Synaptophysin (SYP) is an integral membrane glycoprotein of 38,000 Da and it has four membrane-spanning domains. Synaptophysin is localized to neurons, neuromuscular junctions, paraganglia cells, hypophysis, pancreatic islet cells, and adrenal cells. SYP gene is mapped to human chromosome Xp11.23. Monoclonal Anti-Synaptophysin (mouse IgG1 isotype) is derived from the hybridoma produced by the fusion of mouse myeloma cells and splenocytes from an immunized mouse.
Synaptophysin (SYP) modulates neurotransmitter release and synaptic plasticity. It maintains biogenesis and recycling of synaptic vesicles. SYP functions as a marker for neuroendocrine tumors. It is used as a potent marker for neuroendocrine prostate cancer (NEPC). Mutations in this gene is associated with X-linked intellectual disability.