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Charakterizácia polyfenoloxidázy z latexu lastovičníka väčšieho (Chelidonium majus L.)
: F. Bilka; M. Vanko; A. Balažová; A. Bílková; I. Holková
: Univerzita Komenského v Bratislave, Farmaceutická fakulta, Katedra bunkovej a molekulárnej biológie liečiv
: Čes. slov. Farm., 2007; 56, 90-94
: Original Articles
Lastovičník väčší podobne ako iné rastliny z čeľade Papaveraceae produkuje benzylizochinolínové alkaloidy, predovšetkým benzofenantridíny. Polyfenoloxidáza (PPO) je pravdepodobne zapojená do tvorby dopamínu, ktorý je jedným z prekurzorov norkoklaurínu, prvého intermediátu s benzylizochinolínovou štruktúrou. V rámci práce bolo zistené, že PPO prítomná v latexe lastovičníka je lokalizovaná v organelách, ktoré slúžia k uskladneniu alkaloidov (tzv. 1000 g organely). Enzým bol purifikovaný afinitnou chromatografiou do elektroforetickej homogenity, má relatívnu molekulovú hmotnosť približne 65 kDa a vykazuje dve aktivity – monofenolázovú a difenolázovú. Použitím polymerázovej reťazovej reakcie sa podarilo amplifikovať časť génu PPO z oblasti aktívneho miesta.
Kľúčové slová:
Chelidonium majus L. – polyfenoloxidáza – latex – sanguinarín
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Pharmacy Clinical pharmacology
Article was published inCzech and Slovak Pharmacy
2007 Issue 2-
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Most read in this issue- Hypericin and hyperforin: bioactive components of St. John’s Wort (Hypericum perforatum) Their isolation, analysis and study of physiological effect
- Pellets preparation by the drug layering technique in a rotary processor
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- Antioxidants, free radicals, mechanism of action and application in the therapy of the sulfur mustard caused injury
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