1z31w

1z31w is a unique identifier often encountered in the context of protein data, specifically within the Protein Data Bank (PDB). This identifier refers to a specific entry that contains structural information about a protein molecule. In this case, 1z31w denotes a particular experimental determination of a protein's three-dimensional structure.

The PDB is a global archive of three-dimensional structural data of large biological molecules, including proteins and nucleic acids. Each entry in the PDB is assigned a unique four-character alphanumeric code, which serves as a reference for that specific structure. The 'w' at the end of 1z31w suggests it might be a specific variant, refinement, or model within a larger dataset or experiment related to the primary entry 1z31. Without further context, the exact nature of the 'w' is speculative, but it indicates a distinction from other related entries.

Researchers utilize these PDB identifiers to access and study the atomic coordinates of proteins, which is crucial for understanding their function, interactions, and for designing new drugs or biomaterials. The information associated with 1z31w would include experimental details, such as the method used to determine the structure (e.g., X-ray crystallography, Nuclear Magnetic Resonance), and the atomic coordinates themselves. Analyzing these structures allows scientists to visualize the protein's shape, identify active sites, and investigate how it interacts with other molecules.