Lecture 19 Cytoskeleton II: Polymerization Flashcards
1
Q
What are two ways that the cytoskeleton supports movement
A
motor proteins and polymerization
2
Q
What is nucleation
A
bringing together monomers to start a new filament
3
Q
What are formins
A
proteins that help nucleate filaments
4
Q
What is Elongation
A
adding monomers to growing filaments
5
Q
What is steady state
A
NOT filament growth; movement by adding at one end and taking off from another
6
Q
Cell motility is driven by what
A
polymerization of the actin cytoskeleton
7
Q
What is cdc-42
A
induces filopedia (spikes of growth)
8
Q
What is Rac
A
induces lamellipodia (ruffles of growth)
9
Q
What is Rho
A
induces stress fibers (holds the cell in place)
