Crystallographic Information Framework

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Index

Macromolecular dictionary (mmCIF) version 2.0.09

_cell.Z_PDB

Name:
'_cell.Z_PDB'

Definition:

   The number of the polymeric chains in a unit cell. In the case
   of heteropolymers, Z is the number of occurrences of the most
   populous chain.

   This data item is provided for compatibility with the original
   Protein Data Bank format, and only for that purpose.

Type: int

Mandatory item: no


The permitted range is [1, infinity)

Category: cell


International Tables for Crystallography

Volume G: Definition and exchange of crystallographic data

First online edition (2006)

Edited by S. R. Hall and B. McMahon

An essential guide and reference to CIF for programmers, data managers handling crystal-structure information and practising crystallographers.