3qfb

Crystal structure of the human thioredoxin reductase-thioredoxin complex

Method: X-RAY DIFFRACTION D_max: 114.1 Å Quality: GOOD

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1. Protein Identity and Related Structures Protein Identity & Related Structures

Thioredoxin reductase 1, cytoplasmic

Homo sapiens

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain A； UniProt 1–499 Chain B； UniProt 1–499	Mutation：C497S, U498C	Thioredoxin × 2 （P10599） FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 GOL GLYCEROL × 6	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7.6；297.15 K；15% PEG 4000, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 297.15K	Resolution 2.60 Å R-free 0.297

Other States of the Same Protein in the Database

Each row is a biological assembly of the same UniProt protein in another PDB entry. The “Difference from current entry” column identifies evidence-level differences; no tag means the currently parsed fields agree.

Other PDB	Difference from Current Entry 3QFB	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
2CFY Crystal structure of human thioredoxin reductase 1 Deposited 2006-02-26	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–499（499 aa） Chain B 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；150 UL SITTING DROPS, 20% PEG3350, 0.1 M TRIS PH 7, ADDITIVE: NSDB-221	Resolution 2.70 Å R-free 0.248
2CFY Crystal structure of human thioredoxin reductase 1 Deposited 2006-02-26	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain C 1–499（499 aa） Chain D 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；150 UL SITTING DROPS, 20% PEG3350, 0.1 M TRIS PH 7, ADDITIVE: NSDB-221	Resolution 2.70 Å R-free 0.248
2CFY Crystal structure of human thioredoxin reductase 1 Deposited 2006-02-26	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain E 1–499（499 aa） Chain F 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；150 UL SITTING DROPS, 20% PEG3350, 0.1 M TRIS PH 7, ADDITIVE: NSDB-221	Resolution 2.70 Å R-free 0.248
2J3N X-ray structure of human thioredoxin reductase 1 Deposited 2006-08-22	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–499（499 aa） Chain B 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 3	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.80 Å R-free 0.287
2J3N X-ray structure of human thioredoxin reductase 1 Deposited 2006-08-22	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain C 1–499（499 aa） Chain D 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.80 Å R-free 0.287
2J3N X-ray structure of human thioredoxin reductase 1 Deposited 2006-08-22	Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain E 1–499（499 aa） Chain F 1–499（499 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2 MPD (4S)-2-METHYL-2,4-PENTANEDIOL × 1	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.80 Å R-free 0.287
2ZZ0 Crystal structure of human thioredoxin reductase I (SeCys 498 Cys) Deposited 2009-02-02	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 150–649（500 aa） Fragment：residues (-13)-499 Chain B 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M magnesium Sulfate, 0.05M MES, pH 6.0, 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.80 Å R-free 0.277
2ZZ0 Crystal structure of human thioredoxin reductase I (SeCys 498 Cys) Deposited 2009-02-02	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain C 150–649（500 aa） Fragment：residues (-13)-499 Chain D 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 SO4 SULFATE ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M magnesium Sulfate, 0.05M MES, pH 6.0, 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.80 Å R-free 0.277
2ZZB Crystal structure of human thioredoxin reductase I and terpyridine platinum(II) Deposited 2009-02-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 150–649（500 aa） Fragment：residues (-13)-499 Chain B 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 SO4 SULFATE ION × 2 TPT 2,2':6',2''-TERPYRIDINE PLATINUM(II) Chloride × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M magnesium Sulfate, 0.05M MES, pH 6.0, additive: 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 3.20 Å R-free 0.305
2ZZB Crystal structure of human thioredoxin reductase I and terpyridine platinum(II) Deposited 2009-02-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain C 150–649（500 aa） Fragment：residues (-13)-499 Chain D 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 SO4 SULFATE ION × 2 TPT 2,2':6',2''-TERPYRIDINE PLATINUM(II) Chloride × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M magnesium Sulfate, 0.05M MES, pH 6.0, additive: 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 3.20 Å R-free 0.305
2ZZC Crystal structure of NADP(H):human thioredoxin reductase I Deposited 2009-02-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 150–649（500 aa） Fragment：residues (-13)-499 Chain B 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M Magnesium Sulfate, 0.05M MES, pH 6.0, additive: 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.60 Å R-free 0.260
2ZZC Crystal structure of NADP(H):human thioredoxin reductase I Deposited 2009-02-09	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain C 150–649（500 aa） Fragment：residues (-13)-499 Chain D 150–649（500 aa） Fragment：residues (-13)-499	Mutation：SeCys498Cys Mutation：SeCys498Cys	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 NAP NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6；298 K；5% PEG 3350, 0.005M Magnesium Sulfate, 0.05M MES, pH 6.0, additive: 20% 1,6 Hexanediol (0.001mL), VAPOR DIFFUSION, SITTING DROP, temperature 298K	Resolution 2.60 Å R-free 0.260
3QFA Crystal structure of the human thioredoxin reductase-thioredoxin complex Deposited 2011-01-21	Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain A 1–499（499 aa） Chain B 1–499（499 aa）	Mutation：C497S, U498C Mutation：C497S, U498C	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 GOL GLYCEROL × 6	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；297.15 K；15% PEG 6000, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297.15 K	Resolution 2.20 Å R-free 0.283
7X1R Cryo-EM structure of human thioredoxin reductase bound by Au Deposited 2022-02-24	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 152–649（498 aa） Chain B 152–649（498 aa）	Not recorded	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 AU GOLD ION × 2	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.90 Å
9UIN Human thioredoxin reductase 1 (SeCys 498 Cys) with Cu(I) Deposited 2025-04-15	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 151–649（499 aa） Chain B 151–649（499 aa）	Mutation：SEC498C Mutation：SEC498C	TXP 1,4,5,6-TETRAHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE PHOSPHATE × 2 FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 CU COPPER (II) ION × 6	ELECTRON MICROSCOPY cryo-EM buffer pH 8 cryo-EM vitrification conditions Cryogen ETHANE	Resolution 3.03 Å

8 other PDB entries and 15 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	TRXR1_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 21–519； UniProt 1–499 Author chain B； PDBConstruct 21–519； UniProt 1–499

Thioredoxin

Homo sapiens

UniProt P10599

State in the Current Structure

Assembly	Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Associated Components	Method and Experimental Conditions	Structure Quality
1	Protein heterocomplex Heteromer Protein × 4 PDB declaration: tetrameric（4） Consistent with protein copy count	Chain C； UniProt 2–105 Chain D； UniProt 2–105	Mutation：C35S, C73S	Thioredoxin reductase 1, cytoplasmic × 2 （Q16881） FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 GOL GLYCEROL × 6	X-RAY DIFFRACTION X-ray crystallization conditions：VAPOR DIFFUSION, HANGING DROP；pH 7.6；297.15 K；15% PEG 4000, pH 7.6, VAPOR DIFFUSION, HANGING DROP, temperature 297.15K	Resolution 2.60 Å R-free 0.297

Other States of the Same Protein in the Database

Other PDB	Difference from Current Entry 3QFB	Assembly / Oligomeric State	Construct	Mutations and Modifications	Ligands, Ions and Non-polymers	Method and Experimental Conditions	Structure Quality
1AIU HUMAN THIOREDOXIN (D60N MUTANT, REDUCED FORM) Deposited 1997-04-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Mutation：D60N	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 3.8；pH 3.8	Resolution 2.00 Å R-free 0.240
1AUC HUMAN THIOREDOXIN (OXIDIZED WITH DIAMIDE) Deposited 1997-08-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 5；pH 5.0	Resolution 2.10 Å R-free 0.270
1CQG HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN REF-1 (RESIDUES 59-71 OF THE P50 SUBUNIT OF NFKB), NMR, 31 STRUCTURES Deposited 1996-04-02	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Mutation：CHAIN A, C35A, C62A, C69A, C73A	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1CQH HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN REF-1 (RESIDUES 59-71 OF THE P50 SUBUNIT OF NFKB), NMR, MINIMIZED AVERAGE STRUCTURE Deposited 1996-04-02	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Mutation：CHAIN A, C35A, C62A, C69A, C73A	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1ERT HUMAN THIOREDOXIN (REDUCED FORM) Deposited 1996-02-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.70 Å R-free 0.240
1ERU HUMAN THIOREDOXIN (OXIDIZED FORM) Deposited 1996-02-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 2.10 Å R-free 0.330
1ERV HUMAN THIOREDOXIN MUTANT WITH CYS 73 REPLACED BY SER (REDUCED FORM) Deposited 1996-02-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Mutation：C73S	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.65 Å R-free 0.240
1ERW HUMAN THIOREDOXIN DOUBLE MUTANT WITH CYS 32 REPLACED BY SER AND CYS 35 REPLACED BY SER Deposited 1996-02-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Mutation：C32S, C35S	No recorded non-water small molecule	X-RAY DIFFRACTION mmCIF provides none of the parsed conditions	Resolution 1.80 Å R-free 0.260
1M7T Solution Structure and Dynamics of the Human-Escherichia coli Thioredoxin Chimera: Insights into Thermodynamic Stability Deposited 2002-07-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Insufficient information Monomer；Protein × 1 PDB declaration: monomeric	Chain A 0–65（66 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR NMR measurement conditions pH 7；308 K NMR sample composition 1 mM protein in 100 mM sodium phosphate buffer (pH 7.0), 20 M EDTA, 0.02% sodium azide, and 10% D2O. \| 90% H2O/10% D2O	Resolution not provided
1MDI HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN MUTANT HUMAN THIOREDOXIN AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN NFKB Deposited 1995-02-27	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1MDJ HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN NFKB (RESIDUES 56-68 OF THE P50 SUBUNIT OF NFKB) Deposited 1995-02-27	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1MDK HIGH RESOLUTION SOLUTION NMR STRUCTURE OF MIXED DISULFIDE INTERMEDIATE BETWEEN HUMAN THIOREDOXIN (C35A, C62A, C69A, C73A) MUTANT AND A 13 RESIDUE PEPTIDE COMPRISING ITS TARGET SITE IN HUMAN NFKB (RESIDUES 56-68 OF THE P50 SUBUNIT OF NFKB) Deposited 1995-02-27	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 2 PDB declaration: dimeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1TRS THE HIGH-RESOLUTION THREE-DIMENSIONAL SOLUTION STRUCTURES OF THE OXIDIZED AND REDUCED STATES OF HUMAN THIOREDOXIN Deposited 1994-05-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1TRU THE HIGH-RESOLUTION THREE-DIMENSIONAL SOLUTION STRUCTURES OF THE OXIDIZED AND REDUCED STATES OF HUMAN THIOREDOXIN Deposited 1994-05-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1TRV THE HIGH-RESOLUTION THREE-DIMENSIONAL SOLUTION STRUCTURES OF THE OXIDIZED AND REDUCED STATES OF HUMAN THIOREDOXIN Deposited 1994-05-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
1TRW THE HIGH-RESOLUTION THREE-DIMENSIONAL SOLUTION STRUCTURES OF THE OXIDIZED AND REDUCED STATES OF HUMAN THIOREDOXIN Deposited 1994-05-10	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
2IFQ Crystal structure of S-nitroso thioredoxin Deposited 2006-09-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 0–104（105 aa）	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, HANGING DROP；pH 7；298 K；32% PEG 4000, 50 mM sodium phosphate, ethanol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.20 Å R-free 0.206
2IFQ Crystal structure of S-nitroso thioredoxin Deposited 2006-09-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 0–104（105 aa）	Not recorded	EOH ETHANOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；32% PEG 4000, 50 mM sodium phosphate, ethanol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.20 Å R-free 0.206
2IFQ Crystal structure of S-nitroso thioredoxin Deposited 2006-09-21	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 0–104（105 aa）	Non-standard monomer：Yes (specific site not provided by mmCIF)	EOH ETHANOL × 3	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 7；298 K；32% PEG 4000, 50 mM sodium phosphate, ethanol, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.20 Å R-free 0.206
2IIY Crystal structure of S-nitroso thioredoxin Deposited 2006-09-28	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 0–104（105 aa）	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, HANGING DROP；pH 7；298 K；32% PEG 1500, 50 mM sodium phosphate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.70 Å R-free 0.239
3E3E Human Thioredoxin Double Mutant C35S,C73R Deposited 2008-08-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：C35S, C73R	P6G HEXAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 4.6；292 K；0.1 M Na acetate, pH 4.6, and 30 % (v/v) PEG 300, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 2.01 Å R-free 0.261
3E3E Human Thioredoxin Double Mutant C35S,C73R Deposited 2008-08-07	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：C35S, C73R	P6G HEXAETHYLENE GLYCOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 4.6；292 K；0.1 M Na acetate, pH 4.6, and 30 % (v/v) PEG 300, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 2.01 Å R-free 0.261
3KD0 Human thioredoxin C35S,C62S,C69S,C73S mutant showing cadmium chloride bound to the active site Deposited 2009-10-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：C35S, C62S, C69S, C73S	CL CHLORIDE ION × 4 CD CADMIUM ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.4；292 K；0.16M Cadmium Chloride, 2.0M ammonium sulphate, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 1.70 Å R-free 0.279
3KD0 Human thioredoxin C35S,C62S,C69S,C73S mutant showing cadmium chloride bound to the active site Deposited 2009-10-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–105（105 aa）	Mutation：C35S, C62S, C69S, C73S	CL CHLORIDE ION × 8 CD CADMIUM ION × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7.4；292 K；0.16M Cadmium Chloride, 2.0M ammonium sulphate, pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 292K	Resolution 1.70 Å R-free 0.279
3M9J Crystal structure of human thioredoxin C69/73S double mutant, reduced form Deposited 2010-03-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：C69S, C73S	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.6；298 K；30% PEG 4000, 200 mM ammonium acetate, 100 mM sodium citrate, 5 mM DTT, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.10 Å R-free 0.172
3M9J Crystal structure of human thioredoxin C69/73S double mutant, reduced form Deposited 2010-03-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：C69S, C73S	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.6；298 K；30% PEG 4000, 200 mM ammonium acetate, 100 mM sodium citrate, 5 mM DTT, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.10 Å R-free 0.172
3M9K Crystal structure of human thioredoxin C69/73S double-mutant, oxidized form Deposited 2010-03-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：C69S, C73S	SO4 SULFATE ION × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.6；298 K；1.8 M ammonium sulfate, 100 mM MES, 10 mM CoCl2, 2 mM DTT, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.50 Å R-free 0.211
3M9K Crystal structure of human thioredoxin C69/73S double-mutant, oxidized form Deposited 2010-03-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：C69S, C73S	SO4 SULFATE ION × 3 D1D (4S,5S)-1,2-DITHIANE-4,5-DIOL × 1	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.6；298 K；1.8 M ammonium sulfate, 100 mM MES, 10 mM CoCl2, 2 mM DTT, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.50 Å R-free 0.211
3M9K Crystal structure of human thioredoxin C69/73S double-mutant, oxidized form Deposited 2010-03-22	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa）	Mutation：C69S, C73S Mutation：C69S, C73S	SO4 SULFATE ION × 8 D1D (4S,5S)-1,2-DITHIANE-4,5-DIOL × 2	X-RAY DIFFRACTION X-ray crystallization conditions pH 5.6；298 K；1.8 M ammonium sulfate, 100 mM MES, 10 mM CoCl2, 2 mM DTT, pH 5.6, VAPOR DIFFUSION, HANGING DROP, temperature 298K	Resolution 1.50 Å R-free 0.211
3QFA Crystal structure of the human thioredoxin reductase-thioredoxin complex Deposited 2011-01-21	Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 2–105（104 aa） Chain D 2–105（104 aa）	Mutation：C35S, C73S Mutation：C35S, C73S	FAD FLAVIN-ADENINE DINUCLEOTIDE × 2 GOL GLYCEROL × 6	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 6.5；297.15 K；15% PEG 6000, 0.1M MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 297.15 K	Resolution 2.20 Å R-free 0.283
3TRX HIGH-RESOLUTION THREE-DIMENSIONAL STRUCTURE OF REDUCED RECOMBINANT HUMAN THIOREDOXIN IN SOLUTION Deposited 1990-12-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
4LL1 The structure of the TRX and TXNIP complex Deposited 2013-07-09	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：C35A Mutation：C35A	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；294.15 K；0.16M tri-sodium citrate, 16% PEG3350, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 294.15K	Resolution 2.00 Å R-free 0.288
4LL4 The structure of the TRX and TXNIP complex Deposited 2013-07-09	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain B 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：C35A Mutation：C35A	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 6.5；294.15 K；0.16M tri-sodium citrate, 16% PEG3350, pH 6.5, VAPOR DIFFUSION, SITTING DROP, temperature 294.15K	Resolution 2.70 Å R-free 0.264
4OO4 Crystal Structure of Human Thioredoxin Mutant Deposited 2014-01-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：Q63A, C69S, C73S	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4；289 K；20% PEG 3350, 0.1 M sodium acetate, 2 mM DTT, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 289K	Resolution 0.97 Å R-free 0.165
4OO4 Crystal Structure of Human Thioredoxin Mutant Deposited 2014-01-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：Q63A, C69S, C73S	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4；289 K；20% PEG 3350, 0.1 M sodium acetate, 2 mM DTT, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 289K	Resolution 0.97 Å R-free 0.165
4OO4 Crystal Structure of Human Thioredoxin Mutant Deposited 2014-01-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 1–105（105 aa） Chain B 1–105（105 aa）	Mutation：Q63A, C69S, C73S Mutation：Q63A, C69S, C73S	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, HANGING DROP；pH 4；289 K；20% PEG 3350, 0.1 M sodium acetate, 2 mM DTT, pH 4.0, VAPOR DIFFUSION, HANGING DROP, temperature 289K	Resolution 0.97 Å R-free 0.165
4OO5 Crystal Structure of S-nitrosated Human Thioredoxin Mutant Deposited 2014-01-30	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：C69S, C73S 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, HANGING DROP；pH 4；289 K；21% PEG 3350, 0.1 M sodium acetate, pH 4, VAPOR DIFFUSION, HANGING DROP, temperature 289K	Resolution 1.54 Å R-free 0.248
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POK Crystal structures of thioredoxin with mesna at 2.5A resolution Deposited 2014-02-25	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 8.5；293 K；20% ethanol, 0.1 M Tris, 60 mg/mL Trx protein, pH 8.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.52 Å R-free 0.296
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POL Crystal structures of thioredoxin with mesna at 2.8A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 4	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；20% PEG3350, 0.2 M KCl, 60 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 2.80 Å R-free 0.312
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain B 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 3 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain C 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 4 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 5 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4POM Crystal structures of thioredoxin with mesna at 1.85A resolution Deposited 2014-02-26	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 6 Protein homooligomer Homooligomer；Protein × 4 PDB declaration: tetrameric	Chain A 1–105（105 aa） Chain B 1–105（105 aa） Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K Mutation：E13K, D16K, E95K, E103K	COM 1-THIOETHANESULFONIC ACID × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；293 K；28% PEG3350, 0.2M KCl, 160 mg/mL Trx protein, pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 293K	Resolution 1.85 Å R-free 0.261
4PUF Complex between the Salmonella T3SS effector SlrP and its human target thioredoxin-1 Deposited 2014-03-13	Different construct Different mutation/modification Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein heterocomplex Heteromer；Protein × 4 PDB declaration: tetrameric	Chain C 1–105（105 aa） Chain D 1–105（105 aa）	Not recorded	No recorded non-water small molecule	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION；pH 7.8；291 K；15% PEG 4000, 0.2M NaCl, 0.1M MgCl2, 0.1M Hepes, 216 M SlrP, 430 M Trx1, pH 7.8, VAPOR DIFFUSION, temperature 291K	Resolution 3.30 Å R-free 0.308
4TRX HIGH-RESOLUTION THREE-DIMENSIONAL STRUCTURE OF REDUCED RECOMBINANT HUMAN THIOREDOXIN IN SOLUTION Deposited 1990-12-17	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental method Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 1–104（104 aa）	Not recorded	No recorded non-water small molecule	SOLUTION NMR mmCIF provides none of the parsed conditions	Resolution not provided
5DQY A fully oxidized human thioredoxin Deposited 2015-09-15	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 1 Protein monomer Monomer；Protein × 1 PDB declaration: monomeric	Chain A 2–105（104 aa）	Not recorded	BEZ BENZOIC ACID × 1 CL CHLORIDE ION × 1 GOL GLYCEROL × 1	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；294.15 K；Ammonium citrate, Bis-Tris propane	Resolution 1.40 Å R-free 0.209
5DQY A fully oxidized human thioredoxin Deposited 2015-09-15	Different construct Different mutation/modification Different oligomeric state Different ligand/ion Different experimental conditions Different structure-quality metrics	Assembly 2 Protein homooligomer Homooligomer；Protein × 2 PDB declaration: dimeric	Chain A 2–105（104 aa）	Not recorded	BEZ BENZOIC ACID × 2 CL CHLORIDE ION × 2 GOL GLYCEROL × 2	X-RAY DIFFRACTION X-ray crystallization conditions VAPOR DIFFUSION, SITTING DROP；pH 7；294.15 K；Ammonium citrate, Bis-Tris propane	Resolution 1.40 Å R-free 0.209

34 other PDB entries and 59 assemblies. Open the comparison page and filter oligomeric states

View Construct and Data Evidence

UniProt name	THIO_HUMAN
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain C； PDBConstruct 13–116； UniProt 2–105 Author chain D； PDBConstruct 13–116； UniProt 2–105

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

Download Download SAXS (.dat) P(r) (.pr.out) CIF

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	3qfb
Deposition date deposition_date	2011-01-21
Structure title title	Crystal structure of the human thioredoxin reductase-thioredoxin complex
Keywords keywords	;Protein-Protein Complex, Rossmann Fold, Thioredoxin fold, homodimeric pyridine nucleotide disulfide oxidoreductase, electron transport, OXIDOREDUCTASE ;; OXIDOREDUCTASE
Experimental Method method	X-RAY DIFFRACTION

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3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

Radius of gyration Rg (Guinier) rg_guinier	34.36 Å
Radius of gyration Rg (electron density) rg_electron	34.02 Å
Forward intensity I(0) i0	271116000.00
Molecular weight molecular_weight	133520.0 kDa
Excluded volume excluded_volume	167440 Å³
Envelope volume envelope_volume	208390 Å³
Hydration-shell volume shell_volume	50840 Å³
Envelope diameter envelope_diameter	123.3 Å
Shell Rg shell_rg	40.89 Å
Envelope Rg envelope_rg	34.14 Å
Shape Rg shape_rg	34.03 Å
Total Rg total_rg	34.48 Å
Total atoms total_atoms	9380
Residues n_residues	1196
Spherical-harmonic order n_harmonics	20
q range q_range	— – 0.5000 Å⁻¹
Data points n_points	101
Shell type shell_type	directional
Solvent electron density solvent_density	0.3340 e/Å³
Shell contrast contrast_shell	0.0300 e/Å³
CRYSOL version crysol_version	4.1.3

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4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

Maximum dimension Dmax dmax	114.1 Å
Rg (real space) rg_real	34.32 Å
Rg uncertainty (real space) rg_real_error	0.88 Å
I(0) (real space) i0_real	2.7110e+08
I(0) uncertainty (real space) i0_real_error	4.3600e+06
Rg (reciprocal space) rg_reciprocal	34.35 Å
I(0) (reciprocal space) i0_reciprocal	271100000.0000
Solution quality estimate total_estimate	0.8802
Solution quality rating solution_quality	GOOD a GOOD solution
P(r) peaks n_peaks	2
Primary peak position r_peak_primary	42.2 Å
Skewness Skewness skewness	0.353
Kurtosis Kurtosis kurtosis	-0.253
Angular range angular_range	— – 0.2300 Å⁻¹
Current regularization parameter α current_alpha	0.0000
Highest regularization parameter α highest_alpha	63050000.0000
Real-space data points n_real_points	47
GNOM version gnom_version	4.1.3
Quality Criteria quality_criteria	AN1: 0.000; Oscil: 0.835; Stabil: 1.000; Sysdev: 1.000; Positv: 1.000; Valcen: 0.999; Smooth: 0.935

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5. Crystallography and Experiment 5. Crystallography & Experiment

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6. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Description description	Thioredoxin reductase 1, cytoplasmic
Molecular weight formula_weight	56925.8 kDa
EC 编号 ec_number	1.8.1.9
Mutation mutation	C497S, U498C
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	9621

MGSSHHHHHHSSGLVPRGSHMNGPEDLPKSYDYDLIIIGGGSGGLAAAKEAAQYGKKVMVLDFVTPTPLGTRWGLGGTCVNVGCIPKKLMHQAALLGQALQDSRNYGWKVEETVKHDWDRMIEAVQNHIGSLNWGYRVALREKKVVYENAYGQFIGPHRIKATNNKGKEKIYSAERFLIATGERPRYLGIPGDKEYCISSDDLFSLPYCPGKTLVVGASYVALECAGFLAGIGLDVTVMVRSILLRGFDQDMANKIGEHMEEHGIKFIRQFVPIKVEQIEAGTPGRLRVVAQSTNSEEIIEGEYNTVMLAIGRDACTRKIGLETVGVKINEKTGKIPVTDEEQTNVPYIYAIGDILEDKVELTPVAIQAGRLLAQRLYAGSTVKCDYENVPTTVFTPLEYGACGLSEEKAVEKFGEENIEVYHSYFWPLEWTIPSRDNNKCYAKIICNTKDNERVVGFHVLGPNAGEVTQGFAAALKCGLTKKQLDSTIGIHPVCAEVFTTLSVTKRSGASILQAGSCG

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	Thioredoxin
Molecular weight formula_weight	12992.7 kDa
Mutation mutation	C35S, C73S
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	C,D

MRGSHHHHHHGSVKQIESKTAFQEALDAAGDKLVVVDFSATWCGPSKMIKPFFHSLSEKYSNVIFLEVDVDDCQDVASECEVKSMPTFQFFKKGQKVGEFSGANKEKLEATINELV

来源 Source

来源生物 organism	Homo sapiens
通用名 common_name	human
NCBI Class编号 ncbi_taxonomy_id	9606
宿主生物 host_organism	Escherichia coli

Entity 3 Entity 3 non-polymer

Description description	FLAVIN-ADENINE DINUCLEOTIDE
Molecular weight formula_weight	785.5 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 4 Entity 4 non-polymer

Description description	GLYCEROL
Molecular weight formula_weight	92.1 kDa
Source method src_method	syn
Copy count entity_count	6

Entity 5 Entity 5 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	241

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7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

Domain ID domain_id	d3qfbc1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.1 — Thioltransferase

Domain ID domain_id	d3qfbc2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

Domain ID domain_id	d3qfbd1
Class class	c — Alpha and beta proteins (a/b)
Fold Fold fold	c.47 — Thioredoxin fold
Superfamily Superfamily superfamily	c.47.1 — Thioredoxin-like
Family Family family	c.47.1.1 — Thioltransferase

Domain ID domain_id	d3qfbd2
Class class	l — Artifacts
Fold Fold fold	l.1 — Tags
Superfamily Superfamily superfamily	l.1.1 — Tags
Family Family family	l.1.1.1 — Tags

CATH v4.4 (8 domains)

Domain ID domain_id	3qfbA01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	3qfbA02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	3qfbA03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

Domain ID domain_id	3qfbB01
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	3qfbB02
Class class	3 — Alpha Beta
Architecture architecture	50 — 3-Layer(bba) Sandwich
Topology topology	50 — FAD/NAD(P)-binding domain
Homologous superfamily homologous superfamily	60 — FAD/NAD(P)-binding domain

Domain ID domain_id	3qfbB03
Class class	3 — Alpha Beta
Architecture architecture	30 — 2-Layer Sandwich
Topology topology	390 — Enolase-like; domain 1
Homologous superfamily homologous superfamily	30 — FAD/NAD-linked reductase, C-terminal dimerisation domain

Domain ID domain_id	3qfbC00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	30 — Glutaredoxin
Homologous superfamily homologous superfamily	10 — Glutaredoxin

Domain ID domain_id	3qfbD00
Class class	3 — Alpha Beta
Architecture architecture	40 — 3-Layer(aba) Sandwich
Topology topology	30 — Glutaredoxin
Homologous superfamily homologous superfamily	10 — Glutaredoxin

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8. Citations (1)

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Unit-cell length a length_a	71.270 Å
Unit-cell length b length_b	121.700 Å
Unit-cell length c length_c	73.890 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	95.33 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	4

Space group space_group	P 1 21 1
Space-group number int_tables_number	4
Crystal system crystal_system	—

Resolution resolution	2.600 Å
Low-resolution limit resolution_low	49.070 Å
R factor r_factor	0.2350
R_work r_work	0.2350
R_free r_free	0.2970

fit	/app/data/saxs_computation/qf/3qfb/3qfb.fit
pddf	/app/data/pr_computation/qf/3qfb/3qfb.pr.out
profile	/app/data/saxs_computation/qf/3qfb/3qfb.dat

Crystal structure of the human thioredoxin reductase-thioredoxin complex

1. Protein Identity and Related Structures Protein Identity & Related Structures

Thioredoxin reductase 1, cytoplasmic

State in the Current Structure

Other States of the Same Protein in the Database

Thioredoxin

State in the Current Structure

Other States of the Same Protein in the Database

SAXS scattering curve SAXS Profile

P(r) Distance Distribution P(r) Distribution

2. Structure Basics 2. Structure Basics

3. SAXS Parameters (CRYSOL theoretical calculation) 3. SAXS Parameters (CRYSOL)

4. P(r) Distance Distribution (GNOM inversion) 4. P(r) Analysis (GNOM)

5. Crystallography and Experiment 5. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

6. Entities and Polymers Entities & Polymers (5)

Entity 1 Entity 1 polymer

Polymer Polymer

来源 Source

Entity 2 Entity 2 polymer

Polymer Polymer

来源 Source

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 non-polymer

Entity 5 Entity 5 water

7. Fold Classification (SCOP + CATH) 12 domains

SCOP 2.08 (4 domains)

CATH v4.4 (8 domains)

8. Citations (1)

9. Files and Curves (10)

Files (7)

Curves (3)