Data Item _entity_poly.pdbx_seq_one_letter_code_sample
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General 
- Item name
- _entity_poly.pdbx_seq_one_letter_code_sample
- Category name
- entity_poly
- Attribute name
- pdbx_seq_one_letter_code_sample
- Required in PDB entries
- no
- Used in currrent PDB entries
- No
Item Description
For cases in which the sample and model sequence differ this item contains
the sample chemical sequence expressed as string of one-letter amino acid codes.
Modified may be include as 'X' or with their 3-letter codes in parentheses.
Item Example
A for alanine or adenine B for ambiguous asparagine/aspartic-acid R for arginine N for asparagine D for aspartic-acid C for cysteine or cystine or cytosine Q for glutamine E for glutamic-acid Z for ambiguous glutamine/glutamic acid G for glycine or guanine H for histidine I for isoleucine L for leucine K for lysine M for methionine F for phenylalanine P for proline S for serine T for threonine or thymine W for tryptophan Y for tyrosine V for valine U for uracil O for water X for other
Data Type 
- Data type code
- text
- Data type detail
- text item types / multi-line text ...
- Primitive data type code
- char
- Regular expression
- [][ \n\t()_,.;:"&<>/\{}'`~!@#$%?+=*A-Za-z0-9|^-]*