Afegostat tartrate is a pharmacological chaperone, which specifically and reversibly binds acid-β-glucosidase (GCase) in the endoplasmic reticulum (ER) with high affinity[1].
References
[1] Richter F, et al. A GCase chaperone improves motor function in a mouse model of synucleinopathy. Neurotherapeutics. 2014 Oct;11(4):840-56. DOI:10.1007/s13311-014-0294-x