These HPC-1 ELISA kits are immunodetection tools for measuring the levels of HPC-1 in biological samples. HPC-1 is an alias of the human STX1A gene, which encodes the protein, syntaxin 1A. Notably, HPC-1 is known to play a role in exocytosis and intracellular protein transport, among other functions. The STX1A protein is 288 amino acid residues in length and 33 kilodaltons in mass. However, as many as 3 protein isoforms have been identified. It is localized to the cytoplasmic vesicles and cell membrane of the cell. This protein is known to be sumoylated and phosphorylated. Other names for this target antigen include P35-1. Click on the following ELISA kits for more detailed information, including target reactivity and assay sensitivity.