Macromolecular dictionary (mmCIF) version 2.0.09
A code to indicate whether this operator describes a relationship between coordinates all of which are given in the data block (in which case the value of code is 'given'), or whether the operator is used to generate new coordinates from those that are given in the data block (in which case the value of code is 'generate').
Mandatory item: no
The data value must be one of the following:
|operator relates coordinates given in the data block|
|operator generates new coordinates from those given in the data block|