The Front Cover shows that a medium-chain alcohol dehydrogenase modified in the loop is efficiently catalyzing N-Boc-3-pyrrolidone to produce (S)-N-Boc-3-pyrrolidinol. In their Research Article, H. Wang and co-workers proposed loop-loop interaction region acts like “bridges” between loops could be used adjust conformational dynamics of enzyme, thus modifying its catalytic efficiency. Combined w...

mucopolysaccharidoses are a group of rare mostly autosomal recessive metabolic and genetic disorders. because of the high rate of consanguinity, they are not uncommon in our population. clinical diagnosis is not difficult for experienced physicians, but it is not enough for treatment and prevention measures in the future pregnancies. so, it is necessary to detect the type of mps by measurement ...

Phosphatidate (PA) phosphatase, the enzyme that catalyzes the penultimate step in triacylglycerol synthesis, is a cytosolic enzyme that must associate with the membrane where its substrate PA resides. Fluorescence spectroscopy was used to measure the interaction of yeast PAH1-encoded PA phosphatase with model liposome membranes. PA phosphatase contains five tryptophan residues and exhibited inh...

The interaction between the Streptomyces R61 penicillin-sensitive DD-peptidase and deacetyl-cephalosporin C or its lactone derivative has been studied at different pH values. The results show the importance of an enzyme group of pK g 9 which might form an ion pair with the free carboxylate of the former compound. This electrostatic interaction is shown to contribute to the formation of the firs...

Sulfhydryl reagents affected the binding properties of the translocator domain, NIII, of enzyme IImtl in two ways: (i) the affinity for mannitol was reduced, and (ii) the exchange rate of bound and free mannitol was increased. The effect on the affinity was very much reduced after solubilization of enzyme IImtl in the detergent decylPEG. The effects were caused exclusively by reaction of the su...