| Q9H3S4 | n/a | 3s4y | TPP | A | 1301 | e3s4yA2 | Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, catalytic domain | TPK_catalytic |
| Q9H3S4 | n/a | 3s4y | TPP | A | 1301 | e3s4yB1 | jelly-roll | Thiamin pyrophosphokinase, substrate-binding domain | Thiamin pyrophosphokinase, substrate-binding domain | TPK_B1_binding |
| Q9H3S4 | n/a | 3s4y | TPP | B | 1301 | e3s4yA1 | jelly-roll | Thiamin pyrophosphokinase, substrate-binding domain | Thiamin pyrophosphokinase, substrate-binding domain | TPK_B1_binding |
| Q9H3S4 | n/a | 3s4y | TPP | B | 1301 | e3s4yB2 | Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, catalytic domain | Thiamin pyrophosphokinase, catalytic domain | TPK_catalytic |