Which of the following statements regarding protein domains is true?
A) Each protein has one unique domain.
B) Multiple domains require multiple subunits and a quaternary structure.
C) A domain can be composed of smaller structural units called motifs.
D) A domain is a region absent of -helices and -sheets.

Question

Which of the following statements regarding protein domains is true?
A) Each protein has one unique domain. 
B) Multiple domains require multiple subunits and a quaternary structure. 
C) A domain can be composed of smaller structural units called motifs. 
D) A domain is a region absent of -helices and -sheets.

Quizplus · Accepted Answer

A domain can be composed of smaller structural units called motifs. Domains are functional units within a protein that can fold independently and have a specific function or binding site. Domains can contain multiple motifs, which are smaller structural units that form specific functional elements within the domain. A protein can have multiple domains, each with its own function or binding site.

Which of the Following Statements Regarding Protein Domains Is True