Most cytochrome P450 (P450 or CYP)-catalyzed reactions are adequately described by classical Michaelis-Menten kinetic parameters (e.g., Km and Vmax), which are usually determined by a saturation profile of velocity of product formation versus substrate concentration. In turn, these parameters may be used to predict pharmacokinetics. However, some P450 enzymes exhibit atypical or non-Michaelis-M...

The goal of this study was to provide a reasonable assessment of how probe substrate selection may impact the results of in vitro aldehyde oxidase (AO) inhibition experiments. Here, we used a previously studied set of seven known AO inhibitors to probe the inhibition profile of a pharmacologically relevant substrate N-[(2dimethylamino)ethyl]acridine-4-carboxamide (DACA). DACA oxidation in human...

The goal of this study was to provide a reasonable assessment of how probe substrate selection may impact the results of in vitro aldehyde oxidase (AO) inhibition experiments. Here, we used a previously studied set of seven known AO inhibitors to probe the inhibition profile of a pharmacologically relevant substrate N-[(2dimethylamino)ethyl]acridine-4-carboxamide (DACA). DACA oxidation in human...

Substrate inhibition was observed with the heterodimeric (p66/p51) and the homodimeric (p66/p66, p51/p51) forms of human immunodeficiency virus type 1 reverse transcriptase (RNA-dependent DNA polymerase, EC 2.7.7.49). An apparent Ki value of 195 +/- 37 microM was determined for dTTP using the bacterial cloned and expressed heterodimer. Similar values were obtained with the homodimeric and the v...

The goal of this study was to provide a reasonable assessment of how probe substrate selection may impact the results of in vitro aldehyde oxidase (AO) inhibition experiments. Here, we used a previously studied set of seven known AO inhibitors to probe the inhibition profile of a pharmacologically relevant substrate N-[(2dimethylamino)ethyl]acridine-4-carboxamide (DACA). DACA oxidation in human...

The goal of this study was to provide a reasonable assessment of how probe substrate selection may impact the results of in vitro aldehyde oxidase (AO) inhibition experiments. Here, we used a previously studied set of seven known AO inhibitors to probe the inhibition profile of a pharmacologically relevant substrate N-[(2dimethylamino)ethyl]acridine-4-carboxamide (DACA). DACA oxidation in human...

The goal of this study was to provide a reasonable assessment of how probe substrate selection may impact the results of in vitro aldehyde oxidase (AO) inhibition experiments. Here, we used a previously studied set of seven known AO inhibitors to probe the inhibition profile of a pharmacologically relevant substrate N-[(2dimethylamino)ethyl]acridine-4-carboxamide (DACA). DACA oxidation in human...

Background: The purpose of this study was to evaluate α-amylase inhibitory effects hydroethanolic extracts bark from Daniella oliveri, Sclerocarya birrea, Maranthes polyandra, and Pteleopsis suberosa fight type-II diabetes. Methods: Compound extractions were performed by hydroethanol maceration followed liquid-liquid fractionation with solvents. TLC profiling carried out different fractions. pl...