Dnp-P-Cha-Abu-Cys(Me)-HA-K(Nma)-NH2 is a fluorogenic substrate for matrix metalloproteinase-1 (MMP-1) and MMP-9. It is cleaved by MMP-1 and MMP-9 to release N-methylanthranilic acid (Nma), which is unquenched and its fluorescence can be used to quantify MMP activity.
