Flavonol 3-O-rhamnosyltransferase that catalyzes the transfer of rhamnose from UDP-rhamnose to the 3-OH position of kaempferol and quercetin. Possesses low quercetin 3-O-glucosyltransferase activity in vitro. Source: Recombinant protein corresponding to aa1-453 from Arabidopsis thaliana UDP-glycosyltransferase 78D1, fused to 10X His-Tag at N-terminal, expressed in Yeast. Molecular Weight: ~52.6kD Amino Acid Sequence: MTKFSEPIRDSHVAVLAFFPVGAHAGPLLAVTRRLAAASPSTIFSFFNTARSNASLFSSDHPENIKVHDVSDGVPEGTMLGNPLEMVELFLEAAPRIFRSEIAAAEIEVGKKVTCMLTDAFFWFAADIAAELNATWVAFWAGGANSLCAHLYTDLIRETIGLKDVSMEETLGFIPGMENYRVKDIPEEVVFEDLDSVFPKALYQMSLALPRASAVFISSFEELEPTLNYNLRSKLKRFLNIAPLTLLSSTSEKEMRDPHGCFAWMGKRSAASVAYISFGTVMEPPPEELVAIAQGLESSKVPFVWSLKEKNMVHLPKGFLDRTREQGIVVPWAPQVELLKHEAMGVNVTHCGWNSVLESVSAGVPMIGRPILADNRLNGRAVEVVWKVGVMMDNGVFTKEGFEKCLNDVFVHDDGKTMKANAKKLKEKLQEDFSMKGSSLENFKILLDEIVKV Storage and Stability: Lyophilized and reconstituted products are stable for 6 months after receipt at -20C. Reconstitute with sterile ddH2O. Aliquot to avoid repeated freezing and thawing. Store at -20C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Supplied as a lyophilized powder from 20mM Tris-HCl, 0.5M sodium chloride, pH 8.0, 6% trehalose. Reconstitute with sterile ddH2O to a concentration of 0.1-1mg/ml.
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