This invention provides recombinant glycosyltransferase fusion proteins having a desired level of expression and enzymatic activity (for example, acceptor substrate specificity or catalytic activity). The fusion proteins of the invention have a functional domain of a first glycosyltransferase joined, directly or through a peptide linker, to a subsequence of a functional domain of a second glycosyltransferase. Nucleic acids that encode the fusion proteins are also provided, as are host cells for expressing the fusion proteins and methods of making and using the fusion proteins of the invention.
本发明提供了
重组糖基转移酶融合蛋白,其具有所需的表达
水平和酶活性(例如,受体底物特异性或催化活性)。本发明的融合蛋白具有第一种糖基转移酶的功能域,直接或通过肽链连接,与第二种糖基转移酶的功能域的子序列结合。本发明还提供了编码融合蛋白的核酸,以及用于表达融合蛋白的宿主细胞和制备和使用本发明的融合蛋白的方法。