| Autor: |
Johnson, Janice H., Reed, Brent C., Rilling, Hans C. |
| Zdroj: |
Journal of Biological Chemistry; January 1974, Vol. 249 Issue: 2 p402-406, 5p |
| Abstrakt: |
Some nonphotosynthetic microorganisms synthesize carotenes in response to light. Previous experiments demonstrated that the enzymes necessary for the synthesis and metabolism of phytoene were photoinduced in a Mycobacteriumsp. We now report that prephytoene pyrophosphate synthetase is also totally photoinduced. Geranylgeranyl pyrophosphate synthetase (prenyltransferase), which is present in dark-grown cells, is increased severalfold by photoinduction. The enzymes necessary for the synthesis of high molecular weight (C35to C40) polyprenyl pyrophosphates and isopentenyl pyrophosphate isomerase were unaffected by photoinduction. This is the first report of the photoinduction of enzymes acting prior to prephytoene pyrophosphate. These enzymes are not restricted to carotene synthesis. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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