Data Item _struct_keywords.text
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General 
- Item name
- _struct_keywords.text
- Category name
- struct_keywords
- Attribute name
- text
- Required in PDB entries
- no
- Required for PDB deposition
- yes
- Used in current PDB entries
- Yes, in about 100.0 % of entries
Item Description
Keywords describing this structure.
Additional Descriptive Information for Depositors
Provide the list of keywords that describe your entry (functional class, metabolic role, biological or chemical activity, structural classification, etc.). These will be used to categorize your submission (assign header, function of the small molecule, etc.), and to search the entry within the archive. The keywords should not include long phrases or sentences
Item Example1
serine protease
Item Example2
inhibited complex
Item Example3
high-resolution refinement
Additional Item Example for Depositors
Inhibitor, Complex, Isomerase...
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|^-]*