The change in morphology and behavior of an alpha-beta T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific, leading to the initiation or perpetuation of an immune response.

The change in morphology and behavior of a mature or immature T cell resulting from exposure to a mitogen, cytokine, chemokine, cellular ligand, or an antigen for which it is specific, leading to the initiation or perpetuation of an immune response.

The process in which a precursor cell type acquires the specialized features of a CD8-positive, alpha-beta cytotoxic T cell.

The process in which a relatively unspecialized T cell acquires specialized features of a mature CD8-positive, alpha-beta T cell.

The process in which a precursor cell type acquires the specialized features of a CD8-positive, alpha-beta regulatory T cell.

The process in which a precursor cell type acquires the specialized features of a CD4-positive, gamma-delta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

The process in which a precursor cell type acquires the specialized features of a gamma-delta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

The process in which a precursor cell type acquires the specialized features of a CD8-positive, gamma-delta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

The process in which a relatively unspecialized hemopoietic cell acquires specialized features of a gamma-delta T cell. A gamma-delta T cell is a T cell that expresses a gamma-delta T cell receptor complex.

The process in which an antigenically naive gamma-delta T cell acquires the specialized features of an effector, regulatory, or memory T cell and contributes to an immune response. Effector T cells include cells which provide T cell help or exhibit cytotoxicity towards other cells.

The process in which an antigenically naive T cell acquires the specialized features of an effector, regulatory, or memory T cell as part of an immune response. Effector T cells include cells which provide T cell help or exhibit cytotoxicity towards other cells.

The process in which an antigenically naive CD8-positive, alpha-beta T cell acquires the specialized features of an effector, regulatory, or memory T cell as part of an immune response. Effector T cells include cells which provide T cell help or exhibit cytotoxicity towards other cells.

The process in which an antigenically naive alpha-beta T cell acquires the specialized features of an effector, regulatory, or memory T cell during an immune response. Effector T cells include cells which provide T cell help or exhibit cytotoxicity towards other cells.

The process in which a precursor cell type acquires the specialized features of a CD4-positive, alpha-beta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

The process in which a precursor cell type acquires the specialized features of an alpha-beta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

The process in which a precursor cell type acquires the specialized features of a CD8-positive, alpha-beta intraepithelial T cell. Intraepithelial T cells are found among epithelial cells in mucosal areas and have distinct phenotypes and developmental pathways.

OBSOLETE. Ligand dependent interaction with the thyroid hormone receptor.

OBSOLETE. Catalysis of the release of the N-terminal pyroglutamyl group from pGlu-His-Xaa tripeptides and pGlu-His-Xaa-Gly tetrapeptides.

Catalysis of the release of the N-terminal pyroglutamyl group from a peptide or protein.