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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：P42771 New Search
5PDB entries
5Biological assembly
5chain/assembly records
Main Difference Dimensions in This Set
Different assembly state 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
1A5E SOLUTION NMR STRUCTURE OF TUMOR SUPPRESSOR P16INK4A, 18 STRUCTURES Deposited 1998-02-13 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–156（156 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.5；293 K；Ionic strength (raw mmCIF value) CA. 0；Pressure NO
NMR sample composition H2O AND D2O
Resolution not provided
1BI7 MECHANISM OF G1 CYCLIN DEPENDENT KINASE INHIBITION FROM THE STRUCTURE OF THE CDK6-P16INK4A TUMOR SUPPRESSOR COMPLEX Deposited 1998-06-22 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–156（156 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 3.40 Å R-free 0.330
1DC2 SOLUTION NMR STRUCTURE OF TUMOR SUPPRESSOR P16INK4A, 20 STRUCTURES Deposited 1999-11-04 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–156（156 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.5；293 K；Ionic strength (raw mmCIF value) 0；Pressure AMBIENT
NMR sample composition 0.2-0.4 MM P16INK4A U-15N,13C; 4 MM HEPES, 1 MM DTT, 5 UM EDTA; 95% H2O, 5% D2O
NMR sample composition 0.2-0.4 MM P16INK4A U-15N; 4 MM HEPES, 1 MM DTT, 5 UM EDTA; 95% H2O, 5% D2O
NMR sample composition 0.2-0.4 MM P16INK4A; 4 MM HEPES, 1 MM DTT, 5 UM EDTA; 95% H2O, 5% D2O
Resolution not provided
2A5E SOLUTION NMR STRUCTURE OF TUMOR SUPPRESSOR P16INK4A, RESTRAINED MINIMIZED MEAN STRUCTURE Deposited 1998-02-13 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 1–156（156 aa）
Not recorded No recorded non-water small molecule SOLUTION NMR
NMR measurement conditions pH 7.5；293 K；Ionic strength (raw mmCIF value) CA. 0；Pressure NO
NMR sample composition H2O AND D2O
Resolution not provided
7OZT Nanobodies restore stability to cancer-associated mutants of tumor suppressor protein p16INK4a Deposited 2021-06-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain BBB 1–156（156 aa）
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；291 K；Molecular Dimensions Morpheus screen condition G4
Resolution 1.74 Å R-free 0.209

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.