respiring microorganism known to solely use tetra- or trichloroethene as electron acceptors with H2 as electron donor. The catalytic enzyme, PceA, contains a corrinoid as cofactor, a trait ...
The computational analysis of isomer- and conformer- dependent photochemistry of 1- and 2-naphthols and their microsolvated water clusters is motivated by their very different excited state reactivity. We present evidence that 1- and 2-naphthol follow dist ...
The fermentation-respiration switch (FrsA) protein in Vibrio vulnificus was recently reported to catalyze the cofactor-independent decarboxylation of pyruvate. We now report quantum mechanical/molecular mechenical calculations that examine the energetics o ...
Amer Chemical Soc2013
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The stereospecific oxidative decomposition of urate into allantoin is the core of purine catabolism in many organisms. The spontaneous decomposition of upstream intermediates and the nonenzymatic racemization of allantoin lead to an accumulation of (R)-all ...
Amer Chemical Soc2014
The current understanding of epigenetic signaling assigns a central role to post-translational modifications that occur in the histone tails. In this context, it has been proposed that methylation of K9 and phosphorylation of S10 in the tail of histone H3 ...
2012
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Viral disinfection kinetics have been studied in depth, but the molecular-level inactivation mechanisms are not understood. Consequently, it is difficult to predict the disinfection behavior of non-culturable viruses, even when related, culturable viruses ...
American Society for Microbiology2013
In this study, we present a detailed characterization of the full α/β interface in the farnesyltransferase (FTase) enzyme, an important target in drug design efforts. This characterization is presented in terms of hot spots, warm spots, and null spots and ...
2011
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Tetrachloroethene (PCE) reductive dehalogenases are the key catalysts in the respiratory chain of dehalorespiring microorganisms, where they act as the terminal electron-accepting enzymes in the process. On protein level, reductive dehalogenases have been ...
2009
(-)-Quinocarcin (I) has been synthesized in a longest linear sequence of 22 steps from 3-hydroxybenzaldehyde in 16% overall yield. The Pictet-Spengler reaction of L-tert-butyl-2-bromo-5-hydroxy phenylalanate, synthesized according to Corey-Lygo's enantiose ...
2008
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Astrocytes play an important role in nervous system homeostasis. In particular, they contribute to the regulation of local energy metabolism and to oxidative stress defence. In previous experiments, we showed that long-term treatment with interleukin 1alph ...
