| Autor: |
Kudo, Kozo, Kikuchi, Mikio, Ishida, Nakao |
| Zdroj: |
Antimicrobial Agents and Chemotherapy; April 1972, Vol. 1 Issue: 4 p289-295, 7p |
| Abstrakt: |
A study of the biogenesis of the antitumor protein antibiotic neocarzinostatin (NCS) was undertaken. The production of NCS, as well as the growth of Streptomyces carzinostaticusin a production medium, was sensitive to puromycin, chloramphenicol, and actinomycin D. However, when a 12-hr culture in production medium was transferred to a nongrowth medium consisting of a phosphate buffer with Mg2+and Ca2+, rapid NCS synthesis and liberation occurred. NCS production in this medium was no longer sensitive to actinomycin D, but was sensitive to puromycin and chloramphenicol. The conversion of a precursor NCS to an active form was shown to occur in this medium. Subcellular analysis suggested that NCS synthesis occurred by a mechanism similar to that of protein synthesis by membrane polysomes. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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