Cau tao ADN

Nucleosides = Base + Sugar

Nucleotides = Base + Sugar +
Phosphate


Different Forms of Nucleotides

The energy released from ATP hydrolysis is used to drive
the phosphorylation of D-gluose (coupled reactions)
ATP as a Chemical Energy Source

Breakage of the Phosphoanhydride
Bond in ATP

Without ATP, the OH
–
group cannot be displaced

This reaction does not occur without ATP because of the
poor leaving group

Phosphoryl Transfer Reaction
Mechanism I

Phosphoryl Transfer Reaction
Mechanism II

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