Protein Data Bank structures released per year, by method
Number of experimentally determined 3D structures of proteins, DNA, RNA and their complexes released by the Protein Data Bank each year since 1976, split by experimental method (X-ray crystallography, cryo-electron microscopy, NMR and others). One row per year.
Columns
Stable keys — use them in the API, SQL and code
| Key | Name | Type | Description |
|---|---|---|---|
| year | Year | year | — |
| total | Structures released | integer | Experimentally determined entries first released this year. |
| x_ray | X-ray | integer | X-ray diffraction (crystallography). |
| cryo_em | Cryo-EM | integer | Electron microscopy (cryo-EM). |
| nmr | NMR | integer | Solution and solid-state NMR. |
| electron_crystallography | Electron crystallography | integer | — |
| neutron | Neutron diffraction | integer | — |
| other | Other methods | integer | — |
| cryo_em_share_pct | Cryo-EM share | number · % | Cryo-EM entries as a percentage of all entries released that year. |
| cumulative_total | Cumulative total | integer | Running total of released entries up to and including this year (current archive contents). |
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