Question

The heavy chain of cytoplasmic dyenin consists of ____________.

a) AAA domains
b) Dynein light chains
c) Tubulin-binding domains
d) GTPase domains

Answer 1

The heavy chain of cytoplasmic dyenin consists of GTPase domains, which are responsible for the ATPase activity of dyenin.

Step-by-step explanation:

The heavy chain of cytoplasmic dyenin consists of GTPase domains. Each chain of heavy and light chains contain several homologous units of about 110 amino acid residues within each unit, or domain. The heavy chain's GTPase domains are responsible for the ATPase activity of dyenin, which allows it to use the energy from ATP hydrolysis to power intracellular motility.