General 
- Item name
- _rcsb_sequence_annotation.ncbi_taxid
- Category name
- rcsb_sequence_annotation
- Attribute name
- ncbi_taxid
- Required in PDB entries
- yes
- Used in current PDB entries
- No
Item Description 
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*|+-]*