The αβ receptors of T cells recognize specific peptide antigens based on their ________.1 pointlengthamino acid sequenceshape and surface R groupsbinding to specific MHC sub-types

Studies of the structure of the T-cell receptor indicate it has significant homologies to the _________ of immunoglobulins (antibodies), with the _______ peptides resembling the heavy chain.1 pointarms; α and γarms; β and δstem; α and γstem; β and δ

What must protein antigens be processed into and bound onto to be recognised by a T-Cell Receptor?

Compared to the MHC molecule on the left, the MHC molecule on the right (in the drawing above) will bind a ______ peptide that, if foreign, will cause a T cell to activate and _________. The protein on the left is made up of two peptides, each with two domains. One peptide has domains labeled alpha 1 and 2, the other beta 1 and 2. The protein on the right is made up of two peptides, one with three domains labeled alpha 1, 2 and 3 and the other a single domain labeled beta MG.

Which series shows the order by which an antigenic sequence of amino acids is brought in contact with a T-cell receptor by a major histocompatibility complex (MHC)?A.Full-length protein → MHC I → MHC II → T-cell receptorB.Full-length protein → MHC II → MHC I → T-cell receptorC.Full-length protein → free digested protein fragments → MHC II → T-cell receptorD.Full-length protein → free digested protein fragments → MHC I → free digested protein fragments → T-cell receptorSubmit

The T cell receptor (TCR):Select one alternative:Has enormous binding diversity created by gene segment rearrangement.Consists of 2 protein chains, each with variable and constant domains.Contains only one antigen-binding site.All of the above