Data Item _em_map.contrast_convention
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General 
- Item name
- _em_map.contrast_convention
- Category name
- em_map
- Attribute name
- contrast_convention
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
The contrast convention used for the map
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 | protein negative |
| P | protein positive |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| N | protein negative |
| P | protein positive |