General  
 
- Item name
- _em_entity_assembly.number_of_copies
- Category name
- em_entity_assembly
- Attribute name
- number_of_copies
- Required in PDB entries
- no
- Used in current PDB entries
- No
 
 
 
 
Item Description  
 
 
 
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]+