In the course of studies on the adaptive fermentation of galaetose by yeast, the effects of a number of enzyme inhibitors on the adaptive process and the subsequent fermentation were investigated. The results of these experiments as they bear on the problem of adaptation have been discussed in a preliminary communication (1). However, one interesting point emerged in concentration curves fgr tw...

Even purified enzyme preparations are often heterogeneous. For example, preparations of aspartate aminotransferase or cytochrome oxidase can consist of several different forms of the enzyme. For this reason we consider how different the kinetics of the reactions catalysed by a mixture of forms of an enzyme must be to provide some indication of the characteristics of the species present. Based o...

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Enzymes, like all positive catalysts, dramatically increase the rate of a given reaction. Enzyme kinetics is principally concerned with the measurement and mathematical description of this reaction rate and its associated constants. For many steps in metabolism, enzyme kinetic properties have been determined, and this information has been collected and organized in publicly available online dat...

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Adenosine 5’-triphosphate (ATP) is the nearly ubiquitous “energy currency” of living organisms, and thus is a crucial participant in the majority of enzymatic reactions. The standard models in enzyme kinetics generally ignore the temporal dynamics of ATP because it is assumed to be present in large excess. However, this assumption may not hold in many situations of cellular stress where ATP con...

CRISPR-diagnostic assays have gained significant interest in the last few years. This has grown rapidly during current COVID-19 pandemic, where CRISPR-diagnostics been frontline contenders for rapid testing solutions. surge research prompts following question: what exactly are achievable limits of detection and associated assay times enabled by kinetics enzymes such as Cas12 Cas13? To explore t...