Adenosine triphosphate: Difference between revisions
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==Structure== | ==Structure== | ||
<StructureSection load='' size='340' side='right' caption='Caption for this structure' scene='82/824011/Atp_mg/1'> | <StructureSection load='' size='340' side='right' caption='Caption for this structure' scene='82/824011/Atp_mg/1'> | ||
ATP (reload <scene name='82/824011/Atp_mg/1'>initial scene</scene>) contains a nitrogenous base (adenine <jmol><jmolLink><script> | ATP (reload <scene name='82/824011/Atp_mg/1'>initial scene</scene>) contains a nitrogenous base (adenine <jmol><jmolLink><script> select base and not (_P or _O)); selectionHalos ON; delay 0.5;selectionHalos OFF;</script><text>☼</text></jmolLink> </jmol>), a sugar (ribose <jmol><jmolLink><script> select ATP and not base; selectionHalos ON; delay 0.5;selectionHalos OFF;</script><text>☼</text></jmolLink> </jmol>) and the triphosphate group (<jmol><jmolLink><script> select base and (_P or _O)); selectionHalos ON; delay 0.5;selectionHalos OFF;</script><text>☼</text></jmolLink> </jmol>). Within enzyme active sites, the beta and gamma phosphate groups often bind to a magnesium cation which helps negatively charged nucleophiles to approach the negatively charged triphosphate group. | ||
</StructureSection> | </StructureSection> | ||
== References == | == References == | ||
<references/> | <references/> |