| Autor: |
A E Harper, R S Eisenstein |
| Rok vydání: |
1984 |
| Předmět: |
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| Zdroj: |
Journal of Biological Chemistry. 259:9922-9928 |
| ISSN: |
0021-9258 |
| DOI: |
10.1016/s0021-9258(17)42787-6 |
| Popis: |
An in vitro system prepared from rat liver postmitochondrial supernatant exhibits a high rate of protein synthesis for an extended period of time. This system initiates translation of either endogenous or exogenous mRNA, incorporates Met at a rate of 13 pmol/mg of postmitochondrial supernatant protein/min, maintains this rate for at least 90 min, and performs several rounds of translation/mRNA molecule. Up to 50% of the activity is due to reinitiation of protein synthesis using endogenous mRNA. In addition, 60-70% of the protein synthesized was released from ribosomes into the medium. Addition of globin mRNA stimulates protein synthesis and results in the synthesis of a protein that comigrates with authentic rabbit globin. Black beetle virus mRNA 2 also stimulates protein synthesis and results in synthesis of a protein with molecular weight corresponding to that of the mature viral protein. With endogenous rat liver mRNA this system synthesizes a large number of proteins. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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