Data Item _entity.type
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General 
- Item name
- _entity.type
- Category name
- entity
- Attribute name
- type
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 100.0 % of entries
Item Description
Entities are of two types polymer or non-polymer.
Item Example
polymer
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
- Default value
- polymer
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| aggregate | |
| non-polymer | Ligand, metal ion, or other non-polymeric molecule |
| polymer | A biological polymer (protein, peptide, nucleic acid, etc.) |
| solvent | |
| water |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| aggregate | |
| non-polymer | Ligand, metal ion, or other non-polymeric molecule |
| polymer | A biological polymer (protein, peptide, nucleic acid, etc.) |
| solvent | |
| water |