题目是Cloning of a gene encoding glycosyltransferase from
Pueraria lobata (Wild.) Ohwi and its expression in
Pichia pastoris
中有一句话According to the CAZY database86 Afr. J. Biotechnol.
(http://www.cazy.org/GlycosylTransferases.html), GTs can
be classified into 92 families using nucleotide diphospho-
sugar, nucleotide monophospho-sugars and sugar
phosphates (EC 2.4.1.x) (Campbell et al., 1997; Coutinho
et al., 2003). 中的nucleotide diphospho-
sugar, nucleotide monophospho-sugars and sugar
phosphates 都是什么意思?