Exact Mass: 565.2536
Exact Mass Matches: 565.2536
Found 50 metabolites which its exact mass value is equals to given mass value 565.2536
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within given mass tolerance error 0.0002 dalton. Try search metabolite list with more accurate mass tolerance error
4.0E-5 dalton.
Hemorphin-4
Hemorphin-4 is an endogenous 4-residue opioid peptide of the hemorphin family which possesses antinociceptive properties. It has the amino acid sequence Tyr-Pro-Trp-Thr. It is derived from the β-chain of hemoglobin in the bloodstream. Hemorphin-4 has affinities for the μ-, δ-, and κ-opioid receptors that are in the same range as the structurally related β-casomorphins, although affinity to the κ-opioid receptor is markedly higher in comparison. It acts as an agonist at these sites. Hemorphin-4 also has inhibitory effects on angiotensin-converting enzyme (ACE).