synaptophysin
noun
syn·ap·to·phy·sin
sə-ˈnap-tə-ˌfī-sᵊn 
: a transmembrane glycoprotein found chiefly in presynaptic vesicles of neurons and neurosecretory granules of neuroendocrine cells
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“Synaptophysin.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/synaptophysin. Accessed 4 May. 2025.
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