polymethylated quercetin glucoside biosynthesis II - quercetagetin series (Chrysosplenium)
Anzellotti D, Ibrahim RK. Molecular characterization and functional expression of flavonol 6-hydroxylase. BMC Plant Biol. 2004 Dec 13;4():20. PMID: 15596008; PMCID: PMC544895.; Gauthier A, Gulick PJ, Ibrahim RK. cDNA cloning and characterization of a 3'/5'-O-methyltransferase for partially methylated flavonols from Chrysosplenium americanum. Plant Mol Biol. 1996 Dec;32(6):1163–9. doi: 10.1007/bf00041401. PMID: 9002616.; Latchinian-Sadek L, Ibrahim RK. Flavonol ring B-specific O-glucosyltransferases: Purification, production of polyclonal antibodies, and immunolocalization. Archives of Biochemistry and Biophysics. 1991 Aug;289(1):230–6. doi: 10.1016/0003-9861(91)90466-v.; De Luca V, Ibrahim RK. Enzymatic synthesis of polymethylated flavonols in Chrysosplenium americanum. I. Partial purification and some properties of S-adenosyl-l-methionine: Flavonol 3-, 6-, 7-, and 4'-O-methyltransferases. Archives of Biochemistry and Biophysics. 1985 May;238(2):596–605. doi: 10.1016/0003-9861(85)90205-x.; De Luca V, Ibrahim RK. Enzymatic synthesis of polymethylated flavonols in Chrysosplenium americanum. II. Substrate interaction and product inhibition studies of flavonol 3-, 6-, and 4'-O-methyltransferases. Archives of Biochemistry and Biophysics. 1985 May;238(2):606–18. doi: 10.1016/0003-9861(85)90206-1.; KHOURI H, IBRAHIM RK. Kinetic mechanism of a flavonol-ring-B O-glucosyltransferase from Chrysosplenium americanum. European Journal of Biochemistry. 1984 Aug;142(3):559–64. doi: 10.1111/j.1432-1033.1984.tb08322.x.; Bajaj KL, de Luca V, Khouri H, Ibrahim RK. Purification and Properties of Flavonol-Ring B Glucosyltransferase from Chrysosplenium americanum. Plant Physiol. 1983 Jul 01;72(3):891–6. doi: 10.1104/pp.72.3.891.; Schnitsky S. Own your own telephone system? Dent Manage. 1976 Jun;16(6):15–6, 19, 21. PMID: 1068865.