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SIZIF [17.4K]
3 years ago
7

What is CAP?How does CAP work?

Biology
1 answer:
malfutka [58]3 years ago
4 0

Answer:

Explanation:

The Escherichia coli catabolite gene activator protein (CAP) is a DNA binding protein involved with the transcription of several genes, including those that code for enzymes involved in the metabolism of certain sugars (i.e. lactose, maltose, and arabinose.) <u>Basically, CAP is responsible for the global regulation of carbon utilization.</u> Upon binding cAMP, CAP binds to a conserved DNA sequence from which it can either activate or repress transcription initiation from various promoters. In some cases clusters of several promoters are all controlled by a single cAMP-CAP complex bound to the DNA.

Once CAP has bound cAMP, the protein exhibits a higher affinity for a specific conserved DNA sequence. When the intracellular level of cAMP increases, the second messenger is bound by CAP and the cAMP-CAP complex binds to the DNA. Once bound, it is able to stimulate the transcription of the aforementioned genes. DNA bound by the CAP-cAMP complex is bent by ~90 degrees. This DNA bend, coupled with a protein-protein interaction between CAP and RNA polymerase is thought to be the mechanism by which CAP regluates transcription initiation on the chromosome.

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Rina8888 [55]

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Uracil

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3 years ago
5(a+4)-6a+1=12 plz help its due today
irga5000 [103]

Answer:

a = 9

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5(a + 4) - 6a + 1 = 12

5a + 20 - 6a + 1 = 12

5a - 6a + 20 + 1 = 12

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     -21      -21

--------------------------------

-1a = -9

/-1     /-1

---------------------------------

a = 9

3 0
3 years ago
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Hope this helps!

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