Data Item _pdbx_nmr_exptl_sample_conditions.pH_units
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General 
- Item name
- _pdbx_nmr_exptl_sample_conditions.pH_units
- Category name
- pdbx_nmr_exptl_sample_conditions
- Attribute name
- pH_units
- Required in PDB entries
- no
- Required for PDB deposition
- yes
- Used in current PDB entries
- Yes, in about 1.2 % of entries
Item Description
Units for the value of the sample condition pH.
Additional Descriptive Information for Depositors
Units for the value of the sample condition pH.
Item Example
pH
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 |
|---|---|
| Not defined | |
| pD | |
| pH | |
| pH* |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| Not defined | |
| pD | |
| pH | |
| pH* |