.PDB

Protein Data Bank File

Learn about .pdb files - Protein Data Bank File. Find software to open, compatibility information, and alternatives.

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.PDB
Protein Data Bank File

What is a .pdb file?

File Extension Details

The PDB (Protein Data Bank) file format is a standard text-based file format used to store the three-dimensional structural data of biological molecules, primarily proteins, nucleic acids, and complex assemblies. Developed by the Protein Data Bank, this format provides a detailed record of atomic coordinates, including the X, Y, and Z positions of each atom within a molecule, as well as information regarding residue names, chain identifiers, and secondary structure assignments like alpha-helices and beta-sheets. Because proteins are dynamic and complex, the PDB format serves as the universal language for structural biologists, bioinformaticians, and pharmaceutical researchers. It allows scientists to visualize molecular interactions, perform docking simulations for drug discovery, and analyze the folding patterns that dictate biological function. While newer formats like mmCIF have been introduced to handle the increasing size and complexity of modern structural data, the PDB format remains the most widely supported and historically significant format in the field of computational biology.

Software Compatibility

Programs that can open and work with .pdb files

Windows

Compatible Applications

PyMOL Compatible
ChimeraX Compatible
VMD Compatible
RasMol Compatible

macOS

Compatible Applications

PyMOL Compatible
ChimeraX Compatible
VMD Compatible
MacPyMOL Compatible

Linux

Compatible Applications

PyMOL Compatible
ChimeraX Compatible
VMD Compatible
GROMACS Compatible

Mobile

Mobile Applications

Molecule Viewer Compatible
iMolview Compatible

Frequently Asked Questions

About .pdb files

To open a .pdb file, you need compatible software. Here are some options:

  • PyMOL
  • ChimeraX
  • Molecule Viewer

To convert a .pdb file to another format, you can:

  1. Use compatible software Many programs that open .pdb files also allow you to save or export them to different formats.
  2. Try online conversion services: Websites like Zamzar, CloudConvert, or Online-Convert allow you to convert files between different formats without installing software.
  3. Specialized conversion tools: Search for '.pdb converter' to find tools specifically designed for this file type.

  1. Verify the file extension is correct:
  2. Update your software:
  3. Try alternative software:
  4. Check for file corruption:

Like any file type, .pdb files can be safe or potentially risky depending on their source:

  • Always scan files with antivirus software before opening
  • Keep your operating system and applications updated.
  • Be especially cautious with executable file types

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