You are studying a pathogenic bacterium which secretes a toxin that affects G protein receptor signaling. You perform a preliminary experiment in which you examine intracellular CAMP levels in untreated and toxin treated cells. The data is in the figure below. How does the toxin affect CAMP levels due to G protein receptor signaling?

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Chapter9: Cell Communication
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You are studying a pathogenic bacterium which secretes a toxin that affects G
protein receptor signaling.
You perform a preliminary experiment in which you examine intracellular CAMP
levels in untreated and toxin treated cells. The data is in the figure below.
How does the toxin affect CAMP levels due to G protein receptor signaling?
Select all that apply
CAMP levels
250
200
150
100
50
0
no Toxin
with Toxin
The toxin stimulates GTP binding to the Gas subunit
The toxin stimulates GTP binding to the Gai subunit
The toxin inhibits GAP or GTPase activating proteins
The toxin stimulates adenylyl cyclase activity
Transcribed Image Text:You are studying a pathogenic bacterium which secretes a toxin that affects G protein receptor signaling. You perform a preliminary experiment in which you examine intracellular CAMP levels in untreated and toxin treated cells. The data is in the figure below. How does the toxin affect CAMP levels due to G protein receptor signaling? Select all that apply CAMP levels 250 200 150 100 50 0 no Toxin with Toxin The toxin stimulates GTP binding to the Gas subunit The toxin stimulates GTP binding to the Gai subunit The toxin inhibits GAP or GTPase activating proteins The toxin stimulates adenylyl cyclase activity
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