Data Item _pdbx_investigation_descript.entity_id
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General 
- Item name
- _pdbx_investigation_descript.entity_id
- Category name
- pdbx_investigation_descript
- Attribute name
- entity_id
- Required in PDB entries
- yes
- Used in current PDB entries
- No
Item Description
This data item is a pointer to _pdbx_investigation_entity.entity_id in the PDBX_INVESTIGATION_ENTITY category.
This identifer will therefore provide reference to a singular sample source organism.
Data Type 
- Data type code
- int
- Data type detail
- Signed integers
- Primitive data type code
- numb
- Regular expression
- [+-]?[0-9]+
