The determination of enzyme activity and substrate concentration is enabled by the choice offered by three measurement methods along with the optional analysis utilizing standard or blank.

Enzymes like PRC1 turn on or turn off the activity of genes in a cell by manipulating individual chromosome units called nucleosomes.

General protocols are described to measure the antioxidant enzyme activity of superoxide dismutase (SOD), catalase and glutathione peroxidase.

Rhamnogalacturonan α-L-Rhamnopyranohydrolase: A Novel Enzyme Specific for the Terminal Nonreducing Rhamnosyl Unit in Rhamnogalacturonan Regions of Pectin ...