Data Item _rcsb_val_angle.auth_atom_id_2
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General 
- Item name
- _rcsb_val_angle.auth_atom_id_2
- Category name
- rcsb_val_angle
- Attribute name
- auth_atom_id_2
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
Identifier of the second of the three atom sites
that define the angle.
This data item is a pointer to _atom_site.auth_atom_id in the
ATOM_SITE category.
Data Type 
- Data type code
- atcode
- Data type detail
- Character data type for atom names ...
- Primitive data type code
- char
- Regular expression
- [][ _(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
