Description
Cayman’s MPO Peroxidation Fluorometric Assay provides a convenient fluorescence-based method for detecting MPO peroxidase activity in both crude cell lysates and purified enzyme preparations. The assay utilizes the peroxidase component of MPO, where a single two-electron oxidation of native enzyme (MPO) to compound I (MPO-I) is followed by two successive one-electron reductions back to native enzyme by compound II (MPO-II).{12432} The reaction between hydrogen peroxide and ADHP (10-acetyl-3,7-dihydroxyphenoxazine) produces the highly fluorescent compound resorufin. Resorufin fluorescence can be easily analyzed with an excitation wavelength of 530 nm and emission wavelength of 590 nm. The kit includes an MPO-specific inhibitor for distinguishing MPO activity from MPO-independent fluorescence