PyMOL is a user-sponsored molecular visualization system created by Warren Lyford DeLano and now maintained by Schrödinger, Inc[1]. It is the most widely used tool for visualizing three-dimensional structures of proteins, nucleic acids, and small molecules, making it indispensable for neurodegeneration research. PyMOL enables researchers to generate publication-quality images and animations of molecular structures critical to understanding disease mechanisms in Alzheimer's Disease, Parkinson's Disease, and related disorders.
PyMOL provides exceptional visualization capabilities essential for neurodegeneration research:
| Feature | Description | Application |
|---|---|---|
| Ray Tracing | Photorealistic rendering with shadows and reflections | Publication-quality figures |
| Volumetric Rendering | Density map visualization | Cryo-EM maps, EMDB data |
| Surface Representation | Solvent-accessible and molecular surfaces | Protein-protein interactions |
| Cartoon/Ribbon | Secondary structure representation | Domain organization |
| Stick/Ball-and-Stick | Atomic detail representation | Ligand binding sites |
| Mesh Visualization | Electrostatic potential maps | Charge distribution analysis |
PyMOL supports Python-based scripting for automated workflows:
PyMOL is essential for visualizing amyloid-beta and tau pathology[2][3]:
Critical for alpha-synuclein and LRRK2 research[4][5]:
# Load structure
fetch 5OQV, async=0
# Display style
show cartoon, all
color rainbow, ss
# Ray trace for publication
ray 2000, 2000
png amyloid_fibril.png, dpi=300
# Fetch and prep membrane protein
fetch 6HRE
hide everything
show cartoon, 6HRE
# Add ligands
show sticks, resn ADE
show sphere, resn ZN
# Generate surface
set surface_color, grey70
show surface, 6HRE
# Align multiple structures
align_all_states 5OQV 6HRE 4D0D
zoom visible
png aligned_structures.png
| Tool | Integration | Use Case |
|---|---|---|
| GROMACS | PyMOL plugin | Trajectory visualization |
| VMD | Import .gro/.pdb | Alternative MD viewer |
| OpenMM | PyMOL API | Custom analysis |
| MDAnalysis | Export to PyMOL | Python-based analysis |
# Conda (recommended)
conda install -c conda-forge pymol
# Pip (open-source version)
pip install pymol
# From source
git clone https://github.com/schrodinger/pymol-open-source.git
cd pymol-open-source
python setup.py install
# Launch PyMOL
pymol
# Fetch structure from PDB
fetch 5OQV
# Display commands
show cartoon
color red, chain A
zoom all
ray 2000, 2000
save structure.png
DeLano WL. PyMOL: An open-source molecular graphics tool. Protein Crystallography. 2002. ↩︎
Gremer L, et al. Fibril structure of amyloid-beta(1-42) by cryo-electron microscopy. Science. 2017. ↩︎
Fitzpatrick AWP, et al. Cryo-EM structures of tau filaments from Alzheimer's disease brain. Nature. 2017. ↩︎
Tuttle MD, et al. Solid-state NMR structure of a pathogenic fibril of full-length alpha-synuclein. Nature Communications. 2016. ↩︎
Guzman-Luna J, et al. LRRK2 Kinase Domain Mutations and Structure: Implications for Parkinson's Disease. Frontiers in Neuroscience. 2022. ↩︎