1EB1

1EB1 is a Protein Data Bank (PDB) accession code used to identify a specific macromolecular structure stored in the PDB. The PDB catalogues three-dimensional coordinates of biomolecules such as proteins and nucleic acids, and may include complexes with ligands, cofactors, or ions. A entry like 1EB1 provides not only the atomic coordinates but also associated metadata that describe how the structure was determined and how it can be interpreted.

The content of a PDB entry typically includes the atomic coordinates for one or more chains, residue and atom labels, and information about any biological assembly or crystallographic unit. It may also list bound ligands, metal ions, prosthetic groups, and solvent molecules such as water. In addition, the entry contains experimental details such as the method used to determine the structure (for example X-ray crystallography, nuclear magnetic resonance, or cryo-electron microscopy), the resolution or data quality indicators, temperature, and crystallographic statistics like R-work and R-free where applicable.

Entries also provide bibliographic information, including authors and a citation to the original publication describing the structure. The biological context, such as the protein’s function and organism of origin, is summarized and linked to experimental evidence in the entry. Users can access 1EB1 through the RCSB PDB website or other PDB mirrors to view structure summaries, download coordinates, and examine the geometry of the macromolecule.

In sum, 1EB1 serves as a reference point for a particular experimentally determined macromolecular structure, with detailed coordinates and metadata that enable structural analysis and modeling.