Source assertion
PDBe/SIFTS maps PDB 3KKX to UniProt P00918 with chain-level identity and coverage retained.
Experimental structure
Neutron structure of human carbonic anhydrase II
- PDB ID
3KKX- Experimental method
- Neutron Diffraction
- Resolution
- %!f(*float64=0x24b06affe4c0) Å
- SIFTS identifier
CAH2_HUMAN- Deposited
- 20091106
- Released / revised
- 20100112 / 20230906
Chain-level mapping
| Entity | Chain | Structural asym | Identity | Coverage | UniProt range |
|---|---|---|---|---|---|
| 1 | A | A | 100.0% | 100.0% | 1–260 |
Experimental constructs
| Entity | Chains / asym IDs | Molecule | Length | Mutation flag | Preparation |
|---|---|---|---|---|---|
| 1 | A / A | Carbonic anhydrase 2polypeptide(L) | 260 residues | not reported by the source | Genetically manipulated |
Reading this structure
This is an experimentally determined structure, not a predicted model. A co-crystallised ligand, if any, does not by itself show binding affinity. The structure says nothing about kinetics, pathway rate or metabolic flux.
Snapshot provenance
Each row is a source snapshot this record was built from: when it was retrieved, its path and SHA-256 digest, and the exact request. The snapshot files stay with the build and are not served here. These rows document this record; they are not general citations.
| Retrieved | Snapshot | SHA-256 | Upstream request |
|---|---|---|---|
| 2026-07-14T09:21:31Z | raw/uniprot/entries/P00918.json | ed44906dd1b976f4c8b0399e9e3a7a4af09b673c035a201e218a4880821c1179 | Open exact source |
| 2026-07-14T09:21:40Z | raw/pdbe/mappings/3kkx.json | 52bc292ffe379487490d3915b8d3c54729f184979f2860d7a67188610e99f197 | Open exact source |
| 2026-07-14T09:22:14Z | raw/pdbe/summary/chunk-02.json | 79ac3fb4e9e30c8c858b4d8ed8bbe6f85e8e0d0e3630627a999691f40a3d330d | Open exact source |
| 2026-07-14T09:22:14Z | raw/pdbe/experiment/chunk-02.json | e42f681713cd9cdce851cc48738b3c6e0f0c075d0006a640c484bcab84561898 | Open exact source |
| 2026-07-14T09:22:15Z | raw/pdbe/molecules/chunk-02.json | 27833f4d4cb9a9bfcb110f6e551fe2a5ccef01ccea4dda947132af6c51bd66e6 | Open exact source |