Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A, B (A, B) | Xylose isomerase | polymer | 387 | 43152.1 | 2 | UniProt (P24300) Pfam (PF01261) | Streptomyces rubiginosus | |
| 2 | C, K (A, B) | CALCIUM ION | non-polymer | 40.1 | 2 | Chemie (CA) | |||
| 3 | D, L (A, B) | MAGNESIUM ION | non-polymer | 24.3 | 2 | Chemie (MG) | |||
| 4 | E, F, M, N (A, B) | CHLORIDE ION | non-polymer | 35.5 | 4 | Chemie (CL) | |||
| 5 | G, H, O, P (A, B) | KRYPTON | non-polymer | 83.8 | 4 | Chemie (KR) | |||
| 6 | I, Q (A, B) | 2-AMINO-2-HYDROXYMETHYL-PROPANE-1,3-DIOL | non-polymer | 122.1 | 2 | Chemie (TRS) | |||
| 7 | J, R (A, B) | (4S)-2-METHYL-2,4-PENTANEDIOL | non-polymer | 118.2 | 2 | Chemie (MPD) | |||
| 8 | S, T (A, B) | water | water | 18.0 | 931 | Chemie (HOH) |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 2 |
| Total formula weight | 86304.2 | |
| Non-Polymers* | Number of molecules | 16 |
| Total formula weight | 1086.4 | |
| All* | Total formula weight | 87390.6 |
