Question

What are the properties of T cell receptor (TCR)?

1) It is a protein complex composed of alpha and beta chains.
2) It is responsible for recognizing antigens presented by major histocompatibility complex (MHC) molecules.
3) It plays a crucial role in the adaptive immune response.
4) It undergoes somatic recombination to generate a diverse repertoire of receptors.
5) All of the above

Answer 1

The properties of T cell receptor (TCR) include being a protein complex composed of alpha and beta chains, responsible for recognizing antigens presented by major histocompatibility complex (MHC) molecules, playing a crucial role in the adaptive immune response, and undergoing somatic recombination to generate a diverse repertoire of receptors.

Step-by-step explanation:

The properties of T cell receptor (TCR) are:

1. It is a protein complex composed of alpha and beta chains. The TCR consists of two polypeptide chains, known as alpha and beta chains, which span the cytoplasmic membrane of the T cell.
2. It is responsible for recognizing antigens presented by major histocompatibility complex (MHC) molecules. TCRs recognize processed foreign epitopes presented with MHC I or MHC II molecules.
3. It plays a crucial role in the adaptive immune response. T cell receptors are involved in the activation and recognition of antigens, which is a fundamental process in the adaptive immune response.
4. It undergoes somatic recombination to generate a diverse repertoire of receptors. TCR diversity is achieved by the mutation and recombination of genes that encode these receptors in stem cell precursors of T cells.