Data Item _atom_site.auth_seq_id


Item name
Category name
Attribute name
Required in PDB entries
Used in current PDB entries
Yes, in about 100.0 % of entries

Item Description

An alternative identifier for _atom_site.label_seq_id that may be provided by an author in order to match the identification used in the publication that describes the structure. Note that this is not necessarily a number, that the values do not have to be positive, and that the value does not have to correspond to the value of _atom_site.label_seq_id. The value of _atom_site.label_seq_id is required to be a sequential list of positive integers. The author may assign values to _atom_site.auth_seq_id in any desired way. For instance, the values may be used to relate this structure to a numbering scheme in a homologous structure, including sequence gaps or insertion codes. Alternatively, a scheme may be used for a truncated polymer that maintains the numbering scheme of the full length polymer. In all cases, the scheme used here must match the scheme used in the publication that describes the structure.

Data Type

Data type code
Data type detail
code item types/single words ...
Primitive data type code
Regular expression

Child Data Items


Subcategory Name Subcategory Description
mm_atom_site_auth_label The collection of asym id, atom id, comp id and seq id
components of an author's alternative specification for
a macromolecular atom site.