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8 Cards in this Set
- Front
- Back
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Why regulate info flow?
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turn on only what is needed at the time, saves energy. also timing processes
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Activator
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helps RNA-P bind to weak promoter or increase activity
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Repressor
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block RNA-P or prevent it from moving along DNA
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Operator
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repressor binding site that overlaps promoter
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Inducer
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small molecule the binds to binding protein signaling it active
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two responses of gene regulation
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genes turned off, repression.
genes turned on, induction |
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Two component regulatory system
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extracellular sensor stimulates repressor to bind
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Quorum sensing
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ex: biolumeneces
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