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What is Catabolite Activator Protein (CAP) in Microbiology? PDF | Download eBooks

Learn Catabolite Activator Protein (CAP) definition in microbiology with explanation to study “What is Catabolite Activator Protein (CAP)”. Study catabolite activator protein (cap) explanation with microbiology terms to review microbiology course for online degree programs.

Catabolite Activator Protein (CAP) Definition

  • A protein that regulates the expression of genes encoding catabolite repressible enzymes; also called cyclic AMP receptor protein (CRP).

    Prescott's Microbiology 9th Edition by Joanne Willey, Linda Sherwood, Christopher J. Woolverton



Catabolite Activator Protein (CAP) Explanation

Catabolite activator proteins are trans-acting transcriptional activators, which are present in the form of homodimers in solutions. CAP's each subunit is made of a DNA-binding domain at the C-terminus and a ligand-binding domain at N-terminus. Two molecules of cAMP bind dimeric CAP with negative cooperativity.

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