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- PDB-2tir: CRYSTAL STRUCTURE ANALYSIS OF A MUTANT ESCHERICHIA COLI THIOREDOX... -

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Basic information

Entry
Database: PDB / ID: 2tir
TitleCRYSTAL STRUCTURE ANALYSIS OF A MUTANT ESCHERICHIA COLI THIOREDOXIN IN WHICH LYSINE 36 IS REPLACED BY GLUTAMIC ACID
ComponentsTHIOREDOXIN
KeywordsELECTRON TRANSPORT
Function / homology
Function and homology information


DNA polymerase processivity factor activity / protein-disulfide reductase activity / cell redox homeostasis / cytosol / cytoplasm
Similarity search - Function
Thioredoxin / Thioredoxin / Thioredoxin, conserved site / Thioredoxin family active site. / Thioredoxin domain profile. / Thioredoxin domain / Glutaredoxin / Glutaredoxin / Thioredoxin-like superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
COPPER (II) ION / Thioredoxin 1
Similarity search - Component
Biological speciesEscherichia coli (E. coli)
MethodX-RAY DIFFRACTION / Resolution: 2 Å
AuthorsNikkola, M. / Gleason, F.K. / Fuchs, J.A. / Eklund, H.
Citation
Journal: Biochemistry / Year: 1993
Title: Crystal structure analysis of a mutant Escherichia coli thioredoxin in which lysine 36 is replaced by glutamic acid.
Authors: Nikkola, M. / Gleason, F.K. / Fuchs, J.A. / Eklund, H.
#1: Journal: J.Mol.Biol. / Year: 1990
Title: The Refined Structure of Coli Thioredoxin
Authors: Katti, S.K. / Lemaster, D.M. / Eklund, H.
History
DepositionJan 10, 1993-
Revision 1.0Oct 31, 1993Provider: repository / Type: Initial release
Revision 1.1Mar 25, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: THIOREDOXIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,7512
Polymers11,6871
Non-polymers641
Water1,44180
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)50.800, 26.800, 80.700
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Atom site foot note1: CIS PROLINE - PRO 76
2: THE BINDING OF THE CUPRIC ION IS PROBLEMATIC. CLEARLY THE RESIDUES INDICATED DO PARTICIPATE IN THE BINDING. THIS PART OF THE STRUCTURE IS BEING IMPROVED. (CU 109)

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Components

#1: Protein THIOREDOXIN /


Mass: 11687.321 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Escherichia coli (E. coli) / References: UniProt: P0AA25
#2: Chemical ChemComp-CU / COPPER (II) ION / Copper


Mass: 63.546 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Cu
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 80 / 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: 2.35 Å3/Da / Density % sol: 47.64 %
Crystal grow
*PLUS
Temperature: 4 ℃ / pH: 4.8 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
10.015 mMsodium acetate1reservoir
217 %PEG60001reservoir
31 mMcupric acetate1reservoir

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Data collection

Reflection
*PLUS
Highest resolution: 2 Å / Num. obs: 7477 / Num. measured all: 31697 / Rmerge(I) obs: 0.087

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementRfactor Rwork: 0.199 / Rfactor obs: 0.199 / Highest resolution: 2 Å
Refinement stepCycle: LAST / Highest resolution: 2 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms822 0 1 80 903
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.017
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_deg2.95
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
Refinement
*PLUS
Highest resolution: 2 Å / Lowest resolution: 7 Å / Rfactor obs: 0.199
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Type: x_angle_d / Dev ideal: 2.95

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