Regulation of gene expression

John Stanton-Geddes
18 November 2013

www.johnstantongeddes.org

Overview

Part 1)

Regulation of gene expression


Part 2)

How do bacteria do what they do?

Types of gene expression

  • Constitutive


  • Inducible


  • Repressible


Gene expression 1

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Is tryptophan being synthesized by E. coli?

Gene expression 2

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Is tryptophan being synthesized by E. coli?

Gene expression 3

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Is tryptophan being synthesized by E. coli?

Gene expression 4

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Is tryptophan being synthesized by E. coli?

Gene expression 5

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Is tryptophan being synthesized by E. coli?

Gene expression 6

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Is lactose being metabolized by E. coli?

Gene expression 7

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Is lactose being metabolized by E. coli?

Gene expression 8

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Is lactose being metabolized by E. coli?

Gene expression 9

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Is lactose being metabolized by E. coli?

Gene expression 10

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Is lactose being metabolized by E. coli?

Positive gene regulation