| P22887 | n/a | 1b99 | POP | B | 260 | e1b99B1 | Alpha-beta plaits | Nucleoside diphosphate kinases | Nucleoside diphosphate kinases | NDK |
| P22887 | n/a | 1b99 | POP | C | 360 | e1b99C1 | Alpha-beta plaits | Nucleoside diphosphate kinases | Nucleoside diphosphate kinases | NDK |
| P22887 | n/a | 1b99 | POP | D | 460 | e1b99D1 | Alpha-beta plaits | Nucleoside diphosphate kinases | Nucleoside diphosphate kinases | NDK |
| P22887 | n/a | 1b99 | POP | E | 560 | e1b99E1 | Alpha-beta plaits | Nucleoside diphosphate kinases | Nucleoside diphosphate kinases | NDK |
| P22887 | n/a | 1b99 | POP | F | 660 | e1b99F1 | Alpha-beta plaits | Nucleoside diphosphate kinases | Nucleoside diphosphate kinases | NDK |