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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：P13727 New Search
9PDB entries
14Biological assembly
15chain/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
1H8U Crystal Structure of the Eosinophil Major Basic Protein at 1.8A: An Atypical Lectin with a Paradigm Shift in Specificity Deposited 2001-02-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 106–222（117 aa）
Not recorded SO4 SULFATE ION × 5 GOL GLYCEROL × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6；100MM MALONIC ACID PH6, 140MM POTTASIUM DIHYDROGEN PHOSPHATE., pH 6.00
Resolution 1.80 Å R-free 0.264
1H8U Crystal Structure of the Eosinophil Major Basic Protein at 1.8A: An Atypical Lectin with a Paradigm Shift in Specificity Deposited 2001-02-15 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 106–222（117 aa）
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION
X-ray crystallization conditions pH 6；100MM MALONIC ACID PH6, 140MM POTTASIUM DIHYDROGEN PHOSPHATE., pH 6.00
Resolution 1.80 Å R-free 0.264
2BRS EMBP Heparin complex Deposited 2005-05-11 Assembly 1 Other combination Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 106–222（117 aa）
Not recorded SO4 SULFATE ION × 5 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.291
2BRS EMBP Heparin complex Deposited 2005-05-11 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 106–222（117 aa）
Not recorded SO4 SULFATE ION × 3 X-RAY DIFFRACTION mmCIF provides none of the parsed conditions Resolution 2.20 Å R-free 0.291
4QXX Structure of the amyloid forming peptide GNLVS (residues 26-30) from the eosinophil major basic protein (EMBP) Deposited 2014-07-22 Assembly 1 Protein homooligomer Homooligomer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain Z 131–135（5 aa） Fragment：GNLVS peptide (UNP residues 131-135)
Not recorded No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4.2；291 K；2 M ammonium sulfate, 0.1 M phosphate/citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 291K
Resolution 1.45 Å R-free 0.192
7Y5N Structure of 1:1 PAPP-A.ProMBP complex(half map) Deposited 2022-06-17 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain A 1–222（222 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 10 ZN ZINC ION × 1 CA CALCIUM ION × 7 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.45 Å
8HGG Structure of 2:2 PAPP-A.ProMBP complex Deposited 2022-11-14 Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric（4） Consistent with protein count
Chain A 1–222（222 aa）
Chain B 1–222（222 aa）
Not recorded ZN ZINC ION × 2 ELECTRON MICROSCOPY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.64 Å
9DKZ In situ microED structure of the Eosinophil major basic protein-1 Deposited 2024-09-10 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 107–222（116 aa）
Not recorded No recorded non-water small molecule ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7；secretory granule matrix
cryo-EM vitrification conditions Cryogen ETHANE；Blot time of 6~8 sec, single-side back blotting
Resolution 3.20 Å R-free 0.311
9PPV In situ MicroED structure of human eosinophil major basic protein-1 Deposited 2025-07-22 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 106–222（117 aa）
Not recorded CL CHLORIDE ION × 1 ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å R-free 0.313
9PPV In situ MicroED structure of human eosinophil major basic protein-1 Deposited 2025-07-22 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 106–222（117 aa）
Not recorded CL CHLORIDE ION × 1 ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.00 Å R-free 0.313
9PSE In situ MicroED structure of IL-5 activated human eosinophil major basic protein-1 Deposited 2025-07-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 107–222（116 aa）
Not recorded CL CHLORIDE ION × 1 ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4；Harvested from human donor peripheral blood and rested in 1640 RPMI medium supplemented with 0.1% human serum albumin (HSA)
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å R-free 0.320
9PSE In situ MicroED structure of IL-5 activated human eosinophil major basic protein-1 Deposited 2025-07-25 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 107–222（116 aa）
Not recorded CL CHLORIDE ION × 1 ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4；Harvested from human donor peripheral blood and rested in 1640 RPMI medium supplemented with 0.1% human serum albumin (HSA)
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å R-free 0.320
9PSK In situ MicroED structure of IL-33 activated human eosinophil major basic protein-1 Deposited 2025-07-25 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 106–222（117 aa）
Not recorded No recorded non-water small molecule ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4；Harvested eosinophiles resting in 1640 RPMI medium (Sigma-Aldrich) supplemented with 0.1% human serum albumin (HSA) (Sigma-Aldrich)
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å R-free 0.340
9PSK In situ MicroED structure of IL-33 activated human eosinophil major basic protein-1 Deposited 2025-07-25 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 106–222（117 aa）
Not recorded CL CHLORIDE ION × 1 ELECTRON CRYSTALLOGRAPHY
cryo-EM buffer pH 7.4；Harvested eosinophiles resting in 1640 RPMI medium (Sigma-Aldrich) supplemented with 0.1% human serum albumin (HSA) (Sigma-Aldrich)
cryo-EM vitrification conditions Cryogen ETHANE
Resolution 3.18 Å R-free 0.340

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.