51.3 MB (51.0 MB compressed)
4611 x 3886 pixels
39.1 x 33.0 cm ⏐ 15.4 x 13.0 in (300dpi)
OXFORD MOLECULAR BIOPHYSICS LABORATORY / SCIENCE PHOTO LIBRARY OXFORD MOLECULAR BIOPHYSICS LABORATORY / SCIENCE PHOTO LIBRARY
Computer graphics close-up view of an ATP molecule bound to phosphoglycerate kinase, a glycolytic enzyme. In glycolysis, glucose is converted to pyruvate with the production of ATP: in other words, a catabolic reaction provides metabolic energy (as ATP) at the expense of the degradation of food molecules (glucose). Kinase enzymes catalyse the transfer of phosphoryl groups from one substrate (usually ATP) to another. In this example of horse kinase, the alpha carbon backbone appears as a green ribbon, with ATP indicated in pink. Bonding of oxygen, carbon & nitrogen atoms of ATP appear in red, white & blue respectively. Van der Waal's surface, a weak bond binding the reactant to substrate.
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