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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：P63151 New Search
10PDB entries
11Biological assembly
11chain/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
3DW8 Structure of a Protein Phosphatase 2A Holoenzyme with B55 subunit Deposited 2008-07-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–447（447 aa）
Mutation：I310V MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；7-10% PEG 35000, 0.10-0.15 M Sodium citrate pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.85 Å R-free 0.285
3DW8 Structure of a Protein Phosphatase 2A Holoenzyme with B55 subunit Deposited 2008-07-21 Assembly 2 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain E 1–447（447 aa）
Mutation：I310V MN MANGANESE (II) ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.5；290 K；7-10% PEG 35000, 0.10-0.15 M Sodium citrate pH 5.5, VAPOR DIFFUSION, HANGING DROP, temperature 290K
Resolution 2.85 Å R-free 0.285
8SO0 Cryo-EM structure of the PP2A:B55-FAM122A complex Deposited 2023-04-28 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded FE FE (III) ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；CHAPSO was added only immediately prior to vitrification
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.80 Å
8TTB Cryo-EM structure of the PP2A:B55-ARPP19 complex Deposited 2023-08-13 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded FE FE (III) ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8；CHAPSO was added only immediately prior to vitrification
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.77 Å
8TWE Cryo-EM structure of the PP2A:B55-FAM122A complex, B55 body Deposited 2023-08-21 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8；CHAPSO was added only immediately prior to vitrification
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.55 Å
8UO5 Protein Phosphatase 2A B55 subunit in complex with IER5 Deposited 2023-10-19 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 1–447（447 aa）
Not recorded FE FE (III) ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.6
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.27 Å
9C6B PP2A:B55-p107 substrate complex Deposited 2024-06-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded FE2 FE (II) ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.60 Å
9C7T PP2A:B55-Eya3 substrate complex Deposited 2024-06-11 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded FE2 FE (II) ION × 1 ZN ZINC ION × 1 ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 2.70 Å
9MZW PP2A-B55 holoenzyme Deposited 2025-01-23 Assembly 1 Protein heterocomplex Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.16 Å
9N0Y PP2A-B55 Holoenzyme with Eya3 Deposited 2025-01-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.71 Å
9N0Z PP2A-B55 Holoenzyme with B55i Deposited 2025-01-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain B 2–447（446 aa）
Not recorded No recorded non-water small molecule ELECTRON MICROSCOPY
cryo-EM buffer pH 8
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.50 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.