Isoenzymes of polyphenol oxidase from high l‐dopa containing velvet bean
1978
ZENIN, C. T. | PARK, Y. K.
The seeds, leaves, and stem of velvet bean (Stizolobium aterrimum) contained high concentrations of L‐DOPA and polyphenol oxidase. Polyacrylamide‐gel electrophoresis revealed three polyphenol oxidase isoenzymes in the seeds of velvet bean, two in the leaves and stem. All isoenzymes were active with o‐diphenols such as catechol, caffeic acid, d‐catechin and L‐DOPA. L‐Tyrosine was not active to the isoenzymes. Polyphenol oxidase semipurified by ammonium sulfate fractionation exhibits a smaller Km for L‐DOPA than other substrates.
显示更多 [+] 显示较少 [-]AGROVOC关键词
书目信息
出版者
Blackwell Publishing Ltd
其它主题
Mucuna pruriens var. utilis; Ammonium sulfate
语言
英语
类型
Journal Article; Text
2024-02-27
MODS