The following proteins are all members of a class of proteins bind to the side o
ID: 62196 • Letter: T
Question
The following proteins are all members of a class of proteins bind to the side of microtubules. They have different functions, some stabilize and some destabilize microtubles.
Capz
tau
XMAP215
MAP2
cofilin
KINESIN 13
tropomyosin
The following accessory protein binds to tubulin dimers and is analogous in function to thymosin.
cofilin
profilin
kinesin-13
stathmin
The following protein binds to the side of actin filaments and stabilizes it through interaction with seven actin molecules.
cofilin
tropomyosin
thymosin
profilin
The following severing protein binds to microtubules and can both promote assembly of new polymers and promote disassembly of oldpolymers.
gelsolin
katanin
MAP2
TAU
The following protein binds to the side of actin filaments and destabilizes them by twisting the filament and weakining the contacts between the actin molecules.
cofilin
profilin
Arp
tropomyosin
A.Capz
B.tau
C.XMAP215
D.MAP2
E.cofilin
F.KINESIN 13
G.tropomyosin
The following accessory protein binds to tubulin dimers and is analogous in function to thymosin.
A.cofilin
B.profilin
C.kinesin-13
D.stathmin
The following protein binds to the side of actin filaments and stabilizes it through interaction with seven actin molecules.
A.cofilin
B.tropomyosin
C.thymosin
D.profilin
The following severing protein binds to microtubules and can both promote assembly of new polymers and promote disassembly of oldpolymers.
A.gelsolin
B.katanin
C.MAP2
D.TAU
The following protein binds to the side of actin filaments and destabilizes them by twisting the filament and weakining the contacts between the actin molecules.
cofilin
profilin
Arp
tropomyosin
Explanation / Answer
1. MAP2 and tau proteins are involved in stabilization of microtubules. Options B and D are correct.
2. Profilin is the accessory protein binds to tubulin dimers and is analogous in function to thymosin. Option B is correct.
3. Katanin severing protein binds to microtubules and can both promote assembly of new polymers and promote disassembly of oldpolymers. Option B is correct.
4. Arp protein binds to the side of actin filaments and destabilizes them by twisting the filament and weakining the contacts between the actin molecules. Option C is correct.
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