Research Article

Comparative Analysis of the Interaction between Different Flavonoids and PDIA3

Table 1

Stern-Volmer constant (), bimolecular quenching rate constant (), number of binding sites (), binding constant (), and dissociation constant () of several flavonoid-PDIA3 systems.

Flavonoid (M−1) (M−1 s−1) (M−1) (M)

Flavone
 Trimethoxyflavone
 Eupatorin-5-methyl ether
 Eupatorin
 Apigenin
 Apigenin-7-glucoside
 Luteolin-7-glucoside
Flavanone
 Naringenin
Isoflavone
 Genistein
Flavonol
 Rhamnetin
 Isorhamnetin
 3-O-Methyl-quercetin
 Fisetin
 Kaempferol
 Morin
 Quercetin
 Quercitrin
 Isoquercetin
 Rutin
Anthocyanin
 Cyanidin

Data were calculate from fluorescence quenching analysis using PDIA3 in reduced conditions (pH 7.4, 25°C) and increasing concentration (0 to ) of different flavonoids. are reported as mean and standard deviation of at least three independent experiments. The number of binding sites (), the binding constant (), and the dissociation constant () were estimated using the equation described by Bi et al. [31] and the reiterative calculation process described by Sun et al. [32].