PDBx/mmCIF
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Original mmCIF
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Data Item
_struct_biol_keywords.text
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General
Item name
_struct_biol_keywords.text
Category name
struct_biol_keywords
Attribute name
text
Required in PDB entries
yes
Used in current PDB entries
Yes, in about 0.002 % of entries
Item Description
Keywords describing this biological entity.
Item Examples
5
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Item Example1
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antibody
Item Example2
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antigen
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enzyme
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cytokine
Item Example5
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tRNA
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|^-]*