Widely distributed neuromodulator acting through GAL1–GAL3 receptors.
Part of the Neuropeptides & signaling cluster
Overview
Galanin is a neuropeptide (30 residues in humans) that modulates neurotransmission across many brain regions. Research explores its involvement in mood, feeding, and pain-signaling pathways.
Source & context
Biological / chemical source: Central and peripheral nervous system
Primary research or clinical context: Neuroscience research
Receptor subtypes
Galanin acts through three G-protein-coupled receptors (GAL1, GAL2, GAL3) with distinct distributions. This receptor diversity is a major reason galanin biology is studied in the context of appetite, seizure thresholds, and stress in experimental models.
Species length note
Human galanin is 30 amino acids, while many other species express a 29-residue amidated form. Such species differences are a recurring point of care when comparing published galanin studies.
FAQ about Galanin
What is Galanin?+
Galanin is a neuropeptide (30 residues in humans) that modulates neurotransmission across many brain regions. Research explores its involvement in mood, feeding, and pain-signaling pathways.
Is Galanin an approved medicine?+
Galanin is discussed here as a research / educational topic. Neuroscience research. This is not medical advice.
What is the typical length of Galanin?+
Galanin is commonly described as approximately 30 amino acids (Neuropeptide).