1pnK

1PNK is the Protein Data Bank (PDB) accession code for a single three-dimensional structure entry deposited in the PDB. Each PDB ID uniquely identifies a structural dataset, which includes coordinates for the macromolecule or complex and accompanying metadata. The 1PNK entry lists the biomolecule type (for example, a protein, nucleic acid, or a protein–ligand complex), the experimental method used to determine the structure (such as X-ray crystallography, nuclear magnetic resonance spectroscopy, or cryo-electron microscopy), and the resolution or other quality indicators. It also provides information about the composition of the asymmetric unit, the assembly, chain identifiers, sequence data, and information about ligands, metals, or cofactors.

The data in 1PNK are curated and stored by the Worldwide Protein Data Bank consortium (wwPDB) and are accessible through PDB portals. In addition to coordinates, the entry typically includes experimental details, authors, deposition date, related publications, and validation reports that summarize structural quality and any uncertainties. The entry may also specify conditions under which the structure was determined, such as temperature and crystallization conditions, as well as references to structural studies.

Because PDB IDs are immutable references, researchers cite 1PNK when discussing structural features, comparisons with related structures, or computational studies that rely on the atomic coordinates. To obtain the complete details—the exact biomolecule, organism of origin, and the experimental context—visiting the official PDB page for 1PNK is recommended.