Data Item _atom.pdb_one_letter_code
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General 
- Item name
- _atom.pdb_one_letter_code
- Category name
- atom
- Attribute name
- pdb_one_letter_code
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
One-letter code used by the PDB for amino acids and nucleic acids.
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*|+-]*