Abstract
The activity of the enzyme responsible for the synthesis of cytidine diphosphate diglyceride has been found in the 20,000g pellet of a cauliflower (Brassica oleracea) inflorescence homogenate. Greater enzyme activity was found in the pellet after treatment with 0.02% Triton X-100, or after freezing and thawing. Activity was greater when fluoride was included in the reaction mixture. The enzyme has a pH optimum of 5.6, an optimal Mn2+ concentration of 1mm and an optimal Mg2+ concentration of 30 mm. At the optimal concentration, Mn2+ was 4 times better than Mg2+. The utilization of biosynthesized cytidine diphosphate diglyceride can be enhanced by addition of inositol, thereby causing the formation of phosphatidyl inositol.
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Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BLIGH E. G., DYER W. J. A rapid method of total lipid extraction and purification. Can J Biochem Physiol. 1959 Aug;37(8):911–917. doi: 10.1139/o59-099. [DOI] [PubMed] [Google Scholar]
- Carter J. R., Kennedy E. P. Enzymatic synthesis of cytidine diphosphate diglyceride. J Lipid Res. 1966 Sep;7(5):678–683. [PubMed] [Google Scholar]
- Hutchison H. T., Cronan J. E., Jr The synthesis of cytidine diphosphate diglyceride by cell-free extracts of yeast. Biochim Biophys Acta. 1968 Dec 18;164(3):606–608. doi: 10.1016/0005-2760(68)90193-8. [DOI] [PubMed] [Google Scholar]
- KATES M. Hydrolysis of lecithin by plant plastid enzymes. Can J Biochem Physiol. 1955 Jul;33(4):575–589. [PubMed] [Google Scholar]
- KATES M. Lecithinase systems in sugar beet, spinach, cabbage, and carrot. Can J Biochem Physiol. 1954 Sep;32(5):571–583. [PubMed] [Google Scholar]
- KIYASU J. Y., PIERINGER R. A., PAULUS H., KENNEDY E. P. The biosynthesis of phosphatidylglycerol. J Biol Chem. 1963 Jul;238:2293–2298. [PubMed] [Google Scholar]
- LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
- McCaman R. E., Finnerty W. R. Biosynthesis of cytidine diphosphate-diglyceride by a particulate fracgion from Micrococcus cerificans. J Biol Chem. 1968 Oct 10;243(19):5074–5080. [PubMed] [Google Scholar]
- PAULUS H., KENNEDY E. P. The enzymatic synthesis of inositol monophosphatide. J Biol Chem. 1960 May;235:1303–1311. [PubMed] [Google Scholar]
- Petzold G. L., Agranoff B. W. The biosynthesis of cytidine diphosphate diglyceride by embryonic chick brain. J Biol Chem. 1967 Mar 25;242(6):1187–1191. [PubMed] [Google Scholar]
- Sastry P. S., Kates M. Biosynthesis of lipids in plants. II. Incorporation of glycerophosphate-32-P into phosphatides by cell-free preparations from spinach leaves. Can J Biochem. 1966 Apr;44(4):459–467. doi: 10.1139/o66-056. [DOI] [PubMed] [Google Scholar]
- Sumida S., Mudd J. B. Biosynthesis of cytidine diphosphate diglyceride by cauliflower mitochondria. Plant Physiol. 1968 Jul;43(7):1162–1164. doi: 10.1104/pp.43.7.1162. [DOI] [PMC free article] [PubMed] [Google Scholar]