Dermorphine is a peptide which sometimes is found in human blood and urine. It is a opioid peptide which mimicks the effect of morphine. This peptide is quite difficult for the body to break down and is thought to cause or worsen mental illness.
Where dermorphine comes from is still a mystery, but it's clear that it's from a microbial source. The reason for this is that one of the amino acids in this peptide is not among the 20 encoded by DNA and cannot be produced by higher organisms. The guess is that bacteria or molds are responsible.
Stucture of dermorphine: H-Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH2
Chemical formula: C40H50N8O10
Molecular weight: 802.9 g/mol