Which of the following statements is true of the structure of a TcR complex in a T cell?
A) It consists of four polypeptide chains.
B) It has two amino-terminal C domains and two carboxy-terminal V domains.
C) It has intrachain disulfide bonds to stabilize the extracellular domains.
D) It is anchored to the cell membrane by a hydrophilic transmembrane segment.

Question

Quizplus · Accepted Answer

The TcR complex in a T cell consists of two polypeptide chains, alpha and beta, each having an amino-terminal constant (C) domain and a carboxy-terminal variable (V) domain. The extracellular domains of the alpha and beta chains are stabilized by intrachain disulfide bonds. The entire TcR complex is anchored to the cell membrane by a hydrophobic transmembrane segment in the CD3 complex, which consists of four polypeptide chains.

Which of the Following Statements Is True of the Structure