| P43490 | n/a | 5u2n | 7TA | A | 504 | e5u2nA3 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | NAPRTase |
| P43490 | n/a | 5u2n | 7TA | A | 504 | e5u2nB2 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | Nicotinate/Quinolinate PRTase N-terminal domain-like | NAMPT_N |
| P43490 | n/a | 5u2n | 7TA | B | 504 | e5u2nA1 | alpha/beta-Hammerhead/Barrel-sandwich hybrid | alpha/beta-Hammerhead/Barrel-sandwich hybrid | Nicotinate/Quinolinate PRTase N-terminal domain-like | NAPRTase,NAMPT_N |
| P43490 | n/a | 5u2n | 7TA | B | 504 | e5u2nA3 | TIM beta/alpha-barrel | TIM barrels | TIM barrels | NAPRTase |
| P43490 | n/a | 5u2n | 7TA | B | 504 | e5u2nB1 | TIM beta/alpha-barrel | Nicotinate/Quinolinate PRTase C-terminal domain-like | Nicotinate/Quinolinate PRTase C-terminal domain-like | NAPRTase |