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serious [3.7K]
2 years ago
15

The main role of the ________ is to increase the binding ability of RNA polymerase to the lac operon promoter region.

Biology
1 answer:
Anna11 [10]2 years ago
4 0

Answer:

catabolite activator protein (CAP)

Explanation:

Catabolite activator protein (CAP) is a homodimeric transcriptional activator required for transcription initiation of catabolite-sensitive genes in <em>Escherichia coli</em>. CAP contains a ligand-binding domain at its N-terminus and a DNA-binding domain at its C-terminus. CAP activates transcription by binding at target DNA sites on promoter sequences, thereby enhancing the ability of the RNA polymerase to bind and initiate transcription. CAP binds cyclic AMP (cAMP) to increase CAP’s affinity to DNA and thus activates the transcription of genes for catabolism, such as the lactose (lac) operon genes (the lac operon is a set of genes that encode for enzymes taking part in lactose metabolism).

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3 years ago
51. how do the differences in amino acid sequences lead to different protein functions?
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DifferentDifferent amino acid produce different proteins based on the bonds formed between them .

<h3>How does the sequence of amino acids affect the functions of protein ? </h3>

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Amino acids are monomers of protein. So , different amino acids produce different proteins based on the bonds formed between them.

to learn more about Amino acid click here

brainly.com/question/14583479

#SPJ4

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