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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：P10724 New Search
11PDB entries
12Biological assembly
24chain/assembly records
Main Difference Dimensions in This Set
Different construct Different mutation/modification 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
13LD Deuterated alanine racemase from Geobacillus stearothermophilus Deposited 2026-05-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 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 mmCIF provides none of the parsed conditions Resolution 1.90 Å R-free 0.204
13LD Deuterated alanine racemase from Geobacillus stearothermophilus Deposited 2026-05-12 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–388（388 aa）
Chain D 1–388（388 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 mmCIF provides none of the parsed conditions Resolution 1.90 Å R-free 0.204
1BD0 ALANINE RACEMASE COMPLEXED WITH ALANINE PHOSPHONATE Deposited 1998-05-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Not recorded IN5 {1-[(3-HYDROXY-METHYL-5-PHOSPHONOOXY-METHYL-PYRIDIN-4-YLMETHYL)-AMINO]-ETHYL}-PHOSPHONIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；PROTEIN WAS CRYSTALLIZED FROM 100MM TRIS BUFFER, PH 8.5, 200MM SODIUM ACETATE, 21% PEG 4000, AND 4MM 1-AMINOETHYL PHOSPHONIC ACID.
Resolution 1.60 Å R-free 0.266
1EPV ALANINE RACEMASE WITH BOUND INHIBITOR DERIVED FROM D-CYCLOSERINE Deposited 2000-03-29 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–388（387 aa）
Chain B 2–388（387 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) DCS D-[3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YLMETHYL]-N,O-CYCLOSERYLAMIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；PEG 4000, sodium acetate, tris, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Resolution 2.20 Å R-free 0.226
1FTX Crystal structure of alanine racemase in complex with D-alanine phosphonate Deposited 2000-09-13 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 2–388（387 aa）
Chain B 2–388（387 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) EPC (1S)-1-[((1E)-{3-HYDROXY-2-METHYL-5-[(PHOSPHONOOXY)METHYL]PYRIDIN-4-YL}METHYLENE)AMINO]ETHYLPHOSPHONIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；23% PEG 4000, 200mM sodium acetate, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.20 Å R-free 0.211
1L6F Alanine racemase bound with N-(5'-phosphopyridoxyl)-L-alanine Deposited 2002-03-09 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) PP3 ALANYL-PYRIDOXAL-5'-PHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；PEG 4000, sodium acetate, Tris-buffer, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.225
1L6G Alanine racemase bound with N-(5'-phosphopyridoxyl)-D-alanine Deposited 2002-03-10 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) PDD N-(5'-PHOSPHOPYRIDOXYL)-D-ALANINE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；293 K；PEG 4000, sodium acetate, Tris-buffer, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
Resolution 2.00 Å R-free 0.216
1NIU ALANINE RACEMASE WITH BOUND INHIBITOR DERIVED FROM L-CYCLOSERINE Deposited 2002-12-26 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) DCS D-[3-HYDROXY-2-METHYL-5-PHOSPHONOOXYMETHYL-PYRIDIN-4-YLMETHYL]-N,O-CYCLOSERYLAMIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；273 K；23% PEG 4K, 200mM sodium acetate, 100mM tris buffer, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 273K
Resolution 2.20 Å R-free 0.231
1SFT ALANINE RACEMASE Deposited 1996-09-20 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) ACT ACETATE ION × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.5
Resolution 1.90 Å R-free 0.267
1XQK Effect of a Y265F Mutant on the Transamination Based Cycloserine Inactivation of Alanine Racemase Deposited 2004-10-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–382（382 aa）
Chain B 1–382（382 aa）
Mutation：Y265F Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：Y265F Non-standard monomer：Yes (specific site not provided by mmCIF) PMH (5-HYDROXY-4-{[(3-HYDROXYISOXAZOL-4-YL)AMINO]METHYL}-6-METHYLPYRIDIN-3-YL)METHYL DIHYDROGEN PHOSPHATE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；PEG 4K, NaAc, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 398K
Resolution 1.95 Å R-free 0.240
1XQL Effect of a Y265F Mutant on the Transamination Based Cycloserine Inactivation of Alanine Racemase Deposited 2004-10-12 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–382（382 aa）
Chain B 1–382（382 aa）
Mutation：Y265F Non-standard monomer：Yes (specific site not provided by mmCIF) Mutation：Y265F Non-standard monomer：Yes (specific site not provided by mmCIF) PMP 4'-DEOXY-4'-AMINOPYRIDOXAL-5'-PHOSPHATE × 2 PMH (5-HYDROXY-4-{[(3-HYDROXYISOXAZOL-4-YL)AMINO]METHYL}-6-METHYLPYRIDIN-3-YL)METHYL DIHYDROGEN PHOSPHATE × 2 PLP PYRIDOXAL-5'-PHOSPHATE × 2 4AX (R)-4-AMINO-ISOXAZOLIDIN-3-ONE × 2 ACY ACETIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8.5；298 K；PEG 4K, NaAc, pH 8.5, VAPOR DIFFUSION, HANGING DROP, temperature 398K
Resolution 1.80 Å R-free 0.214
2SFP ALANINE RACEMASE WITH BOUND PROPIONATE INHIBITOR Deposited 1999-02-16 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–388（388 aa）
Chain B 1–388（388 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) Non-standard monomer：Yes (specific site not provided by mmCIF) PLP PYRIDOXAL-5'-PHOSPHATE × 2 PPI PROPANOIC ACID × 2 X-RAY DIFFRACTION
X-ray crystallization conditions pH 8.5；pH 8.50
Resolution 1.90 Å R-free 0.259

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.