Data Item _pdbx_nmr_chem_shift_ref.external_ref_sample_geometry
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General 
- Item name
- _pdbx_nmr_chem_shift_ref.external_ref_sample_geometry
- Category name
- pdbx_nmr_chem_shift_ref
- Attribute name
- external_ref_sample_geometry
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
The geometrical shape of the external reference sample.
Item Example
spherical
Data Type 
- Data type code
- line
- Data type detail
- char item types / multi-word items ...
- Primitive data type code
- char
- Regular expression
- [][ \t_(),.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| cylindrical | |
| other | |
| spherical |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| cylindrical | |
| other | |
| spherical |