Related Experiment Videos
Presence in growth-arrested cells of cellular proteins that interact with simian virus 40 small-t antigen
Journal of Virology
|June 1, 1982
Abstract:
Two cellular proteins, 56K and 32K, found in association with simian virus 40 small-t antigen were not induced by viral infection. In addition, the proteins were expressed by cells in the growth arrest period, a time in which small-t function is of importance in infection and transformation.
Insights
Cellular proteins 56K and 32K associate with simian virus 40 small-t antigen but are not induced by viral infection. These proteins are expressed during cell growth arrest, a critical phase for small-t antigen function.
Area of Science:
- Molecular biology
- Virology
- Cell biology
Background:
- Simian virus 40 (SV40) small-t antigen plays a role in viral infection and cell transformation.
- Cellular proteins 56K and 32K have been observed in association with SV40 small-t antigen.
Purpose of the Study:
- To investigate whether the cellular proteins 56K and 32K are induced by SV40 viral infection.
- To determine the expression pattern of 56K and 32K proteins during different cellular states, particularly growth arrest.
Main Methods:
- Analysis of protein expression in SV40-infected cells.
- Examination of 56K and 32K protein levels during cell cycle progression and growth arrest.
Main Results:
- The cellular proteins 56K and 32K were not found to be induced by SV40 viral infection.
- Expression of 56K and 32K proteins was observed during the cell growth arrest period.
Conclusions:
- The association of 56K and 32K proteins with SV40 small-t antigen is not dependent on viral induction.
- These cellular proteins may play a significant role in SV40 small-t antigen functions during cell growth arrest, impacting infection and transformation processes.