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Chemical compound From Wikipedia, the free encyclopedia
Kyotorphin (L-tyrosyl-L-arginine) is a neuroactive dipeptide which plays a role in pain regulation in the brain. It was first isolated from bovine brain, by Japanese scientists in 1979.[1] Kyotorphin was named for the site of its discovery, Kyoto, Japan and because of its morphine- (or endorphin-) like analgesic activity. Kyotorphin has an analgesic effect, but it does not interact with the opioid receptors. Instead, it acts by releasing met-enkephalin and stabilizing it from degradation. It may also possess properties of neuromediator/neuromodulator. It has been shown that kyotorphin is present in the human cerebrospinal fluid and that its concentration is lower in patients with persistent pain.[2]
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IUPAC name
(2S)-2-[[(2S)-2-Amino-3-(4-hydroxyphenyl)propanoyl]amino]-5- (diaminomethylideneamino)pentanoic acid | |
Other names
Kiotorphin L-Tyrosyl-L-arginine | |
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Properties | |
C15H23N5O4 | |
Molar mass | 337.380 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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