microtubular transport Flashcards
1
Q
axons: direction and proteins
A
anterograde- kinesins (cell body to terminus)
retrograde- dynein (the opposite)
2
Q
Myosin II
A
“Conventional myosin”
found in both muscle/non muscle paired with molecules linked by tails ATPase head binds to actin moves toward PLUST end of actin
3
Q
Myosin I
How do I differ from the others?
A
“Unconventional myosin”
single ATPase head binds to F-actin
4
Q
Myosin V
How do I differ from the others?
A
“unconventional myosin”
Two heads and double tail
head binds to F-actin
5
Q
Kinesin
A
Found in all cell types
Two heads bind to microtubules
Tail binds to cell membranes of vesicles
Moves toward plus end of microtubule
6
Q
Dynein
A
Found in all cell types
two heads bind to microtubules
tail binds to cell membranes of vesicles
moves toward minus end of microtubule
