A novel D-galactosyl-β1â3-N-acetyl-D-hexosamine phosphorylase cloned from Bifidobacterium infantis (BiGalHexNAcP) was used with a recombinant E. coli K-12 galactokinase (GalK) for efficient one-pot two-enzyme synthesis of T-antigens, galacto-N-biose (Galβ1â3GalNAc), lacto-N-biose (Galβ1â3GlcNAc), and their derivatives.
一种从婴儿双歧杆菌(Bifidobacterium infantis)中克隆的新型
D-半乳糖基-δ1â3-N-乙酰基-D-己糖胺
磷酸化酶(BiGalHexNAcP)与
重组大肠杆菌(E.大肠杆菌 K-12 半
乳糖激酶(GalK),高效地实现了 T-抗原、半
乳糖-N-
生物糖(Galδ1â3GalNAc)、
乳糖-N-
生物糖(Galδ1â3GlcNAc)及其衍
生物的一步法双酶合成。