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Protein Structures and Oligomeric States

Enter a protein name, UniProt accession or PDB ID. Name searches ask you to confirm the protein identity before related structures are queried.

Current Protein Identity：Q8TG13 New Search
1PDB entries
1Biological assembly
6chain/assembly records
Main Difference Dimensions in This Set
No difference found in parsed fields

Difference tags compare only the current result set; every original PDB and assembly record remains separate.

Related-Structure Differences

Each row represents one biological assembly in one PDB entry; multiple monomers of the same protein are listed separately.

PDB Entry Assembly / Oligomeric State Construct Mutations and Modifications Ligands, Ions and Non-polymers Experimental Method Experimental Conditions Structure Quality
12SA Crystal Structure of the Catalytic Subunit of the Circadian Regulator Casein Kinase 2 from Neurospora crassa Deposited 2026-04-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain A 2–336（335 aa）
Chain B 2–336（335 aa）
Chain C 2–336（335 aa）
Chain D 2–336（335 aa）
Chain E 2–336（335 aa）
Chain F 2–336（335 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293.15 K；0.1 M BES-Triethanolamine 10% w/v PEG 8000, 20% v/v 1,5-Pentanediol 0.001M Rubidium chloride 0.001M Strontium acetate 0.001M Cesium acetate 0.001M Barium acetate
Resolution 2.80 Å R-free 0.244

This page presents structural evidence recorded in PDB/mmCIF.“No recorded non-water small molecule” does not prove that the experimental sample was ligand-free; experimental conditions belong to the PDB experiment, while ligands and copy counts are shown for each biological assembly.