Data Item _em_entity_assembly.parent_id
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General 
- Item name
- _em_entity_assembly.parent_id
- Category name
- em_entity_assembly
- Attribute name
- parent_id
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 9.3 % of entries
Item Description
The parent of this assembly.
This data item is an internal category pointer to _em_entity_assembly.id.
By convention, the full assembly (top of hierarchy) is assigned parent id 0 (zero).
Data Type 
- Data type code
- int
- Data type detail
- int item types are the subset of numbers that are the negative or positive integers.
- Primitive data type code
- numb
- Regular expression
- [+-]?[0-9]+
Allowed Boundary Conditions
| Minimum Value | Maximum Value |
|---|---|
| 0 | +∞ |