Nitrotyrosine is a post-translational modification that is formed by the nitration of tyrosine. Under conditions of oxidative stress, tyrosine is oxidized by reactive oxygen species (ROS) or, in the presence of hydrogen peroxide and nitrite, by myeloperoxidase (MPO) to yield a tyrosine radical that reacts with...

Phytoenoic and phytodienoic acids are cyclopentenone oxylipins biosynthesized in plants from linoleic acid (Cay-90150). Cyclopentenones are converted to cyclopentanones by reductases, as occurs in the jasmonic acid pathway. CAY10696 is a 12-carbon cyclopentanone that is structurally related to a variety of plant...

dinor-12-oxo Phytodienoic acid-d5 (dinor-OPDA-d5) contains five deuterium atoms at the 4, 4', 5, 5, and 5 positions. It is intended for use as an internal standard for the quantification of dinor-OPDA by GC- or LC-mass spectrometry (MS). In plants, certain unsaturated fatty acids are oxygenated and then further...