PptT-IN-2 (compound 5k) is a highly effective inhibitor of phosphopantetheinyl phosphoryl transferase (PptT), with an IC50 of 2.5 μM. PptT is an indispensable enzyme crucial for synthesizing cellular lipids and virulence factors in Mycobacterium tuberculosis. Therefore, PptT-IN-2 holds great promise for further investigations into tuberculosis research [1].
PptT-IN-3 (compound 5p) is a powerful inhibitor (IC 50 = 3.5 μM) of phosphopantetheinyl phosphoryl transferase (PptT), an indispensable enzyme involved in the synthesis of cellular lipids and virulence factors in Mycobacterium tuberculosis. This compound, PptT-IN-3, holds promise for tuberculosis research [1].
PptT-IN-1 (compound 5j) is a highly potent inhibitor (IC50: 2.8 μM) of phosphopantetheinyl phosphoryl transferase (PptT), a crucial enzyme involved in the biosynthesis of cellular lipids and virulence factors in Mycobacterium tuberculosis. This compound shows considerable potential for tuberculosis research [1].
Mu-6S-Palm-β-Glc is a fluorogenic substrate of palmitoyl-protein thioesterase (PPT, also known as CLN1), a lysosomal hydrolase that removes long-chain fatty acyl groups from modified cysteine residues in proteins. Mu-6S-Palm-β-Glc is cleaved by PPT CLN1 to release the fluorescent moiety 4-methylumbelliferyl (4-MU). 4-MU fluorescence is pH-dependent with excitation maxima of 320 and 360 nm at low (1.97-6.72) and high (7.12-10.3) pH, respectively, and an emission maximum ranging from 445 to 455 nM, increasing as pH decreases. This substrate is used in assays that measure PPT activity, which is commonly deficient in the neurodegenerative disorder known as infantile neuronal ceroid lipofuscinosis.