Sulfatases and phosphatases

Sulfatases and phosphatases are two major classes of hydrolase enzymes that catalyze the removal of sulfate and phosphate groups from various substrates [1, 2]. Phosphatases play a critical role in signal transduction by reversing the action of kinases, thereby regulating cellular processes such as growth, differentiation, and apoptosis [2, 4]. Sulfatases are essential for the degradation of complex sugars in the lysosome and the activation of steroid hormones [1, 3]. Dysregulation of these enzymes is linked to numerous pathologies, including cancer, where overactive phosphatases or sulfatases can drive tumor progression [3, 4]. Genetic deficiencies in specific sulfatases lead to severe lysosomal storage diseases, such as Metachromatic Leukodystrophy [1]. In the context of drug discovery, these enzymes are targeted to modulate metabolic pathways and signaling cascades [3, 4]. For example, steroid sulfatase inhibitors are developed for hormone-dependent breast cancer treatment [3]. Protein tyrosine phosphatase inhibitors are explored for their potential in treating type 2 diabetes and obesity [4]. Despite their therapeutic potential, achieving selectivity remains a significant challenge due to the structural similarities within these enzyme families [2, 3]. Overall, they represent a diverse group of enzymes with profound impacts on human physiology and disease management [1, 2].

Other names

EsterasesPhosphoric monoester hydrolasesSulfuric ester hydrolasesDephosphorylating enzymesDesulfating enzymes

Inhibition of the hydrolytic cleavage of sulfate or phosphate esters from substrates, thereby modulating signaling pathways or metabolic flux.