Using antisense nucleic acid technology to study the influence of POL? on genetic stability / 中国病理生理杂志
Chinese Journal of Pathophysiology
; (12)1999.
Article
em Zh
| WPRIM
| ID: wpr-521347
Biblioteca responsável:
WPRO
ABSTRACT
AIM: To establish cell line FL-POL? - and to study the role of POL?(polymerase kappa) on genetic stability. METHODS: A mammalian expression vector expressing antisense POL? gene fragment pMAMneo -amp -- POL? was constructed by cloning the 1 690-1 918 fragment of POL? gene into the mammalian expression vector pMAMneo-amp - in antisense orientation. FL cells were fransfected with this antisense RNA expressing vector and selected by G418. Based on the shuttle-plasmid pZ189, the mutation assay was made. RESULTS: The spontaneous mutation frequency of supF tRNA gene in the plasmid replicated in the FL-POL? - was 11.2?10 -4 , while it was 4.9?10 -4 and 3.7?10 -4 in the control cells FL and FL-M , respectively. CONCLUSION: POL? playes an important role in maintenance of genetic stability.
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Base de dados:
WPRIM
Idioma:
Zh
Revista:
Chinese Journal of Pathophysiology
Ano de publicação:
1999
Tipo de documento:
Article