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- PDB-1tdf: CRYSTAL STRUCTURE OF ESCHERICHIA COLI THIOREDOXIN REDUCTASE REFIN... -

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Basic information

Entry
Database: PDB / ID: 1tdf
TitleCRYSTAL STRUCTURE OF ESCHERICHIA COLI THIOREDOXIN REDUCTASE REFINED AT 2 ANGSTROM RESOLUTION: IMPLICATIONS FOR A LARGE CONFORMATIONAL CHANGE DURING CATALYSIS
ComponentsTHIOREDOXIN REDUCTASE
KeywordsOXIDOREDUCTASE(FLAVOENZYME)
Function / homology
Function and homology information


thioredoxin-disulfide reductase complex / thioredoxin-disulfide reductase / thioredoxin-disulfide reductase (NADPH) activity / removal of superoxide radicals / cell redox homeostasis / flavin adenine dinucleotide binding / cytosol
Similarity search - Function
Thioredoxin reductase / Pyridine nucleotide-disulphide oxidoreductase, class-II, active site / Pyridine nucleotide-disulphide oxidoreductases class-II active site. / Pyridine nucleotide-disulphide oxidoreductase / FAD/NAD(P)-binding domain / Pyridine nucleotide-disulphide oxidoreductase / FAD/NAD(P)-binding domain / FAD/NAD(P)-binding domain / 3-Layer(bba) Sandwich / FAD/NAD(P)-binding domain superfamily / Alpha Beta
Similarity search - Domain/homology
FLAVIN-ADENINE DINUCLEOTIDE / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / Thioredoxin reductase
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / Resolution: 2.3 Å
AuthorsWaksman, G. / Krishna, T.S.R. / Williams Junior, C.H. / Kuriyan, J.
CitationJournal: J.Mol.Biol. / Year: 1994
Title: Crystal structure of Escherichia coli thioredoxin reductase refined at 2 A resolution. Implications for a large conformational change during catalysis.
Authors: Waksman, G. / Krishna, T.S.R. / Williams Jr., C.H. / Kuriyan, J.
History
DepositionJan 14, 1994Processing site: BNL
Revision 1.0Nov 30, 1994Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Feb 14, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.process_site / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: THIOREDOXIN REDUCTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)35,6563
Polymers34,1271
Non-polymers1,5292
Water2,846158
1
A: THIOREDOXIN REDUCTASE
hetero molecules

A: THIOREDOXIN REDUCTASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)71,3126
Polymers68,2552
Non-polymers3,0584
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation7_555y,x,-z1
Buried area11150 Å2
ΔGint-44 kcal/mol
Surface area23670 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)123.800, 123.800, 81.560
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number182
Space group name H-MP6322
Atom site foot note1: CIS PROLINE - PRO 93

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Components

#1: Protein THIOREDOXIN REDUCTASE /


Mass: 34127.277 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / References: UniProt: P0A9P4, EC: 1.6.4.5
#2: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE / Flavin adenine dinucleotide


Mass: 785.550 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#3: Chemical ChemComp-NAP / NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE / 2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE / Nicotinamide adenine dinucleotide phosphate


Mass: 743.405 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C21H28N7O17P3
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 158 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.64 Å3/Da / Density % sol: 53.47 %
Crystal grow
*PLUS
Method: vapor diffusion / Details: 'Kuriyan, J.', (1989) J. Biol. Chem., 264, 12752. / PH range low: 7 / PH range high: 6.5
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
135 %PEG33001reservoir
2200 mMammonium sulfate1reservoiror 200 mM lithium sulfate
350 mMMES1reservoir
420 mg/mlprotein1drop
560 mMdithiothreitol1drop

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Data collection

RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2.3 Å / Lowest resolution: 20 Å / Num. obs: 17238 / % possible obs: 94 % / Num. measured all: 54650 / Rmerge(I) obs: 0.056

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2.3→6 Å / σ(F): 2 /
RfactorNum. reflection
Rwork0.179 -
obs0.179 16181
Refinement stepCycle: LAST / Resolution: 2.3→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2394 0 101 158 2653
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.009
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.3
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Rfactor obs: 0.179
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 2.3

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