Galanin (3-13)-Biotin


  • Description

  • Application Data


An N-terminal fragment of galanin (3-13) with C-terminal biotin; galanin is a widely distributed neuropeptide with a wide variety of roles, including energy homeostasis and mental health.

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Application Data

Catalogue number crb1000669
Molecular Weight 1372.7
Sequence (one letter code)


Sequence (three letter code)


Purity >95%
Storage -20°C

Ihnatko et al., (2017). Short N-terminal galanin fragments are occurring naturally in vivo. Neuropeptides, 63: 1.  doi: 10.1016/j.npep.2017.03.005.

Serebryakova et al., (2019). Galanin and its N-terminal fragments reduce acute myocardial infarction in rats. Peptides, 111: 127. doi: 10.1016/j.peptides.2018.05.001.

Manufactured in: United Kingdom
Data Sheet Material Safety Data Sheet (MSDS)

Galanin is a neuropeptide synthesised and released by the brainstem locus coeruleus (LC). Galanin is expressed in most LC neurons in rodents and humans. Galanin has been shown to inhibit LC activity by hyperpolarising LC neurons, suppressing their spontaneous firing rate, and enhancing α2-adrenergic receptor-mediated negative feedback. Galanin is also a potent trophic and neuroprotective factor throughout the nervous system.

Galanin is widely distributed in the central nervous, peripheral, and endocrine systems. Galanin’s overarching function is as an inhibitory, hyper-polarizing neuromodulator for classical neurotransmitters like acetylcholine and serotonin. Galanin interacts with 3 receptor subtypes, GalR1-3, which are G protein-coupled receptors inserted into the plasma membrane. GalR1 is believed to activate a Gβγ pathway to regulate MAPK activation. GalR2 can also activate the MAPK pathway, but unlike GalR1, there is detectable inositol phosphate production. GalR3 is associated with the Gαi/o pathway. Activation of the receptor leads to a cellular influx of K+. Each receptor has been associated with neurological diseases such as GalR3 and epilepsy.

N-terminal fragments are naturally occurring in vivo but their relevance is not clear. Some N-terminal fragments reduce metabolic and functional disorders in experimental heart damage. Using N-terminal fragments such as galanin (3-13) can clarify the function of full-length galanin during myocardial ischemia and reperfusion injury. This may highlight new agonists/antagonists for the galanin GalR receptors that can be putative therapeutic targets.

A C-terminal biotin tag for easy detection and purification has been added to the galanin (3-13) fragment. Cambridge Research Biochemicals is a custom peptide provider. If you desire an alternate tag, please contact us to request a custom synthesis.

Galanin (3-13)-Biotin

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