Enzyme dihydrofolate reductase

Enzyme dihydrofolate reductase

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Credit: BIOSYM TECHNOLOGIES, INC./SCIENCE PHOTO LIBRARY

Caption: Dihydrofolate reductase. Molecular graphic of the enzyme dihydrofolate reductase, which converts the vitamin folic acid into a coenzyme. This molecule, a type of protein, is shown partly in simple chain form (green ribbon) and partly in individual atoms (coloured spheres: white = hydrogen; red = oxygen; green = carbon; blue = nitrogen). Coloured grids show fields of electrostatic potential around the molecule. These define the enzyme's true chemical "shape", which determines how it reacts with other molecules. Enzymes and coenzymes control chemical reactions inside living cells. This enzyme is from the human gut bacterium Escherichia coli.

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Keywords: chemical, chemistry, coenzyme, compound, compounds, dihydrofolate reductase, e. coli enzyme, electrostatic potential map, enzyme, enzymes, molecular graphic, molecule, molecules, protein, proteomics, vitamin folic acid

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