PDBx/mmCIF
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Current version (V5) PDBx/mmCIF
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Dictionary Definition Language V2
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IHMCIF
flrCIF
Previous PDBx/mmCIF V4
Original mmCIF
NMRIF/NMR-STAR
NMR Exchange Format (NEF)
SAS
NDB NTC
3DEM
Image mmCIF
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ModelCIF
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Data Item
_struct_keywords.text
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Supporting Data
General
Item name
_struct_keywords.text
Category name
struct_keywords
Attribute name
text
Required in PDB entries
no
Used in current PDB entries
Yes, in about 100.0 % of entries
Item Description
Keywords describing this structure.
Item Examples
3
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Item Example1
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serine protease
Item Example2
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inhibited complex
Item Example3
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high-resolution refinement
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|^-]*