MacMolecular: a program for visualization of molecular structures on the Macintosh

Area of Science:

• Computational biology
• Structural bioinformatics
• Molecular modeling

Background:

• Accurate visualization of biomolecules is crucial for understanding their function.
• Existing molecular graphics programs may have limitations in terms of platform compatibility or feature set.

Purpose of the Study:

• To introduce MacMolecular, a novel software for displaying small- to medium-sized biomolecules, with a focus on peptides.
• To provide a versatile tool for molecular visualization and analysis on Macintosh computers.

Main Methods:

• The software supports multiple display modes including stick, ball and stick, depth-cued, and space-filling representations.
• Input is accepted from standard Protein Data Bank (PDB) files, Cartesian coordinate files, and Kinemage files.
• Features include customizable coloring, translation, rotation, zooming, and animation file generation.
• Atom bonding algorithms accommodate standard distance-based methods and sequential approaches for peptide backbone visualization.
• Stereo viewing and the ability to write modified structures to new PDB files are supported.

Main Results:

• MacMolecular offers a range of visualization options for biomolecules, particularly effective for peptide structures.
• The program enables interactive manipulation and analysis of molecular models.
• Generation of animation files and output of modified PDB files enhance the utility for research and presentation.

Conclusions:

• MacMolecular provides a powerful and flexible platform for the visualization and analysis of biomolecules on Macintosh systems.
• Its diverse input compatibility and advanced features, including animation and stereo viewing, make it a valuable tool for structural biologists and computational chemists.