Gene activator protein #3 is a photograph by Science Photo Library which was uploaded on March 7th, 2014.
Gene activator protein #3
Gene activator protein. Molecular model of catabolite gene activator protein (CAP, turquoise and orange) bound to a molecule of deoxyribonucleic acid... more
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Gene activator protein #3
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Science Photo Library
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Gene activator protein. Molecular model of catabolite gene activator protein (CAP, turquoise and orange) bound to a molecule of deoxyribonucleic acid (DNA, green and purple). CAP activates genes that enable bacteria to use an alternative energy source when glucose, the preferred energy source, is unavailable. Falling levels of glucose cause an increase in the messenger molecule cAMP, which binds to CAP enabling CAP to bind to DNA. cAMP binds at 2 sites either side of the centre of the CAP molecule. CAP binds to DNA at specific sites, causing it to bend. This enhances the ability of the enzyme RNA polymerase to make mRNA copies of the targeted gene.
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March 7th, 2014
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