Which of the following is correct concerning the sarcoplasmic reticulum Ca2+ ATPase?
A) It is an example of an ABC transporter that interconverts between closed and open forms.
B) It transports Ca2+ from the sarcoplasmic reticulum into the cytoplasm.
C) This P-type ATPase maintains a calcium ion concentration of approximately 0.1 M in the cytosol and 1.5 mM in the sarcoplasmic reticulum.
D) One Ca2+ is transported for each ATP hydrolyzed.
E) None of the answers is correct.
Correct Answer:
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