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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：Q2G0X2 New Search
6PDB entries
7Biological assembly
12chain/assembly records
Main Difference Dimensions in This Set
Different construct Different assembly state Different ligand/ion 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
9QE3 Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and selenocyanate at pH 5.5 Deposited 2025-03-07 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 43–102（60 aa）
Chain F 43–102（60 aa）
Not recorded SEK SELENOCYANATE ION × 32 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 4 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；295.15 K；0.1 M Na Acet 5.5 pH (Buffer) 6 %(w/v) PEG 8K (Precipitant) 10 %(w/v) PEG 1K (Precipitant) 0.4 M KSeCN (Salt)
Resolution 2.06 Å R-free 0.234
9QEX Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and thiocyanate at pH 7.5 Deposited 2025-03-11 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 43–102（60 aa）
Chain F 43–102（60 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 2 CA CALCIUM ION × 2 SCN THIOCYANATE ION × 15 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；295.15 K；0.1 M TRIS 7.5 pH (Buffer) 4 %(w/v) PEG 8K (Precipitant) 10 %(w/v) PEG 1K (Precipitant) 0.4 M KSCN (Salt)
Resolution 1.90 Å R-free 0.216
9QGA Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and bromide at pH 7.5 Deposited 2025-03-13 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 43–102（60 aa）
Chain F 43–102（60 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 2 BR BROMIDE ION × 46 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 CA CALCIUM ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.5；295.15 K；0.1 M TRIS 7.5 pH 6 %(w/v) PEG 8K 8 %(w/v) PEG 1K 0.4 M NaI
Resolution 2.21 Å R-free 0.252
9QJ3 Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and iodide at pH 5.5 Deposited 2025-03-18 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 43–102（60 aa）
Chain F 43–102（60 aa）
Not recorded IOD IODIDE ION × 89 CA CALCIUM ION × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；295.15 K；0.1 M Na Acet 5.5 pH 6 %(w/v) PEG 8K 10 %(w/v) PEG 1K 0.4 M NaI
Resolution 2.63 Å R-free 0.249
9QJO Structure of native leukocyte myeloperoxidase in complex with the Staphylococcal Peroxidase Inhibitor SPIN and bromide at pH 5.5 Deposited 2025-03-19 Assembly 1 Other combination Heteromer；Protein × 6 PDB declaration: hexameric（6） Consistent with protein count
Chain E 30–102（73 aa）
Chain F 30–102（73 aa）
Not recorded NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 3 BR BROMIDE ION × 56 CA CALCIUM ION × 2 HEM PROTOPORPHYRIN IX CONTAINING FE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；295.15 K；10 %(w/v) PEG 1K 8 %(w/v) PEG 8K 0.4 M NaBr 0.1 M Na Acet 5.5 pH
Resolution 2.18 Å R-free 0.232
9SDS Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and chloride at pH 5.5 Deposited 2025-08-14 Assembly 1 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain E 43–102（60 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 1 IOD IODIDE ION × 1 CA CALCIUM ION × 1 CL CHLORIDE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；295.15 K；0.1 M Na Acet 5.5 pH (Buffer) 10 %w/v PEG 1K (Precipitant) 7 %w/v PEG 8K (Precipitant) 0.4 M NaI (Salt)
Resolution 2.49 Å R-free 0.234
9SDS Structure of native leukocyte myeloperoxidase in complex with a truncated version of the Staphylococcal Peroxidase Inhibitor SPIN and chloride at pH 5.5 Deposited 2025-08-14 Assembly 2 Other combination Heteromer；Protein × 3 PDB declaration: trimeric（3） Consistent with protein count
Chain F 43–102（60 aa）
Not recorded HEM PROTOPORPHYRIN IX CONTAINING FE × 1 IOD IODIDE ION × 1 CA CALCIUM ION × 1 CL CHLORIDE ION × 1 NAG 2-acetamido-2-deoxy-beta-D-glucopyranose × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 5.5；295.15 K；0.1 M Na Acet 5.5 pH (Buffer) 10 %w/v PEG 1K (Precipitant) 7 %w/v PEG 8K (Precipitant) 0.4 M NaI (Salt)
Resolution 2.49 Å R-free 0.234

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.