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Biological Activity for Helianorphin-19
Helianorphin-19 is a high affinity, potent and selective κ-opioid receptor (KOR) agonist (Ki = 25 nM; EC50 = 45 nM). Helianorphin-19 exhibits approximately 200-fold selectivity for KOR over μ and δ-opioid receptors. In vivo Helianorphin-19 shows potent peripheral analgesic efficacy in a mouse model of visceral pain without affecting motor coordination/sedation.
Technical Data for Helianorphin-19
(Modifications: Cyclic peptide, Disulfide bridge: 1-9]
|Storage||Store at -20°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for Helianorphin-19
|Solubility||Soluble to 2 mg/ml in water|
References for Helianorphin-19
References are publications that support the biological activity of the product.
Muratspahić et al (2021) Design of a stable cyclic peptide analgesic derived from sunflower seeds that targets the κ-opioid receptor for the treatment of chronic abdominal pain. J.Med.Chem. 64 9042 PMID: 34162205
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Keywords: Helianorphin-19, Helianorphin-19 supplier, activates, opioid, kappa-opioid, agonists, agonism, KOP, Receptors, KOR, potent, selective, Kappa, Opioid, 7541, Tocris Bioscience
Citations for Helianorphin-19
Citations are publications that use Tocris products.
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Reviews for Helianorphin-19
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Literature in this Area
Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!
*Please note that Tocris will only send literature to established scientific business / institute addresses.
Peptides Involved in Appetite Modulation Scientific Review
Written by Sonia Tucci, Lynsay Kobelis and Tim Kirkham, this review provides a synopsis of the increasing number of peptides that have been implicated in appetite regulation and energy homeostasis; putative roles of the major peptides are outlined and compounds available from Tocris are listed.
The key feature of drug addiction is the inability to stop using a drug despite clear evidence of harm. This poster describes the brain circuits associated with addiction, and provides an overview of the main classes of addictive drugs and the neurotransmitter systems that they target.
Peripheral sensitization is the reduction in the threshold of excitability of sensory neurons that results in an augmented response to a given external stimulus. This poster outlines the excitatory and inhibitory signaling pathways involved in modulation of peripheral sensitization. The role of ion channels, GPCRs, neurotrophins, and cytokines in sensory neurons are also described.