A new peptide from Jatropha curcas seeds: Unusual sequence and insights into its synthetic analogue that enhances proteolytic activity of papain

- A new peptide (1341 g/mol) from Jatropha curcas seeds was isolated.
- It is inserted in a putative conserved domain of late-embryogenesis proteins.
- The circular but not the linear peptide increased the proteolytic activity of papain.