title: [New non-peptide inhibitors of furin].
abstract: Furin, a human subtilisin-related proprotein convertase, is the most important pharmaceutical target because it plays a vital role in development of numerous disease processes. To identify a new class of small non-peptide inhibitors of furin we performed a study of several flavonoids and some natural products. Glycosylated flavonoids: rutin, naringin, baikalin and methylhesperidin were shown to inhibit furin at pH 7.2 reversibly and competitively with Ki- 80-200 microM. The Ki values were derived from Dixon and/or Eadie-Hofstee plots using fluorogenic substrate Boc-Arg-Val-Arg-Arg-AMC. Although studied flavonoids display only a temperate furin inhibition, they may serve as a great potential for the future development of more potent non-peptide inhibitors against furin.
authors.forename: V K
authors.initials: VK
authors.lastname: Kibirev
authors.forename: T V
authors.initials: TV
authors.lastname: Osadchuk
authors.forename: O B
authors.initials: OB
authors.lastname: Vadziuk
authors.forename: M M
authors.initials: MM
authors.lastname: Garazd
mesh_terms: D004305:Dose-Response Relationship, Drug; D004791:Enzyme Inhibitors / Q000737:chemistry / Q000494:pharmacology*; D005419:Flavonoids / Q000737:chemistry / Q000494:pharmacology*; D045683:Furin / Q000037:antagonists & inhibitors* / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D013379:Substrate Specificity
chemical_list: D004791:Enzyme Inhibitors; D005419:Flavonoids; D045683:Furin