Chains and Chain IDs: Difference between revisions
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Regardless of the chain IDs assigned by the authors of a structure model entry deposited in the wwPDB, the wwPDB assigns its own (usually distinct) chain IDs. These PDBx chain IDs are present only in the mmCIF files, not in the PDB format files. In mmCIF files, there is no single place that lists all author-assigned or all wwPDB-assigned chain IDs. | Regardless of the chain IDs assigned by the authors of a structure model entry deposited in the wwPDB, the wwPDB assigns its own (usually distinct) chain IDs. These PDBx chain IDs are present only in the mmCIF files, not in the PDB format files. In mmCIF files, there is no single place that lists all author-assigned or all wwPDB-assigned chain IDs. | ||
* Author-assigned chain IDs: | * <b>Author</b>-assigned chain IDs: | ||
** Protein & Nucleic Acids: _pdbx_poly_seq_scheme<b>.pdb_strand_id</b> | ** Protein & Nucleic Acids: _pdbx_poly_seq_scheme<b>.pdb_strand_id</b> | ||
** Carbohydrates: _pdbx_branch_scheme<b>.pdb_asym_id</b> (supercedes .auth_asym_id after [https://www.wwpdb.org/documentation/remediation 2020 remediation]) | ** Carbohydrates: _pdbx_branch_scheme<b>.pdb_asym_id</b> (supercedes .auth_asym_id after [https://www.wwpdb.org/documentation/remediation 2020 remediation]) | ||
** All else: _pdbx_nonpoly_scheme<b>.pdb_strand_id</b> | ** All else: _pdbx_nonpoly_scheme<b>.pdb_strand_id</b> | ||
* wwPDB-assigned chain IDs: | * <b>wwPDB</b>-assigned chain IDs: | ||
** Protein & Nucleic Acids: _pdbx_poly_seq_scheme<b>.asym_id</b> | ** Protein & Nucleic Acids: _pdbx_poly_seq_scheme<b>.asym_id</b> | ||
** Carbohydrates: _pdbx_branch_scheme<b>.asym_id</b> | ** Carbohydrates: _pdbx_branch_scheme<b>.asym_id</b> | ||
