Abstract:
:When a plasmid encoding the Sleeping Beauty (SB) transposase (pCMV-SB) was cointroduced with luciferase expression plasmid DNA into mouse skeletal muscle at a molar ratio of 4:1, luciferase gene expression was 5 times higher than the expression without pCMV-SB on day 28. This enhancement was not dependent on the presence of transposon (Tn) sequence in luciferase expression plasmid. Southern blot analysis failed to detect luciferase gene insertion into the host genome. Then, expression, a luciferase expression plasmid without Tn, was cointroduced into HeLa cells with or without pCMV-SB. With pCMV-SB, the mRNA amount and the luciferase activity were 1.5 times and 2 times higher, respectively, than without pCMV-SB, even though the cells with pCMV-SB had a smaller copy number of luciferase plasmids than the cells without pCMV-SB. These results suggest that SB transposase enhances the transcription of an exogenous gene regardless of the presence of the Tn sequence.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Masuda K,Yamamoto S,Endoh M,Kaneda Ydoi
10.1016/j.bbrc.2004.03.116subject
Has Abstractpub_date
2004-05-07 00:00:00pages
796-800issue
3eissn
0006-291Xissn
1090-2104pii
S0006291X04006126journal_volume
317pub_type
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