ISSN:
1573-2657
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Summary We have succeeded in controlling the sliding movement of myosin-coated magnetizable beads on actin cables in Nitellopsis cells by the inhomogeneous magnetic field adjacent to a small, strong permanent magnent. The relation between magnetic force acting on the bead and the bead velocity was, in many respects, similar to that obtained from the same system by the use of centrifugal force (Oiwa et al., 1990). In particular, force favouring the motion (negative load) had little effect on the velocity until it was sufficient to pull the bead off the actin, whereas a relatively small positive load caused a reduction in velocity to a plateau value. Although the present method does not allow a good control of force direction, it demonstrates the promise of magnetic force in studying in vitro motility.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00121292
Permalink
