7Y2X
Ni-Carbonic Anhydrase II complexed with 3NPA after UV at 200 K
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords | 
| 1 | A (A)  | Carbonic anhydrase 2 | polymer | 260 | 29289.1 | 1 | UniProt (P00918) Pfam (PF00194)  | Homo sapiens (human) | Carbonate dehydratase II,Carbonic anhydrase C,CAC,Carbonic anhydrase II,CA-II | 
| 2 | B, C (A)  | NICKEL (II) ION | non-polymer | 58.7 | 2 | Chemie (NI) | |||
| 3 | D (A)  | 2-(3-NITROPHENYL)ACETIC ACID | non-polymer | 181.1 | 1 | Chemie (MNP) | |||
| 4 | E (A)  | water | water | 18.0 | 242 | Chemie (HOH) | 
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 | 
| Total formula weight | 29289.1 | |
| Non-Polymers* | Number of molecules | 3 | 
| Total formula weight | 298.5 | |
| All* | Total formula weight | 29587.6 | 






