Exact Mass: 658.2598438
Exact Mass Matches: 658.2598438
Found 1 metabolites which its exact mass value is equals to given mass value 658.2598438,
within given mass tolerance error 1.28E-8 dalton. Try search metabolite list with more accurate mass tolerance error
2.56E-9 dalton.
Gluten exorphin B5
2-({[(2S)-2-({[2-({[2-({[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]oxy}amino)acetyl]oxy}amino)acetyl]oxy}amino)-3-(1H-indol-3-yl)propanoyl]oxy}amino)-4-methylpentanoic acid
Gluten exorphin B5 is a pentapeptide with the sequence Tyr-Gly-Gly-Trp-Leu. Gluten exorphins are a group of opioid peptides which are formed during digestion of the gluten protein. It has been hypothesized that people with autism and schizophrenia have abnormal leakage from the gut of these compounds, which then pass into the brain and disrupt brain function. This is partly the basis for the gluten-free, casein-free diet. The scientific evidence for this diet and its effects is still disputed.