9vsk

Crystal structure of anthocyanin 4'-O-methyltransferase from Vitis vinifera L.

spinqualitylabelsall models 9vsk, resolution 2.78Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 9vsk is a 8 chain structure with sequence from Vitis vinifera. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 2.78Å Ligands: SAH Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function FAOMT_VITVI Mediates O-methylation of anthocyanins. Anthocyanins are major pigments in grapes: at ripening initiation in red grapevine berries, the exocarp turns color from green to red and then to purple due to the accumulation and extent of methylation of anthocyanins. Catalyzes both 3' and 5' O-methylation of anthocyanins, with a preference for glycosylated substrates. Active on both anthocyanins and flavonols in vitro. Most active with delphinidin 3-glucoside but also acts on cyanidin 3-glucoside, cyanidin, myricetin, quercetin and quercetin 3-glucoside. Not able to methylate flavan type skeletons with chiral centers, such as catechins or dihydroquercetin.

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