Syntaxin-19 (STX19)

Syntaxin-19 is a Qa-SNARE integral membrane protein involved in the machinery of vesicle fusion, characteristic of the syntaxin family. Syntaxins possess a conserved N-terminal Habc regulatory domain, a central SNARE domain essential for complex formation, and a C-terminal transmembrane anchor. The syntaxin protein family orchestrates the specificity and dynamics of membrane fusion involved in trafficking between cellular compartments. Syntaxin-19’s precise subcellular localization, expression pattern, and function remain poorly characterized relative to prominent syntaxin isoforms like Syntaxin-1A/1B and Syntaxin-4, but likely shares core SNARE-mediated fusion mechanisms fundamental to secretion, signaling, and organelle homeostasis. Data for Syntaxin-19 is notably sparse, and most functional, molecular, or therapeutic advances in the SNARE/syntaxin family pertain to other, better-studied isoforms. No conflicting or erroneous information about the existence of STX19 as a gene/protein is apparent, but there is a lack of characterization in both the literature and therapeutic context.

Other names

STX19MGC21382syntaxin-19

Not applicable; drugs targeting STX19 have not been described.