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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：P51659 New Search
7PDB entries
15Biological assembly
24chain/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
1IKT LIGANDED STEROL CARRIER PROTEIN TYPE 2 (SCP-2) LIKE DOMAIN OF HUMAN MULTIFUNCTIONAL ENZYME TYPE 2 (MFE-2) Deposited 2001-05-07 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 618–736（119 aa） Fragment：C-terminal domain, Residues 618-736
Not recorded SO4 SULFATE ION × 2 OXN OXTOXYNOL-10 × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；277 K；ammonium sulfate, sodium chloride, Triton X-100, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Resolution 1.75 Å R-free 0.214
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain B 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain D 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain F 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 4 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain G 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain H 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 5 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain I 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain J 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1S9C Crystal structure analysis of the 2-enoyl-CoA hydratase 2 domain of human peroxisomal multifunctional enzyme type 2 Deposited 2004-02-04 Assembly 6 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain K 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Chain L 318–615（298 aa） Fragment：2-enoyl-coenzyme A hydratase 2 domain
Mutation：S318M, T319A, I559V, T615L Mutation：S318M, T319A, I559V, T615L No recorded non-water small molecule X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 8；295 K；PEG 10000, HEPES, MnCl2, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 295K
Resolution 3.00 Å R-free 0.265
1ZBQ Crystal Structure Of Human 17-Beta-Hydroxysteroid Dehydrogenase Type 4 In Complex With NAD Deposited 2005-04-08 Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain A 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Chain B 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.2M Lithium Sulphate monohydrate, 0.1M TRIS hydrochloride pH8.5, 30% w/v polyethylene glycol 4000, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.19 Å R-free 0.236
1ZBQ Crystal Structure Of Human 17-Beta-Hydroxysteroid Dehydrogenase Type 4 In Complex With NAD Deposited 2005-04-08 Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain C 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Chain D 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.2M Lithium Sulphate monohydrate, 0.1M TRIS hydrochloride pH8.5, 30% w/v polyethylene glycol 4000, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.19 Å R-free 0.236
1ZBQ Crystal Structure Of Human 17-Beta-Hydroxysteroid Dehydrogenase Type 4 In Complex With NAD Deposited 2005-04-08 Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric（2） Consistent with protein count
Chain E 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Chain F 1–304（304 aa） Fragment：N-terminal SHORT CHAIN DEHYDROGENASE DOMAIN
Not recorded NAD NICOTINAMIDE-ADENINE-DINUCLEOTIDE × 2 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；0.2M Lithium Sulphate monohydrate, 0.1M TRIS hydrochloride pH8.5, 30% w/v polyethylene glycol 4000, VAPOR DIFFUSION, SITTING DROP, temperature 293K
Resolution 2.19 Å R-free 0.236
6Z1W Crystal structure of human steroid carrier protein SL (SCP-2L) mutant A100C Deposited 2020-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 643–761（119 aa）
Mutation：A100C OXN OXTOXYNOL-10 × 1 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.4；277 K；2.2 M ammonium sulfate, 0.2 M NaCl and 0.1 M citric acid
Resolution 2.48 Å R-free 0.268
6Z1X Crystal structure of human steroid carrier protein SL (SCP-2L) mutant V83C Deposited 2020-05-14 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 643–761（119 aa）
Mutation：V83C OXN OXTOXYNOL-10 × 2 SO4 SULFATE ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.4；277 K；2.2 M ammonium sulfate, 0.2 M NaCl and 0.1 M citric acid
Resolution 2.09 Å R-free 0.237
8AF2 Human Sterol Carrier Protein with unnatural amino acid 2,2'-bipyridine alanine incorporated at position 111 Deposited 2022-07-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 618–736（119 aa）
Mutation：;2,2'-bipyridine alanine incorporated at position 111 ; Non-standard monomer：Yes (specific site not provided by mmCIF) TRT FRAGMENT OF TRITON X-100 × 2 SO4 SULFATE ION × 1 CU COPPER (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；281 K；well solution 2.3M ammonium sulphate, 100 mM citric acid pH 5.6 and 200 mM NaCl
Resolution 2.51 Å R-free 0.300
8AF2 Human Sterol Carrier Protein with unnatural amino acid 2,2'-bipyridine alanine incorporated at position 111 Deposited 2022-07-15 Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain B 618–736（119 aa）
Mutation：;2,2'-bipyridine alanine incorporated at position 111 ; Non-standard monomer：Yes (specific site not provided by mmCIF) TRT FRAGMENT OF TRITON X-100 × 1 SO4 SULFATE ION × 1 CU COPPER (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；281 K；well solution 2.3M ammonium sulphate, 100 mM citric acid pH 5.6 and 200 mM NaCl
Resolution 2.51 Å R-free 0.300
8AF3 Sterol carrier protein Artifical metalloenzyme incorporating Q111C mutation coupled to 2,2'-bipyridine Deposited 2022-07-15 Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric（1） Consistent with protein count
Chain A 618–736（119 aa）
Non-standard monomer：Yes (specific site not provided by mmCIF) TRT FRAGMENT OF TRITON X-100 × 1 SO4 SULFATE ION × 2 CU COPPER (II) ION × 1 X-RAY DIFFRACTION
X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 5.6；278 K；well solution 2.3M ammonium sulphate, 100 mM citric acid pH 5.6 and 200 mM NaCl
Resolution 1.52 Å R-free 0.239

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.