| ID | Description | N° of binding sites | Bound to chains |
|---|---|---|---|
| 2 | [(2~{r} + 3~{r} + 4~{r} + 5~{r})-5-(2-azanyl-7-methyl-6-oxidanylidene-1~{h}-purin-7-ium-9-yl)-4-methoxy-3-oxidanyl-oxolan-2-yl]methyl [phosphonooxy(selanyl)phosphoryl] hydrogen phosphate | 4 (4 molecules) | A, B, C, D |