The effect of cisplatin and transplatin on the conformation and association of F-actin.
β Scribed by Zeng Hui Hui; Lu Jing Fen; Wang Kui
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 261 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1065-6995
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β¦ Synopsis
Abstract
The effects of cisplatin and transplatin on the conformation and association of Fβactin were studied by ESR, turbidimetry and CD measurement. The results indicate that the major component affecting Fβactin secondary conformation is derived from their effect on the tertiary or quaternary conformation and association states of Fβactin. The effect of platinum is seen by the fact that binding of cisplatin causes first an increase in molecular size followed by a later decrease. The induction time for the association depended on the concentration of cisplatin. Transplatin was able to reach the target site more readily, resulting in the dissociation of Fβactin even at a very low concentration.
π SIMILAR VOLUMES
To discriminate between the influences of a motoneuron and muscle activity on the conformation of actin filaments, the extrinsic polarized fluorescence [of rhodamine-phalloidin and N-(iodoacetylamine)-1-naphthylamine-5-sulfonic acid attached to F-actin] was measured in "ghost" fibers from intact rat