Data Item _ndb_struct_ntc_step_parameters.tor_chi_2
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General 
- Item name
- _ndb_struct_ntc_step_parameters.tor_chi_2
- Category name
- ndb_struct_ntc_step_parameters
- Attribute name
- tor_chi_2
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
The chi_2 torsion angle defined by O4'(2)-C1'(2)-N1/9(2)-C2/4(2) atoms.
Data Type 
- Data type code
- float
- Data type detail
- float item types are the subset of numbers that are the floating numbers.
- Primitive data type code
- numb
- Regular expression
- -?(([0-9]+)[.]?|([0-9]*[.][0-9]+))([(][0-9]+[)])?([eE][+-]?[0-9]+)?