HKL-package: Denzo, Scalepack and XDisplayF

Protein crystallography Programs for crystallography X-ray detectors
Basic tutorials:
Protein Peptide

HKL-package general description

HKL-package is a set of programs Denzo, XDisplayF and Scalepack designed for monocrystal X-ray diffraction data analysis. Most crystallographic structures deposited to RCSB Protein Data Bank (nearly 80%) solved with using the data obtained with Denzo/Scalepack programs.

Key features of HKL-package

• Automatic indexing
• Positional refinement based on partially recorded reflections for high accuracy and computational stability
• Flexible, weighted, profile fitting algorithm for accurate measuring of the intensity of the diffraction spots
• Visualization of the data in the original form as well as the progress of data reduction
• Scaling and merging of different data sets and global refinement of crystal parameters

Hardware and OS requirement for HKL-package

This program suite distributed as already compiled executable files and supported operational systems are:
• Linux (RedHat 9.0, RedHat Enterprise, Fedora Core, Altix SGI Enterprise)
• SGI Irix 6.5
• OSF 3.2, but this OS is not supported now and the last available version of HKL/HKL2000 for OSF is 1.97.9 / 0.97.647d
• IBM AIX Unix

For proper operation the minimal hardware requirements are: Memory - 512 Mb, Swap Space - 1.5Gb.

HKL-package reference

Any publications, mentioned HKL-package, should contain the following reference:

Otwinowski Z. and Minor W.,
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.,