AMIGO1 (adhesion molecule with Ig like domain 1) is a neuronal adhesion protein that serves multiple functions in neural development and synaptic regulation. AMIGO1 acts as an auxiliary subunit of voltage-gated potassium channels, specifically assembling with Kv2.1 and Kv2.2 channels at presynaptic terminals in human neurons 1. The protein undergoes post-translational modifications including phosphorylation and N-linked glycosylation and localizes prominently at cell bodies, dendritic branches, and presynaptic compartments 1. Beyond its role in potassium channel regulation, AMIGO1 exhibits broader physiological functions. In vascular biology, AMIGO1 promotes endothelial cell adhesion and reduces inflammatory cytokine production (IL-6, IL-1β, TNF-α) by interacting with transforming growth factor beta receptor II (TGFRII) and activating the TGFβ/Smad signaling pathway, contributing to atherosclerotic plaque stability 2. Genetic variants affecting AMIGO1 expression have been associated with cognitive function, chr1 regulation, and metabolic traits 345. Additionally, reduced AMIGO1 expression has been observed in gastric cancer tissues, suggesting potential tumor suppressor functions 6. The gene also shows altered expression patterns in Alzheimer's disease brain tissue 7.