Question

what is the definition of a protein - binding site?
choose one:
a. the portion of a protein that attaches to the cell membrane and tethers the protein as a peripheral membrane protein
b. the region of the cell where proteins are assembled based on information from the genetic code
c. any region on a proteins surface that interacts with another molecule through noncovalent bonding
d. a pocket on a protein where a small molecule can be covalently attached and thus modify the protein

Explanation:

A protein - binding site is a region on a protein's surface that interacts with another molecule. This interaction usually occurs through non - covalent bonding like hydrogen bonds, van der Waals forces, and ionic interactions. Option A describes membrane - attachment, B describes protein synthesis site, and D mentions covalent attachment which is not typical for binding sites.

Answer:

C. any region on a protein's surface that interacts with another molecule through noncovalent bonding