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Which of these is true about protein kinases? a, their catalytic mechanism involves breaking a phospho -anhydride bond and creating a phosphoesterone.
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B, they activate enzymes.
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C, they are allosteric effectors.
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D, they catalyze an energetically unfavorable reaction.
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So what's the protein kinases do.
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They take an atp and they remove a phosphate group from atp and put it on an enzyme.
00:34
So a protein.
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What kind of reaction is this? well, the phosphate groups in atp are linked by phospho -andhydride bonds.
00:44
And when you attach a phosphate group to the protein, you form a phosphoester bond.
00:49
So a is a true statement.
00:51
That's what they do.
00:53
However, b is also true.
00:55
Doing this activates the enzyme...