The HKL-2000 suite is a new program package based on the extended versions of Denzo, Xdisplayf and Scalepack. It consists of several more subprograms coordinated by the Graphical Command Center. The most important new elements are strategy and simulation, 3-D processing, mosaicity refinement during processing, variable spot size, easy change of the space group, and report generation, etc. The Graphical Command Center coordinates all steps of experiment and enables performing an interactive experiment with on-line data analysis, where results are automatically updated when new data are collected. The experimenter can adjust the data collection strategy to assign the desired data completeness. A proper data collection strategy can help avoid later problems in data reduction and structure solution.

 The software is driven by the Graphical User Interface (GUI), which greatly improves convenience of working with various data sets. The emphasis of the HKL-2000 manual is on how to run Denzo, Xdisplayf and Scalpack from the Graphical User Interface. The figures in this manual are for the 0.98.696 version of the HKL-2000 program. Since the program continues to undergo constant revision and development, however, it cannot be promised that the version of the HKL-2000 package you are using is the same one described here.

To find more about the newest features of Denzo and Scalepack please read the article:

Z. Otwinowski and. W. Minor "Denzo & Scalepack". International Tables for Crystallography Volume F: Macromolecular Crystallography, p. 226-235, 2001, M. G. Rossmann, Kluwer Academic Publishers (Dordrecht/Boston/London).

Question about the program described here should be directed to Zbyszek Otwinowski or Wladek Minor at the addresses below, with CC: to HKL Research:

HKL WWW homepage:

HKL e-mail :



Zbyszek Otwinowski:

Wladek Minor:

To reference the HKL-2000 package for publication, please use the following citation:

Z. Otwinowski and W. Minor, "Processing of X-ray Diffraction Data Collected in Oscillation Mode", Methods in Enzymology, Volume 276: Macromolecular Crystallography, part A, p.307‑326, 1997, C. W. Carter, Jr. & R. M. Sweet, Eds., Academic Press (New York).

Denzo®, HKL® and HKL-2000® are registered trademarks of HKL Research, Inc. 


Table of Contents


Table of Contents


How to start the HKL2000 program?