PXSim

PXSim simulates protein crystallographic diffraction images to analyze unique data coverage across crystal settings and series of diffraction images for macromolecular structure determination by X-ray crystallography.

Key Features:

• Simulation Capabilities: Generates realistic simulations of protein crystallographic diffraction patterns for analysis and planning.
• Data Coverage Analysis: Provides detailed analysis of unique data coverage for one or more crystal settings to evaluate completeness.
• Flexibility Across Crystal Settings: Supports simulations across series of diffraction images from different crystal orientations.
• Educational Utility: Facilitates visualization and understanding of X-ray crystallography principles through simulated data.
• CCP4 Integration: Operates as a component of the CCP4 program suite and uses standard data file formats for interoperability with other CCP4 tools.

Scientific Applications:

• Macromolecular Structure Determination: Supports planning and interpretation of X-ray crystallography experiments for macromolecular structures.
• Experiment Planning and Data Collection Optimization: Aids selection of crystal settings and image series to improve experimental design and data acquisition.
• Data Completeness and Quality Assessment: Enables evaluation of completeness and coverage to assess the quality of diffraction data.
• Teaching and Training: Serves as a resource for instruction in principles and practice of X-ray crystallography using simulated datasets.

Methodology:

Part of the CCP4 program suite, PXSim is developed primarily in standard Fortran77 and adheres to standard data file formats to facilitate integration with other CCP4 tools.