Application

o-Nitropiperonyl-O-tyrosine (NPY) is a photo-responsive unnatural amino acid (UAA) for spatiotemporal control of biological molecules or processes as reported by Kneuttinger et al. Irradiation with UV light decages the Tyr amino acid, freeing the residue or protein for biological activity. Tools such as NPY will find wide utility in light regulation of activity, allostery, and enzyme pathways.

Other Notes

Light Regulation of Enzyme Allostery through Photoresponsive Unnatural Amino Acids