Data Item _struct_ref.pdbx_db_isoform
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General 
- Item name
- _struct_ref.pdbx_db_isoform
- Category name
- struct_ref
- Attribute name
- pdbx_db_isoform
- Required in PDB entries
- no
- Used in current PDB entries
- Yes, in about 1.5 % of entries
Item Description
Database code assigned by the reference database for a sequence isoform. An isoform sequence is an
alternative protein sequence that can be generated from the same gene by a single or by a combination of
biological events such as: alternative promoter usage, alternative splicing, alternative initiation
and ribosomal frameshifting.
Item Example
P29994-6
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*|+-]*