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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：Q12339 New Search
3PDB entries
3Biological assembly
4chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification Different assembly state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics

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
4MJ7 Crystal structure of the PIN domain of Saccharomyces cerevisiae Utp23 Deposited 2013-09-03 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–159（159 aa） Fragment：UNP residues 1-159
Chain B 1–159（159 aa） Fragment：UNP residues 1-159
Not recorded ZN ZINC ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；293 K；0.1M HEPES, 2%(v/v) tacsimate, 20%(w/v) polyethylene glycol 3350, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.51 Å R-free 0.288
9G25 snR30 snoRNP - State 1 - Utp23-Krr1-deltaC3 Deposited 2024-07-10 Assembly 1 Protein–RNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain K 1–254（254 aa）
Not recorded ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.89 Å
9G28 snR30 snoRNP - State 2 - Utp23-Krr1-deltaC3 Deposited 2024-07-10 Assembly 1 Protein–RNA Heteromer；Protein × 12 PDB declaration: 14-meric（14） Consistent with all polymers
Chain K 1–254（254 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 7.5
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å

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.