Data Item _pdbx_validate_polymer_linkage.auth_seq_id_1
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General 
- Item name
- _pdbx_validate_polymer_linkage.auth_seq_id_1
- Category name
- pdbx_validate_polymer_linkage
- Attribute name
- auth_seq_id_1
- Required in PDB entries
- yes
- Used in current PDB entries
- Yes, in about 2.5 % of entries
Item Description
Part of the identifier of the first of the two atom sites that
define the linkage.
This data item is a pointer to _atom_site.auth_seq_id in the
ATOM_SITE category.
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*|+-]*
