Data Item _chem_comp_atom.pdbx_backbone_atom_flag
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General 
- Item name
- _chem_comp_atom.pdbx_backbone_atom_flag
- Category name
- chem_comp_atom
- Attribute name
- pdbx_backbone_atom_flag
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
A flag indicating the backbone atoms in polypeptide units.
Data Type 
- Data type code
- ucode
- Data type detail
- code item types/single words (case insensitive) ...
- Primitive data type code
- uchar
- Regular expression
- [][_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| N | No - not part of the polypeptide backbone |
| Y | Yes - a part of the polypeptide backbone |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| N | No - not part of the polypeptide backbone |
| Y | Yes - a part of the polypeptide backbone |