Data Item _database_2.database_id
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General 
- Item name
- _database_2.database_id
- Category name
- database_2
- Attribute name
- database_id
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 100.0 % of entries
Item Description
An abbreviation that identifies the database.
Data Type 
- Data type code
- ucode
- Data type detail
- code item types/single words (case insensitive) ...
- Primitive data type code
- uchar
- Regular expression
- [][_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| BMRB | Biological Magnetic Reference Data Bank |
| CAS | Chemical Abstracts |
| CSD | Cambridge Structural Database (organic and metal-organic compounds) |
| EBI | European Bioinformatics Institute |
| EMDB | Electron Microscopy Data Bank |
| ICSD | Inorganic Crystal Structure Database |
| MDF | Metals Data File (metal structures) |
| NBS | NBS (NIST) Crystal Data Database (lattice parameters) |
| NDB | Nucleic Acid Database |
| PDB | Protein Data Bank |
| PDBE | Protein Data Bank Europe |
| PDB_ACC | Protein Data Bank Versioned Accession |
| Powder Diffraction File (JCPDS/ICDD) | |
| RCSB | Research Collaboratory for Structural Bioinformatics |
| WWPDB | Worldwide Protein Data Bank |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| BMRB | Biological Magnetic Reference Data Bank |
| CAS | Chemical Abstracts |
| CSD | Cambridge Structural Database (organic and metal-organic compounds) |
| EBI | European Bioinformatics Institute |
| EMDB | Electron Microscopy Data Bank |
| ICSD | Inorganic Crystal Structure Database |
| MDF | Metals Data File (metal structures) |
| NBS | NBS (NIST) Crystal Data Database (lattice parameters) |
| NDB | Nucleic Acid Database |
| PDB | Protein Data Bank |
| PDBE | Protein Data Bank Europe |
| PDB_ACC | Protein Data Bank Versioned Accession |
| Powder Diffraction File (JCPDS/ICDD) | |
| RCSB | Research Collaboratory for Structural Bioinformatics |
| WWPDB | Worldwide Protein Data Bank |
Child Data Items 
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _database.code_CAS | replaces |
| _database.code_CSD | replaces |
| _database.code_ICSD | replaces |
| _database.code_MDF | replaces |
| _database.code_NBS | replaces |
| _database.code_PDF | replaces |