Macromolecular dictionary (mmCIF) version 2.0.09

_refine_hist.cycle_id

Definition:

   The value of _refine_hist.cycle_id must uniquely identify a
   record in the REFINE_HIST list.

   Note that this item need not be a number; it can be any unique
   identifier.

Type: code

Mandatory item: yes

Category: refine_hist