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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：P11926 New Search
11PDB entries
11Biological assembly
20chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
1D7K CRYSTAL STRUCTURE OF HUMAN ORNITHINE DECARBOXYLASE AT 2.1 ANGSTROMS RESOLUTION Deposited 1999-10-18 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 7–427（421 aa）
Chain B 7–427（421 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；pH 7.5；289 K；20% PEG 3350, 0.2M NaCl, 5mM DTT, 0.1M Tris-HCl, pH 7.5, VAPOR DIFFUSION, temperature 16K
Resolution 2.10 Å R-free 0.288
2ON3 A structural insight into the inhibition of human and Leishmania donovani ornithine decarboxylases by 3-aminooxy-1-aminopropane Deposited 2007-01-23 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–461（461 aa）
Chain B 1–461（461 aa）
Not recorded XAP 3-AMINOOXY-1-AMINOPROPANE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；288.15 K；25% PEG3350, 0.2 M ammonium acetate, 0.1 M Bis-Tris, 2 mM APA, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 288.15K
Resolution 3.00 Å R-free 0.293
2OO0 A structural insight into the inhibition of human and Leishmania donovani ornithine decarboxylases by 3-aminooxy-1-aminopropane Deposited 2007-01-25 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–461（461 aa）
Chain B 1–461（461 aa）
Not recorded ACT ACETATE ION × 3 PLP PYRIDOXAL-5'-PHOSPHATE × 2 XAP 3-AMINOOXY-1-AMINOPROPANE × 2 N2P PENTANE-1,5-DIAMINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；288.15 K；25% PEG3350, 0.2 M ammonium acetate, O.1M MES, 2mM XAP, 0.3 % cadaverine, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 288.15K
Resolution 1.90 Å R-free 0.213
4ZGY STRUCTURE of HUMAN ORNITHINE DECARBOXYLASE IN COMPLEX WITH A C-TERMINAL FRAGMENT OF ANTIZYME Deposited 2015-04-24 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–421（420 aa） Fragment：UNP RESIDUES 2-421
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 1 MG MAGNESIUM ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；100MM MAGNESIUM ACETATE, 50MM MES PH 5.6, 20% 2-METHYL-2, 4-PENTANEDIOL(MPD), VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 277K
Resolution 2.63 Å R-free 0.256
5BWA Crystal structure of ODC-PLP-AZ1 ternary complex Deposited 2015-06-07 Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–461（461 aa）
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 1 X-RAY DIFFRACTION
X-ray crystallization conditions EVAPORATION；pH 8.5；288 K；0.2 M di-Ammonium tartrate, 20% PEG 3350
Resolution 3.20 Å R-free 0.289
7S3F Structure of cofactor pyridoxal 5-phosphate bound human ornithine decarboxylase in complex with its inhibitor 1-amino-oxy-3-aminopropane Deposited 2021-09-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–424（424 aa）
Chain B 1–424（424 aa）
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 2 XAP 3-AMINOOXY-1-AMINOPROPANE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；293 K；2% tacsimate, 0.1 M sodium citrate tribasic dihydrate pH 5.6, and 16% w/v polyethylene glycol 3350
Resolution 2.49 Å R-free 0.208
7S3G Structure of cofactor pyridoxal 5-phosphate bound human ornithine decarboxylase in complex with citrate at the catalytic center Deposited 2021-09-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–424（424 aa）
Chain B 1–424（424 aa）
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 2 CIT CITRIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION；293 K；100 mM tri-sodium citrate pH 5.0 and 30% polyethylene glycol monomethyl ether 550
Resolution 1.66 Å R-free 0.198
7U6P Structure of an intellectual disability-associated ornithine decarboxylase variant G84R Deposited 2022-03-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–424（424 aa）
Chain B 1–424（424 aa）
Not recorded PO4 PHOSPHATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；278 K；0.2 M sodium acetate trihydrate pH 7.0, 20% w/v polyethylene glycol 3350
Resolution 2.35 Å R-free 0.225
7U6U Structure of an intellectual disability-associated ornithine decarboxylase variant G84R in complex with PLP Deposited 2022-03-06 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–424（424 aa）
Chain B 1–424（424 aa）
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；277 K；0.2 M sodium acetate trihydrate pH 7.0, 20% w/v polyethylene glycol 3350
Resolution 1.85 Å R-free 0.204
9B8M Crystal structure of ornithine decarboxylase in complex with a novel inhibitor Deposited 2024-03-31 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–422（422 aa）
Chain B 1–422（422 aa）
Not recorded A1AQO O-{[(3R)-pyrrolidin-3-yl]methyl}hydroxylamine × 2 PLP PYRIDOXAL-5'-PHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；293 K；Not available
Resolution 2.90 Å R-free 0.223
9B8N Crystal structure of ornithine decarboxylase in complex with a novel inhibitor (10-S) Deposited 2024-03-31 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–424（424 aa）
Chain B 1–424（424 aa）
Not recorded PLP PYRIDOXAL-5'-PHOSPHATE × 2 A1AQP O-{[(3S)-pyrrolidin-3-yl]methyl}hydroxylamine × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；298 K；not available
Resolution 2.00 Å R-free 0.208

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.