Galanin (Human)

Galanin (Human) (Acetate) is a 30-amino acid neuropeptide and galanin (GAL) receptor agonist.It inhibits forskolin-induced cAMP production in HEK293E cells expressing recombinant human GAL1 receptors (EC50= 0.031 nM) and stimulates inositol phosphate accumulation in CHO cells expressing recombinant human GAL2receptors (EC50= 12.3 nM).Human galanin induces contractions in isolated rat longitudinal fundus strips with an EC50value of 13.8 nM.Intrathecal administration of human galanin (3, 10, and 30 nmol/animal) reduces paw licking and flinching in the second, but not first, phase of the formalin test in rats.

Galanin (2-11) amide is a synthetic peptide fragment of the neuropeptide galanin and an agonist of the galanin-2 (GAL2) receptor (EC50= 9.32 nM in a fluorescence imaging plate reader assay).1It selectively binds to the GAL2receptor (IC50= 1.76 nM for the rat receptor) over the GAL1receptor (IC50= 879 nM for the human receptor) but does also bind to the GAL3receptor (Ki= 271 nM for the rat receptor).1,2Intracerebroventricular administration of galanin (2-11) amide (1 nmol/animal) decreases immobility in the forced swim test in rats.3It also reduces the hind paw mechanical pain threshold and increases the hind paw cold sensitivity threshold in rats.1

Galanin-Like Peptide (human) is a neuropeptide composed of 60 amino acids, crucial for regulating feeding, body weight, and energy metabolism [1].

Galanin (1-19), human, represents the fragment encompassing amino acids 1 to 19 of the human galanin neuropeptide. Galanin (GAL) is known for its extensive distribution and multifaceted biological roles, such as regulating hormone secretion, providing antinociceptive effects, and altering feeding behavior.

Galanin (1-30), human, is a 30-amino acid neuropeptide that acts as an agonist of GalR1 and GalR2 receptors with Kis of 1 nM for both. This endogenous peptide exhibits multiple endocrine, metabolic, and behavioral effects, influencing intestinal smooth muscle, insulin and somatostatin release, and synaptic neurotransmission.

Galanin (1-30), human acetate (Galanin ) is a 30-amino acid neuropeptide. Galanin (1-30), human acetate acts as an agonist of GalR1 and GalR2 receptors, with Kis of both 1 nM.

Galanin is a neuropeptide with diverse biological activities. [1][2][3][4][5] It binds to rat galanin (GAL) receptor subtypes GAL1-3 (IC50s = 0.339, 1.35, and 3.31 nM, respectively) and human GAL1-3 (IC50s = 0.288, 1.62, and 12.3 nM, respectively). [1] Galanin binds to and inhibits contraction of guinea pig gastric smooth muscle cells induced by carbachol . [2] In vivo, Galanin (6 nmol, i.c.v.) increases feeding behavior in rats and increases latency to hindpaw withdrawal in response to heat and mechanical stimulation in a rat model of carrageenin-induced inflammation when administered at a dose of 2 nmol injected into the nucleus accumbens.[3][4] Galanin (5 μg, i.c.v.) also inhibits acetylcholine release induced by scopolamine in the ventral hippocampus of freely moving rats. [5]

Human GALP (3-32) (Galanin-like peptide (3-32)) serves as a high-affinity agonist for galanin receptors GalR1 (IC50 = 33 nM) and GalR2 (IC50 = 15 nM), as evidenced by competitive binding studies. It demonstrates significant potency in modifying the extracellular acidification rate in SH-SY5Y cells expressing GalR2 (EC50 = 360 nM) [1].

Alarin (human) is a hypothalamic neuropeptide from the galanin peptide family that comprises the signal sequence of the GALP precursor and the initial five amino acids (aa) of the mature GALP [1].