Data Item _entity.pdbx_ec
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General 
- Item name
- _entity.pdbx_ec
- Category name
- entity
- Attribute name
- pdbx_ec
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 47.3 % of entries
Item Description
Enzyme Commission (EC) number(s)
Item Example
2.7.7.7
Data Type 
- Data type code
- ec-type
- Data type detail
- Approximate format of Enzyme Commission EC number. 1.2.3.4 with optional parts.
- Primitive data type code
- char
- Regular expression
- ([1-6]((.[1-9][0-9]?)|(.-))((.[1-9][0-9]?)|(.-))((.[1-9][0-9]?[0-9]?)|(.-)))(([ ]*,[ ]*)([1-6]((.[1-9][0-9]?)|(.-))((.[1-9][0-9]?)|(.-))((.[1-9][0-9]?[0-9]?)|(.-))))*
Related Items 
| Related Item Name | Relation Type |
|---|---|
| _entity_keywords.pdbx_ec | replaces |
Aliases
| Alias Item Name | Dictionary Name | Dictionary Version |
|---|---|---|
| _entity_keywords.ndb_ec | cif_rcsb.dic | 1.1 |