Characterization of dopa betaine, tyrosine betaine and N-dimethyltyrosine from Lobaria laetevirens
作者:T. Bernard、G. Goas、J. Hamelin、M. Joucla
DOI:10.1016/s0031-9422(00)82656-4
日期:1981.1
Abstract DOPA betaine, tyrosine betaine and N -dimethyltyrosine were isolated from the lichen Lobaria laetevirens . Their structures were determined by ra
摘要 从地衣Lobaria laetevirens 中分离得到多巴甜菜碱、酪氨酸甜菜碱和N-二甲基酪氨酸。它们的结构由 ra 决定
Ergothioneine Biosynthetic Methyltransferase EgtD Reveals the Structural Basis of Aromatic Amino Acid Betaine Biosynthesis
作者:Allegra Vit、Laëtitia Misson、Wulf Blankenfeldt、Florian P. Seebeck
DOI:10.1002/cbic.201402522
日期:2015.1.2
structures of the histidine methyltransferaseEgtD. Two active‐site mutations were shown to convert this enzyme into a proficient tryptophan methyltransferase. A bioinformatics search based on these substrate specificity determinants in EgtD identified tyrosine‐ and tryptophan‐specific methyltransferases in many fungal genomes, suggesting that aromaticaminoacidbetainebiosynthesis is a frequent fungal