Abstract
Simian Virus 40 large T antigen is a multi-functional protein that is involved in the initiation of viral DNA replication, regulation of viral transcription and cell transformation. Bacterial expression vectors, pER23-1 and pER23-2, that are based on the regulatable rac promoter were used to produce T antigen either as a free protein or as a fusion protein. We have observed efficient transcription of the cloned T antigen gene in most of the recombinants. However, expression of the T antigen protein was inefficient and most of the expressed protein was truncated. This may be due to differences in codon usage in E. coli or to rapid protein degradation.
Original language | English |
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Pages (from-to) | 1129-1137 |
Number of pages | 9 |
Journal | Biochemical and Biophysical Research Communications |
Volume | 169 |
Issue number | 3 |
DOIs | |
State | Published - 29 Jun 1990 |