7VEL

Crystal structure of Phytolacca americana UGT3 with UDP-2fluoroglucose

7VEL の概要

• エントリーDOI: 10.2210/pdb7vel/pdb
• 分子名称: Glycosyltransferase, 1,2-ETHANEDIOL, 1,4,7,10,13,16-HEXAOXACYCLOOCTADECANE, ... (6 entities in total)
• 機能のキーワード: ugt, glycosyltransferase, udp-2fglc, transferase
• 由来する生物種: Phytolacca americana (American pokeweed)
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 116761.65

構造登録者

Maharjan, R.,Fukuda, Y.,Nakayama, T.,Nakayama, T.,Hamada, H.,Ozaki, S.,Inoue, T. (登録日: 2021-09-09, 公開日: 2022-03-02, 最終更新日: 2023-11-29)

主引用文献

Maharjan, R.,Fukuda, Y.,Nakayama, T.,Nakayama, T.,Hamada, H.,Ozaki, S.I.,Inoue, T.
Structural basis for substrate recognition in the Phytolacca americana glycosyltransferase PaGT3.
Acta Crystallogr D Struct Biol, 78:379-389, 2022

PubMed Abstract: Capsaicinoids are phenolic compounds that have health benefits. However, the pungency and poor water solubility of these compounds limit their exploitation. Glycosylation is a powerful method to improve water solubility and reduce pungency while preserving bioactivity. PaGT3, a uridine diphosphate glycosyltransferase (UGT) from Phytolacca americana, is known for its ability to glycosylate capsaicinoids and other phenolic compounds. While structural information on several UGTs is available, structures of UGTs that can glycosylate a range of phenolic compounds are rare. To fill this gap, crystal structures of PaGT3 with a sugar-donor analogue (UDP-2-fluoroglucose) and the acceptors capsaicin and kaempferol were determined. PaGT3 adopts a GT-B-fold structure that is highly conserved among UGTs. However, the acceptor-binding pocket in PaGT3 is hydrophobic and large, and is surrounded by longer loops. The larger acceptor-binding pocket in PaGT3 allows the enzyme to bind a range of compounds, while the flexibility of the longer loops possibly plays a role in accommodating the acceptors in the binding pocket according to their shape and size. This structural information provides insights into the acceptor-binding mechanism in UGTs that bind multiple substrates.

PubMed: 35234151
DOI: 10.1107/S2059798322000869

実験手法

X-RAY DIFFRACTION (2.15 Å)