XmlmmCIF equivalent: struct_ref_seq Data items in the STRUCT_REF_SEQ category provide a mechanism for indicating and annotating a region (or regions) of alignment between the sequence of an entity or biological unit described in the data block and the sequence in the referenced database entry. XmlmmCIF equivalent: struct_ref_seq/db_align_beg The sequence position at which the alignment begins in the referenced database entry. XmlmmCIF equivalent: struct_ref_seq/db_align_end The sequence position at which the alignment ends in the referenced database entry. XmlmmCIF equivalent: struct_ref_seq/details A description of special aspects of the sequence alignment. XmlmmCIF equivalent: struct_ref_seq/pdbx_PDB_id_code The PDB code of the structure. XmlmmCIF equivalent: struct_ref_seq/pdbx_auth_seq_align_beg Initial position in the PDB sequence segment. XmlmmCIF equivalent: struct_ref_seq/pdbx_auth_seq_align_end Ending position in the PDB sequence segment XmlmmCIF equivalent: struct_ref_seq/pdbx_db_accession Accession code of the reference database. XmlmmCIF equivalent: struct_ref_seq/pdbx_db_align_beg_ins_code Initial insertion code of the sequence segment of the reference database. XmlmmCIF equivalent: struct_ref_seq/pdbx_db_align_end_ins_code Ending insertion code of the sequence segment of the reference database. XmlmmCIF equivalent: struct_ref_seq/pdbx_seq_align_beg_ins_code Initial insertion code of the PDB sequence segment. XmlmmCIF equivalent: struct_ref_seq/pdbx_seq_align_end_ins_code Ending insertion code of the sequence segment XmlmmCIF equivalent: struct_ref_seq/pdbx_strand_id The PDB strand/chain ID . XmlmmCIF equivalent: struct_ref_seq/ref_id This data item is a pointer to _struct_ref.id in the STRUCT_REF category. XmlmmCIF equivalent: struct_ref_seq/seq_align_beg The sequence position at which the alignment begins in the entity or biological unit described in the data block. This data item is a pointer to _entity_poly_seq.num in the ENTITY_POLY_SEQ category. XmlmmCIF equivalent: struct_ref_seq/seq_align_end The sequence position at which the alignment begins in the entity or biological unit described in the data block. This data item is a pointer to _entity_poly_seq.num in the ENTITY_POLY_SEQ category. XmlmmCIF equivalent: struct_ref_seq/align_id The value of _struct_ref_seq.align_id must uniquely identify a record in the STRUCT_REF_SEQ list. Note that this item need not be a number; it can be any unique identifier.