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How is the information structured?

On PDBe webpages, information from a PDB entry is divided into different sections to make the data easier for you to browse (see below).

The image below shows you a snapshot of an individual PDB entry page, with the differnt sections separated into tabs named Model Quality, Assemblies, Macromolecules, Ligand and Envirnments, Domains, Text Annotations (AI) and Citations.

Not all entries contain information for all sections – if there is no data for a section a red N/A will be shown on the tab title (as shown below). 

The scientists who generated this data gave the PDB entry (ID: 4kgc) the title:
Nucleosome Core Particle Containing (ETA6-P-CYMENE)-(1, 2-ETHYLENEDIAMINE)-RUTHENIUM

DNA in eukaryotes, such as humans, is wrapped around protein units and this is known as a nucleosome. This PDB entry is one of many examples of nucleosome structures in the PDB database.

We will now go through each of these tabs in more detail.

A central feature of the PDB web interface is the top navigation bar, which provides access to various categories of information about the structural entry. These tabs include: Summary, providing a general overview; Model Quality, for assessing the crystallographic data and model fit; Complexes, Macromolecules, Ligands and Environments, and Domains, for detailed information on the different components of the structure; and Text Annotations (AI) and Citations for further contextual and bibliographic details. This tab-based system allows researchers to efficiently navigate and retrieve specific data related to the protein structure.