Immobilized enzymes: Electrokinetic effects on reaction rates in a porous mediumdoi:10.1002/bit.260241106The effect of the internal diffusion and electrical surface charge on the overall rate of a reaction catalyzed by an enzyme immobilized on a porous medium are examined. Effectiveness factors have ...
Changes in the hydrodynamic volume are promoted by modulation of chemical equilibria that would alter the relative abundance of enzymes that exist in different conformations, shifting the equilibrium between these conformations4, 39. In the presence of crowding agents, there appears to be positive ...
reaction is reversible by removing the chemical, which results in the inhibition but not the death of the microorganisms. One antibiotic,rifampin, interferes withribonucleic acid(RNA) synthesis in bacteria by binding to a subunit on the bacterial enzyme responsible for duplication of RNA. Since the...
neural mechanism underlying the phenomenon in rats with constrictive ligatures placed loosely around thesciatic nerve. In 2002 Chinese-born neuroscientist Min Zhuo and colleagues reported the identification of two enzymes, adenylyl cyclase types 1 and 8, in the forebrains of mice that play an ...
Approaches for predicting the side effects of clinical drugs can be broadly divided into chemical features such as drug structures; biological features such as target proteins, transporters, and enzymes; and phenotypic features such as side effects and therapeutic indications. Previous studies have explor...
Also, fish exposed acutely to unweathered crude oil had an increased prevalence of lipid vacuole accumulation in the cardiac muscle (Hook et al., 2018) although it is not clear whether this was due to the reduced activity of enzymes involved in fatty acid metabolism or an increase in ...
It has been known for many years that rates of oxygen isotope exchange between water and both aqueous and solid phosphate are negligible at low (surface) temperatures in the absence of appropriate enzymes Tudge 1960, Boyer 1978, Blake et al 1997. Rates of exchange increase rapidly with ...
Lipid metabolism is intricately linked to the onset and progression of ferroptosis. Polyunsaturated fatty acids (PUFAs) possess bis-allylic hydrogen atoms that are readily abstracted, rendering them susceptible to lipid peroxidation. Key enzymes involved in lipid metabolism, such as arachidonic acid lipox...
Effect of arsenic and FIS on biochemical parameters The role of As and FIS on the activities of antioxidative enzymes and oxidative stress markers is shown in Table 2. Arsenic treatment significantly (p < 0.05) lessened the activity of enzymes, namely CAT, SOD, GPx, GSR, and GSH level...
The acyl-CoA-dependent TAG biosynthesis is catalyzed by diacylglycerol: acyl-CoA acyltransferase (DGAT) enzymes using acyl-CoA as an acyl donor and DAG as an acyl acceptor to form TAG. At least three types of DGAT enzymes have been identified in plant species: DGAT1 and DGAT2, which are ...