1A3E

1A3E is an accession code in the Protein Data Bank (PDB), the global repository for three‑dimensional structural data of biological macromolecules. PDB entries such as 1A3E encode experimentally determined coordinates, along with accompanying metadata, that enable researchers to study the shape, assembly, and potential function of a macromolecule.

A typical PDB entry includes the molecular coordinates of the atoms in the structure, information about the macromolecule or complex, and details about the experimental method used to determine the structure. Additional data cover crystallographic or NMR parameters, quality indicators, chain identifiers, ligand or solvent molecules, and the biological assembly. Each entry also provides identifiers for related sequences and annotations, and cross-references to external resources and literature.

Access to 1A3E is provided through the PDB database, where researchers can download coordinate files in standard formats and use visualization or modeling tools to analyze the structure. Such analyses support tasks including comparative structural studies, interpretation of functional sites, and computational docking or design efforts. The entry may also be linked to publications that describe the experimental work, as well as to broader databases that complement sequence, functional, or evolutionary information.

As with all PDB entries, 1A3E represents a snapshot of a structure under particular experimental conditions. Users should consider data quality indicators, resolution, and potential limitations when interpreting the structure. The PDB maintains updates to entries as corrections or clarifications arise, ensuring that 1A3E remains a current resource for the scientific community. See also the Protein Data Bank, X-ray crystallography, and related structural biology resources.