Data Item _struct_sheet_range.symmetry


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Used in currrent PDB entries

Item Description

Describes the symmetry operation that should be applied to the residues delimited by the start and end designators in order to generate the appropriate strand in this sheet.

Data Type

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Data type detail
symop item types take the form n_klm, where n refers to the symmetry operation that is applied to the coordinates in the ATOM_SITE category identified by _atom_site_label. It must match a number given in _symmetry_equiv_pos_site_id. k, l, and m refer to the translations that are subsequently applied to the symmetry transformed coordinates to generate the atom used. These translations (x,y,z) are related to (k,l,m) by k = 5 + x l = 5 + y m = 5 + z By adding 5 to the translations, the use of negative numbers is avoided.
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