Table 3.

Repertoire of functional TRA/TRD gene segments in the bovine (UMD3.1), murine and human genomes

	Bovine (UMD3.1)	Human	Murine
TRAV/TRDV	215 (38)	48* (37)	87* (23)
TRAJ	52	50	38
TRDD	5	3	2
TRDJ	3	4	2

*For human and murine TRAV/TRDV repertoires we represent the maximum number of potential functional genes (i.e. including TRAV/TRDV gene segments for which both functional and non-functional alleles exist as functional). The numbers in parentheses show the number of TRAV/TRDV subgroups that include functional members.