A diagram showing the structures and predicted structures of systemins and other related peptides. Information from:
C. P. Constabel et al., Prosystemin from potato, black nightshade, and bell pepper. primary structure and biological activity of predicted systemin polypeptides, Plant Molecular Biology 36 (1998), pp. 55–62C.A. Ryan and G. Pearce, Systemins: A functionally defined family of peptide signal that regulate defensive genes in Solanaceae species, Proceedings of the National Academy of Sciences of the United States of America 100 (2003), pp. 14577-14580G. Pearce et al., Isolation and characterization of hydroxyproline-rich glycopeptide signals in black nightshade leaves, Plant Physiology 150 (2009), pp. 1422-1433G. Pearce et al., Three hydroxyproline-rich glycopeptides derived from a single petunia polyprotein precursor activate defensin I, a pathogen defense response gene, The Journal of Biological Chemistry 282 (2007), pp. 17777–17784.Y.C. Chen et al., Six peptide wound signals derived from a single precursor protein in Ipomoea batatas leaves activate the expression of the defense gene sporamin, Journal of Biological Chemistry 283 (2008), pp. 11469-11476J. Narvaez-Vasquez and M. L. Orozco-Cardenas. Systemins and AtPeps: Defense-related peptide signals, (2008) Chapter 15 Induced Plant Resistance to Herbivory. ISBN: 978-1-4020-8181-1A. Huffaker et al., An endogenous peptide signal in Arabidopsis activates components of the innate immune response, Proceedings of the National Academy of Sciences of the United States of America 103 (2006), pp. 10098-10103
Created by myself using academic sources
Smartse