Molecular Motors
Molecular motors:molecular motors that move proteins,organelles and other cell parts (
collectively cargo )to all parts of the cell are
100 to 500 KDA ATPases.
==> Attach to their cargo at one end of the molecules and two
microtubules are actin Polymers with the other end had.
==> Convert the energy of ATP into movement along the
cytoskeleton.
three super families of molecular motors
Kinesin
It is double headed molecule that moves its cargo towards the positive ends of microtubules and then bends its neck to other head.
==> Some can kinesin are associated with mitosis and meiosis.
==> Other kinesin perform different function movement Kargo to the negative end of
microtubule.
2 Myosin
==> Divided into 18 classes.
== The heads of the myosin bind to Actin and produce motion by bending the neck regions or walking along
microfilament one head after the other
3 Dynesin
==> Have 2 heads
move particle to negative end of the
microtubules.
Comments
Post a Comment