Biological Assembly files for large structures

07/05

Biological assembly files for large structures are now available for download from the Structure Summary page in the PDBx/mmCIF format. These files are also available on the FTP site (ftp://ftp.wwpdb.org/pub/pdb/data/biounit/mmCIF/). The PDBx/mmCIF format has no restrictions on the number of atoms and chains and can hold biological assemblies of any size.
The biological assembly is the macromolecular assembly that has either been shown to be or is believed to be the functional form of the molecule. For more information, see PDB-101’s biological assembly tutorial.

"Download files" menu for a large structure PDB ID 5FDV. In this case, the asymmetric unit contains two copies of the ribosome. They are represented as two biological assemblies files: 5fdv-assembly1.cif.gz and 5fdv-assembly2.cif.gz.

New Features Index

• 10/11 View Validation in 3D

• 10/11 Explore Ligand Interactions in 3D

• 10/11 New Images for Transmembrane Proteins

• 10/11 Improved Access to Small Molecule Information

• 10/11 Access More Diffraction Image Data

• 08/23 Rapid Visualization of Large Structure using NGL/MMTF

• 08/23 Mapping Protein Features onto 3D Structure

• 08/23 Mapping 3D Structures to Pathways

• 08/23 Search: Molecule of the Month, PDB-101, News

• 08/23 Access Diffraction Image Data

• 07/26 HTTPS and RCSB PDB

• 07/05 Explore Protein Modifications

• 07/05 Biological Assembly files for large structures