Syntaxin is membrane integrated Q-SNARE protein participating in exocytosis. Syntaxin is composed of an N-terminal regulatory domain (Habc), a SNARE domain (known as H3), and a single C-terminal transmembrane domain. The SNARE (H3) domain binds to both synaptobrevin and SNAP-25 forming the core SNARE complex. Recombinant syntaxin 1A protein (1-226aa) contains N-terminal domain(Habc) and t-SNARE domain (H3 domain) and this protein was overexpressed in E. coli and purified by using the conventional column chromatography techniques. Alternative Names: STX1 protein, HPC 1 protein, Syntaxin A-1 protein, Syntaxin 1A protein, Neuron-specific protein HPC-1 protein, Syntaxin A-1, Syntaxin-1A protein, Neuron specific protein HPC1 protein, Syntaxin 1A brain., Syntaxin 1A, STX1A protein, Syntaxin A 1 protein, Syntaxin A 1, STX1 protein