Torsin family 2 member A (TOR2A)

Torsin family 2 member A (TOR2A) encodes a member of the AAA+ (ATPases Associated with diverse cellular Activities) superfamily, sharing structural features with Clp proteases and heat shock proteins[1][2][4][5]. TOR2A is predominantly localized to the endoplasmic reticulum and perinuclear space, where it likely acts as a chaperone-like ATPase, facilitating protein remodeling and intracellular transport processes[2][5]. Unique transcript variants of TOR2A generate precursor proteins yielding the bioactive peptides salusin-alpha and salusin-beta (collectively, "salusins"), which have established endocrine and paracrine effects, including potent hypotensive and mitogenic actions and roles in cardiovascular homeostasis and potentially atherosclerosis[1][4]. A pathogenic variant in TOR2A has been associated with familial blepharospasm, implicating this molecule in neuronal health and dystonia[1][4]. Although TOR2A is biologically important—regulating protein homeostasis and generating regulatory peptides—it is not classified as a direct therapeutic target and currently has no known small-molecule ligands or pharmacological modulators[1][4].

Other names

Torsin-2ATorsin-related protein 1TORP1ProsalusinSalusin-alphaSalusin-betaHEMBA1005096PSEC0218UNQ6408/PRO21181FLJ14771

Not applicable (no known direct pharmacological targeting); functional roles are primarily through protein interactions, not as a classical drug target