Phosphorylase T-state enzyme

Phosphorylase T-state enzyme

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Credit: L.N. JOHNSON, OXFORD MOLECULAR BIOPHYSICS LABORATORY/SCIENCE PHOTO LIBRARY

Caption: Glycogen phosphorylase (T-state). Computer graphic of one molecule of glycogen phosphorylase, an enzyme involved in breaking down glycogen. The action of glycogen phosphorylase provides fuel for muscle contraction; it also maintains the blood glucose balance. Here, the T- or "inactive" state of this enzyme is seen. It is a protein made of two polypeptide subunits (blue and purple). Thus this dimer molecule has a two fold axis. When inactive, N-terminal tails (thick white strands) are positioned as seen. When active, N-terminal tails twist, and red/yellow parts of the molecule alter. The active site is inside the blue subunit.

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Keywords: art, artwork, chemical, chemistry, compound, compounds, enzyme, enzymes, glycogen phosphorylase t-state, graphics, molecular graphic, molecule, molecules, phosphorylase, phosphorylase t-state, protein, proteomics, t-state

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