5Louise Fencil Borkenhagen, Eugene P Kennedy. The enzymatic synthesis of cytidine diphosphate choline[J]. The Journal of Biological Chemistry, 1957,227(2) : 951-961.
7Ian R Poxton , David J Leak. The Biosynthesis of a choline Nucleotide by a cell-free extract from Streptococcus Pneu moniae[J] . J Gener Microbio, 1977,100 : 23-29.
8Shoji Shirota , Shiro Watanabet , Isao Takeda. Elects of pyrophosphate on formation of nucleotide derivatives [J ] . Agr BiolChen ,1975,35 (3):1469-1474.
9Yutaka Ado , Yukie Suruki , Toshio Tadokoro ,et al. Regeneration of ATP by immolibized microbial cells and its utilization for the Synthesis of ATP and CDP- choline[J]. J Solid Phase Biochemi, 1979,4 (1) : 43- 55.
10Akira Kimura , Yoshinori Tatsutomi , Naoki Mizushima , et al . Immobiliation of Glycolysis System of Yeasts and production of Cytidine Diphosphate Choline [J]. Appl Microbiolo and Biotechnology, 1978,4(1): 13-16.
