منابع مشابه
Flavone Glucosiduronic Acids
Polylysine has been shown to possess various biological activities. It is bacteriostatic (Katchalski, Bichowski-Slomnitzki & Volcani, 1953) and virostatic (Stahmann, Graf, Patterson, Walker & Watson, 1951); it inhibits thromboplastic activity (de Vries et al. 1951), fibrinolysis (Ginsburg, de Vries & Katchalski, 1952), the proteolytic activity of pepsin (Katchalski, Berger & Neumann, 1954) and ...
متن کاملTricarbonyl(η6-flavone)chromium(0)
In the title compound, [Cr(C(15)H(10)O(2))(CO)(3)], the Cr(CO)(3) unit exhibits a three-legged piano-stool conformation. The chromium metal centre is coordinated by the phenyl ring of the flavone ligand [Cr-(phenyl centroid) distance = 1.709 (1) Å]. The ligand is approximately planar, the dihedral angles between the γ-pyrone ring and the phenyl ring and between the γ-pyrone and the phenyl-ene r...
متن کاملNMR Data of Flavone Derivatives
The H and C chemical shifts of flavone and its five derivatives were determined completely using the basic 1D and 2D NMR experiments and molecular modeling. Of the six compounds used for our experiments, the NMR data of three compounds were published previously, but we found that the data of two compounds included wrong assignments. Therefore, we report the corrected data and the complete assig...
متن کاملInvestigation of two distinct flavone synthases for plant-specific flavone biosynthesis in Saccharomyces cerevisiae.
Flavones are plant secondary metabolites that have wide pharmaceutical and nutraceutical applications. We previously constructed a recombinant flavanone pathway by expressing in Saccharomyces cerevisiae a four-step recombinant pathway that consists of cinnamate-4 hydroxylase, 4-coumaroyl:coenzyme A ligase, chalcone synthase, and chalcone isomerase. In the present work, the biosynthesis of flavo...
متن کاملExpression of parsley flavone synthase I establishes the flavone biosynthetic pathway in Arabidopsis thaliana.
Arabidopsis thaliana lacks the flavone biosynthetic pathway, probably because of a lack or low activity of a flavone synthase. To establish this biosynthetic pathway in Arabidopsis, we subjected this model plant to transformation with the parsley gene for flavone synthase type I (FNS-I). Transgenic seedlings expressing FNS-I were cultured in liquid medium with or without naringenin, and plant e...
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ژورنال
عنوان ژورنال: Chemistry of Natural Compounds
سال: 1969
ISSN: 0009-3130,1573-8388
DOI: 10.1007/bf00568606