The rates of synthesis of various species of RNA were examined in synchronously growing HeLa cells as a function of stage in the cell generation cycle. The synthesis of each RNA species examined occurs throughout interphase, but undergoes a two-fold increase in rate during early S which is dependent
Essential factors in the kinetic analysis of RNA synthesis in HeLa cells
β Scribed by Larry Puckett; James E. Darnell
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 937 KB
- Volume
- 90
- Category
- Article
- ISSN
- 0021-9541
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Further evidence of mRNA in HeLa cells with a halfβlife two hours or less is given. A kinetic model of RNA synthesis in HeLa cells is described in which equilibration of label occurs first into the acid soluble pool (evidence is given that this pool feeds RNA synthesis) and thence in nuclear and cytoplasmic molecules. The measured accumulation of label in nuclear and cytoplasmic poly(A) is examined with the model and parameters were found which are consistent with the quantitative transfer of nuclear poly(A) to the cytoplasm. The strengths and limitations of the model are discussed.
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