develops from develops from DN2 thymocyte DN2 cell TN2 thymocyte DN2 alpha-beta immature T-cell DN2 alpha-beta immature T lymphocyte DN2 immature T cell preT.DN2.Th double negative 2 A thymocyte that has the phenotype CD4-negative, CD8-negative, CD44-positive, and CD25-positive. DN2 alpha-beta immature T-lymphocyte Note that this type of thymocyte is at the earliest stage of T cell receptor rearrangement of the beta, gamma, and delta T cell receptor chains. Also, there is growing evidence that molecular markers characterizing double negative thymocytes are different across species, especially in mouse versus human thymus. If in doubt, please consider using CL:0002489 'double negative thymocyte'. TN2 cell DN1 thymic pro-T cell double negative thymocyte