Data Item _pdbx_nmr_exptl_sample.concentration_units
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General 
- Item name
- _pdbx_nmr_exptl_sample.concentration_units
- Category name
- pdbx_nmr_exptl_sample
- Attribute name
- concentration_units
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 3.6 % of entries
Item Description
The concentration units of the component.
Item Example1
mg/mL for mg per milliliter
Item Example2
mM for millimolar
Item Example3
% for percent by volume
Data Type 
- Data type code
- code
- Data type detail
- code item types/single words ...
- Primitive data type code
- char
- Regular expression
- [][_,.;:"&<>()/\{}'`~!@#$%A-Za-z0-9*|+-]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| % | percent by volume |
| M | molar |
| g/L | grams per liter |
| mM | millimolar |
| mg/mL | mg per milliliter |
| uM | micromolar |
| v/v | volume percent |
| w/v | mass-volume percent |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| % | percent by volume |
| M | molar |
| g/L | grams per liter |
| mM | millimolar |
| mg/mL | mg per milliliter |
| uM | micromolar |
| v/v | volume percent |
| w/v | mass-volume percent |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _rcsb_nmr_exptl_sample.concentration_units | cif_rcsb.dic | 1.1 |