Analysis of T cell clonality among the 86 TB patients revealed that a particular Vα and Vβ TCR type prevailed, that is, Vα7 (43.02%), Vα9 (48.84%), Vα17 (50%), Vα32 (41.86%), Vβ19 (86.5%) and Vβ24 (62.79%) showed preferred usage more frequently than other families (Figure 4). The gene discussed is COX5A; the disease is tuberculosis.