Data Item _item_type_conditions.code
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General 
- Item name
- _item_type_conditions.code
- Category name
- item_type_conditions
- Attribute name
- code
- Required in PDB entries
- yes
- Used in currrent PDB entries
- No
Item Description
Codes defining conditions on the _item_type.code specification.
'esd' permits a number string to contain an appended standard
deviation number enclosed within parentheses. E.g. 4.37(5)
'seq' permits data to be declared as a sequence of values
separated by a comma <,> or a colon <:>.
* The sequence v1,v2,v3,. signals that v1, v2, v3, etc.
are alternative values or the data item.
* The sequence v1:v2 signals that v1 and v2 are the boundary
values of a continuous range of values. This mechanism
was used to specify permitted ranges of an item in
previous DDL versions.
Combinations of alternate and range sequences are permitted.
Data Type 
- Data type code
- code
- Data type detail
- A single word
- Primitive data type code
- char
- Regular expression
- [^\t\n "]*
Controlled Vocabulary
| Allowed Value | Details |
|---|---|
| esd | numbers may have esd values appended within () |
| none | no extra conditions apply to this data item |
| seq | data may be declared as a comma or colon separated sequence |
Controlled Vocabulary at Deposition
| Allowed Value | Details |
|---|---|
| esd | numbers may have esd values appended within () |
| none | no extra conditions apply to this data item |
| seq | data may be declared as a comma or colon separated sequence |