Systemin
Systemin is an 18-amino acid peptide hormone originally found in the leaves of tomato plants, as well as other plants in the Solanaceae family. Systemin increases expression of defense-related genes and gene products. Systemin regulates synthesis of jasmonic acid, which modulates wound-induced synthesis of protease inhibitors. Systemin may also bind DNA.
References PubMed ID：:http://www.ncbi.nlm.nih.gov/pubmed/18974373
| Cas No. |
137181-56-7 |
|---|---|
| Purity |
≥95% |
| Formula |
C85H144N26O28S |
| Formula Wt. |
2010.32 |
| IUPAC Name |
(3S)-3-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-2-[[(2S)-1-[(2S)-1-[(2S)-6-amino-2-[[(2S)-2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S)-2-aminopropanoyl]amino]-3-methylbutanoyl]amino]-5-oxopentanoyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]amino]-3-hydroxypropanoyl]amino]hexanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-4-[(2S)-2-[(2S)-2-[(2S)-2-[[(2S,3R)-2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S)-2,6-diaminohexanoyl]amino]-4-methylsulfanylbutanoyl]amino]-5-oxopentanoyl]amino]-3-hydroxybutanoyl]amino]-3-carboxypropanoyl]oxycarbonylpyrrolidine-1-carbonyl]pyrrolidin-1-yl]-4-oxobutanoic acid |
Pearce G. Systemin, hydroxyproline-rich systemin and the induction of protease inhibitors. Curr Protein Pept Sci. 2011 Aug;12(5):399-408. PMID: 21418016.
Bing T, Chang T, Yang X, et al. G-quadruplex DNA aptamers generated for systemin. Bioorg Med Chem. 2011 Jul 15;19(14):4211-9. PMID: 21715176.
Sun JQ, Jiang HL, Li CY. Systemin/Jasmonate-mediated systemic defense signaling in tomato. Mol Plant. 2011 Jul;4(4):607-15. PMID: 21357647.
Pearce G, Bhattacharya R, Chen YC. Peptide signals for plant defense display a more universal role. Plant Signal Behav. 2008 Dec;3(12):1091-2. PMID: 19704502.
