International
Tables for
Crystallography
Volume G
Definition and exchange of crystallographic data
Edited by S. R. Hall and B. McMahon

International Tables for Crystallography (2006). Vol. G. ch. 2.6, pp. 67-68

Section 2.6.6.1.15. ITEM_TYPE

J. D. Westbrook,a* H. M. Bermana and S. R. Hallb

a Protein Data Bank, Research Collaboratory for Structural Bioinformatics, Rutgers, The State University of New Jersey, Department of Chemistry and Chemical Biology, 610 Taylor Road, Piscataway, NJ 08854-8087, USA, and bSchool of Biomedical and Chemical Sciences, University of Western Australia, Crawley, Perth, WA 6009, Australia
Correspondence e-mail:  jwest@rcsb.rutgers.edu

2.6.6.1.15. ITEM_TYPE

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The ITEM_TYPE category holds a code that identifies the data type of each data item. The data item _item_type.code is a child of the item _item_type_list.code. Data-type definitions are actually made in the ITEM_TYPE_LIST parent category. The item _item_type.code provides an indirect reference into the list of data-type definitions in category ITEM_TYPE_LIST. This indirect reference is provided as a convenience to avoid the redeclaration of the full data-type specification for each data item. The key item for this category is _item_type.name, which is defined in the parent category ITEM. Only one data type may be specified for a data item.








































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