A patient with B cell leukemia donates some cancer cells for analysis. The cells do not contain the usual chromosomal translocations associated with leukemia. Instead, a sporadic mutation seems to have arisen in a certain gene, followed by loss of heterozygosity in the second copy. This gene product is most likely:

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#Question id: 525

#Biochemistry

Under what situation might lactic acidosis occur?

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#Question id: 526

#Biochemistry

Which substance causes muscles to ache during strenuous exercise?

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#Question id: 527

#Biochemistry

What chemical species activates the GLUT4 protein to transport glucose into cells?

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#Question id: 528

#Biochemistry

Once inside a cell, glucose is rapidly phosphorylated to glucose-6-phosphate. What is the main purpose of this phosphorylation?

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#Question id: 529

#Biochemistry

When a muscle is stimulated to contract aerobically, less lactic acid is formed than when it contracts anaerobically because:

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#Question id: 531

#Biochemistry

Glucose labeled with ¹⁴C in C-1 and C-6 gives rise in glycolysis to pyruvate labeled in: