| Autor: |
Mazzacano CA; University of Minnesota, Department of Entomology, St. Paul 55108., Fallon AM |
| Jazyk: |
angličtina |
| Zdroj: |
In vitro cellular & developmental biology : journal of the Tissue Culture Association [In Vitro Cell Dev Biol] 1992 Jun; Vol. 28A (6), pp. 455-8. |
| DOI: |
10.1007/BF02634051 |
| Abstrakt: |
Aedes albopictus mosquito cells resistant to the thymidine analog 5-bromodeoxyuridine (BrdU) were obtained using a single-step selection procedure. The resistant cells were characterized with respect to growth in the presence of BrdU, incorporation of [3H]uridine and [3H]thymidine, and thymidine kinase activity in crude extracts. The LC50 for TK-6 cells was 95 micrograms BrdU/ml, and for TK-8 cells was 45 micrograms/ml. Both clones incorporated [3H]uridine at levels corresponding to those in wild-type cells. TK-6 and TK-8 cells did not incorporate [3H]thymidine into acid-precipitable material, nor did they contain measurable thymidine kinase activity. Thymidine kinase activity in crude extracts from wild-type cells had a Km of 2 microM and a Vmax of 10 pmol.min-1.mg-1 protein. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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