Data Item _phasing_MIR_der.number_of_sites
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General 
- Item name
- _phasing_MIR_der.number_of_sites
- Category name
- phasing_MIR_der
- Attribute name
- number_of_sites
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 0.001 % of entries
Item Description
The number of heavy-atom sites in this derivative.
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]+