In reference to the interaction between T-cell receptors and their corresponding ligands, which of the following statements is correct?
a. The organization of the T-cell receptor antigen-binding site is distinct from the antigen-binding site of immunoglobulins.
b. The orientation between T-cell receptors and MHC class I molecules is different from that of MHC class II molecules.
c. The CDR3 loops of the T-cell receptor ? and ? chains form the periphery of the binding site making contact with the ? helices of the MHC molecule.
d. The most variable part of the T-cell receptor is composed of the CD3 loops of both the ? and ? chains.
e. All of the above statements are correct.
D
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Hatha yoga is practiced for its own rewards
Indicate whether the statement is true or false