Reciprocal Regulation of Arabidopsis UGT78D2 and BANYULS Is Critical for Regulation of the Metabolic Flux of Anthocyanidins to Condensed Tannins in Developing Seed Coats
2005
Lee, Y. (Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea) | Yoon, H.R. (Kyung Hee University, Suwon, Republic of Korea) | Paik, Y.S. (Kyung Hee University, Suwon, Republic of Korea) | Liu, J.R. (Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea) | Chung, W.I. (Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea) | Choi, G.T. (Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea), E-mail: gchoi@kaist.ac.kr
Anthocyanins are major color pigments in plants. Their biosynthetic pathways are well established, and the majority of these biosynthetic enzymes have been identified in model plants such as Arabidopsis, maize, and petunia. One exception in Arabidopsis is UDP-glucose:flavonoid 3-O-glucosyltransferase (UF3GT). This enzyme is known as Bronze1(Bz1) in maize, where it converts anthocyanidins to anthocyanins. Phylogenetic sequence analysis of the Arabidopsis thaliana UDP-glycosyltransferase (UGT) family previously indicated that UGT78D1, UGT78D2, and UGT78D3 cluster together with UF3GTs from other species.
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