| Subdomain | Motif | Function | Found in 142R/B1R |
|---|---|---|---|
| I | Gly-X-Gly-X-Gly | Nucleotide Binding Phosphotransfer and Proton |
Yes |
| II | Lys72 | Transfer | Yes |
| III | Glu91 | ATP Binding | No |
| VI | Val157 Asp-Leu-Lys-Pro-Glu- Asn Asp184, Phe185 |
ATP Binding ATP Binding |
No Yes |
| VII | Gly186 | ATP Binding | Yes |
| VIII | Ala-Pro-Glu | Catalytic Domain Indicator | Yes |
| IX | Asp220, Gly225 | ATP Binding | Yes |
| XI | Arg280 | ATP Binding | No |