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Optimal Conditions for the Production of Intracellular Cytosine Deaminase from Chromobacterium violaceum YK 391.  

Kim, Jung (Department of Dental Hygiene)
Kim, Hyun-Soo (Department of Microbiology, Keimyung University)
Yoo, Dae-Sik (Department of Microbiology, Keimyung University)
Publication Information
Microbiology and Biotechnology Letters / v.30, no.4, 2002 , pp. 367-372 More about this Journal
Abstract
Cytosine deaminase (cytosine aminohydrolase, EC 3.5.4.1) stoichiometrically catalyzes the hydrolytic deamination of cytosine and 5-fluorocytosine to uracil and 5-fluorouracil, respectively. Optimal medium compositions for production of cytosine deaminase from Chromobacterium violaceum YK 391 were 0.75% soluble starch, 1.5% peptone, 0.1% meat extract, 0.1% yeast extract, 0.01% NaCl, 0.01% $MgCl_2{\cdot}7H_2O$ and 0.05% $K_2HPO_4$. The optimal pH of medium and incubation temperature were 7.0 and $30^{\circ}C$, respectively. C. violaceum reached stationary phase after 30 hr, and produced a maximum cytosine deaminase (120 units/ml) after 72 h in batch culture.
Keywords
Cytosine deaminase; Chromobacterium violaceum YK 391;
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Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 2
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