Question 1
Question
What is the role of the Rb Susceptibility gene?
Question 2
Question
What protein does Rb bind to?
Question 3
Question
What is the role of the protein bound to Rb?
Answer
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Transcription factor
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Kinase
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Phosphatase
Question 4
Question
What are the target genes of the Rb bound protein?
Question 5
Question
How is Rb phosphorylated and deactivated?
Answer
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By Cyclin
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By CDK
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By a cyclin/CDK dimer
Question 6
Question
What protein phosphorylates CDK?
Question 7
Question
Which forms first during G1?
Answer
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CDK/Cyclin D
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CDK/Cyclin E
Question 8
Question
What causes the production of Cyclin/CDK E &D?
Answer
-
Jun Activity
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AP1 Activity
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Myc Activity
Question 9
Question
Which is required to activate E2F?
Answer
-
Cyclin/CDK D
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Cyclin/CDK E
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Both
-
Neither
Question 10
Question
Name 3 CDK inhibitors
Question 11
Question
Which of the following binds to CDK, & twists its head to block the active site?
Question 12
Question
Which of the following bind to cdk with cyclin and physically block the active site?
Question 13
Question
How are the CDK inhibitors controlled?
Question 14
Question
How long is the bp sequence p53 binds to?
Question 15
Question
Put the following p53 domains in order A- Signalling Domain B- Damaged DNA binding domain C-Oligomerization Domain D- Activation Domain E- DNA binding domain
Answer
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D-A-E-C-B
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D-A-C-E-B
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A-D-C-E-B
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B-A-D-E-C
Question 16
Question
How does p53 work in its active form?
Answer
-
As a monomer
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As a dimer
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As a tetramer
Question 17
Question
What does p53 bind to when active?
Answer
-
TATA boxes
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E-boxes
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Damaged DNA
Question 18
Question
What can cause the activation of p53?
Answer
-
Acetylation
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Phosphorylation
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Ionising radiation
Question 19
Question
What does p53 do if activated in G1?
Question 20
Question
What happens if p53 is activated after G1?
Answer
-
Bax is transcribed- it initiates apoptosis
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Bax is transcribed- It initiates S phase
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Bax is transcribed- It inhibits M phase
Question 21
Question
Where do mutations causing non-function tend to occur in p53?
Question 22
Question
How is p53 removed from the cell?