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9 Cards in this Set
- Front
- Back
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Promoter |
Site on the DNA bound by the RNA polymerase; directs the initiation of transcription. |
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Activator |
Protein that binds to a site on the DNA; assists binding of the RNA polymerase to the promoter, resulting in increased transcription initiation. |
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Activator Binding Site |
Site on the DNA bound by the activator. |
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Repressor |
Protein that binds to the operator site on the DNA, inhibiting transcription. |
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Operator |
Site on the DNA bound by the repressor. |
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Effector |
Small molecule that binds to activator or repressor proteins, modifying their gene regulation activity. |
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Effector - Inducer |
Effector that increases transcription by enabling an activator or disabling a repressor. |
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Effector - Corepressor |
Effector that decreases transcription by enabling a repressor. |
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Key Compoments of an Operon |
(1) Promoter, (2) Activator, (3) Activator Binding Site, (4) Repressor, (5) Operator, (6) Effector, (7) Inducer, and (8) Corepressor. |
