Molecule of Ribonuclease -A and substrate

Molecule of Ribonuclease -A and substrate

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Credit: J.C. REVY, ISM/SCIENCE PHOTO LIBRARY

Caption: Molecular computer graphics image of ribonuclease A, an enzyme involved in the destruction of messenger RNA (mRNA) in the cytoplasm of bacteria. This image shows the substrate (partly coloured orange) engaged in the active site on the enzyme's molecular surface (the depression at left in the large blue structure). Enzymes are biological catalysts, proteins that speed up the rates of reactions within cells. Each enzyme is specific for a particular reaction; interaction occurs (typically as a weak bond) between an active site on the enzyme & a reactant (or substrate), due to the arrangement of mutually- attractive groups of atoms.

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Keywords: bacteria, chemical, chemistry, compound, compounds, enzyme, enzyme and, enzyme-substrate reaction, enzymes, lock and key, messenger rna, molecular graphic, molecule, molecules, mrna, ribonuclease-a, ribonuclease-a and, substrate

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