Peptide structure
http://www.neurozym.com/en/default.asp?gruppe=305 "Casein peptides
The casomorphines are formed by digestion of the casein protein. The most striking feature in these peptides is the abundance of proline. Casomorphines are known to cause addiction in severe cases of protein intolerance. The length of casomorphins are quite variable.
â-Casomorphin 1-3*
â-Casomorphin 1-4, amid*
â-Casomorphin 5*
â-Casomorphin 7*
â-Casomorphin 8*
Gluten peptides
Gluten exorphins are formed in the enzymatic digestion of the gluten protein. Gliadorphin is similarly formed from the gliadin component of gluten.
Gluten exorphin A5*
Gluten exorphin B5*
Gluten exorphin C*
Gliadorphin*
Spinach peptides
Rubiscolins are a newly discovered group of opioid peptides. They are formed during digestion of the ribulose bisphosphate carboxylase/oxygenase (Rubisco) protein from spinach leaves. The effects of these peptides on mental health remains unknown.
Rubiscolin-5
Rubiscolin-6
Other opioid peptides
Opioid peptides may come from other sources than casein, gluten and spinach. Recent research has reveiled opioid peptides also in eggs, oats and rice. We don't have structures for these peptides yet.
In addition, there is a peptide which is called dermorphin. Dermorphin is from a microbial source, but the organism(s) responsible remains elusive. It has a D-Alanin residue, which is not known in higher organisms. The guess is that dermorphin is produced by bacteria or molds. Deltorphin I and II are quite similar in structure and are from fungal sources.
Dermorphin*
Deltorphin I
Deltorphin II
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