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- PDB-2cvb: Crystal structure of a thioredoxin-like protein from Thermus ther... -

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Basic information

Entry
Database: PDB / ID: 2cvb
TitleCrystal structure of a thioredoxin-like protein from Thermus thermophilus HB8
Componentsprobable thiol-disulfide isomerase/thioredoxin
KeywordsSTRUCTURAL GENOMICS / UNKNOWN FUNCTION / Thioredoxin / Redox protein / RIKEN Structural Genomics/Proteomics Initiative / RSGI
Function / homology
Function and homology information


antioxidant activity / isomerase activity / oxidoreductase activity
Similarity search - Function
: / Alkyl hydroperoxide reductase subunit C/ Thiol specific antioxidant / AhpC/TSA family / Thioredoxin domain profile. / Thioredoxin domain / Glutaredoxin / Glutaredoxin / Thioredoxin-like superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Probable thiol-disulfide isomerase/thioredoxin
Similarity search - Component
Biological speciesThermus thermophilus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 1.8 Å
AuthorsEbihara, A. / Yokoyama, S. / Kuramitsu, S. / RIKEN Structural Genomics/Proteomics Initiative (RSGI)
CitationJournal: To be Published
Title: Crystal structure of a thioredoxin-like protein from Thermus thermophilus HB8
Authors: Ebihara, A. / Yokoyama, S. / Kuramitsu, S.
History
DepositionJun 1, 2005Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Dec 1, 2005Provider: repository / Type: Initial release
Revision 1.1Apr 30, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Source and taxonomy / Version format compliance

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: probable thiol-disulfide isomerase/thioredoxin


Theoretical massNumber of molelcules
Total (without water)21,5311
Polymers21,5311
Non-polymers00
Water2,144119
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)73.420, 73.420, 96.910
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212

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Components

#1: Protein probable thiol-disulfide isomerase/thioredoxin / Thioredoxin-like protein


Mass: 21531.039 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Thermus thermophilus (bacteria) / Strain: HB8 / Plasmid: pET11a / Production host: Escherichia coli (E. coli) / Strain (production host): B834(DE3) / References: UniProt: Q5SKQ0
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 119 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 3.1 Å3/Da / Density % sol: 59.4 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 5.2
Details: 22% PEG3350, 0.3M diammonium hydrogen citrate, pH 5.2, VAPOR DIFFUSION, SITTING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SPring-8 / Beamline: BL26B2 / Wavelength: 0.90000, 0.97919, 0.97942
DetectorType: RIGAKU JUPITER 210 / Detector: CCD / Date: May 31, 2004
RadiationMonochromator: SI DOUBLE-CRYSTAL / Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
10.91
20.979191
30.979421
ReflectionResolution: 1.8→27.18 Å / Num. all: 23975 / % possible obs: 95.1 % / Redundancy: 9.54 % / Biso Wilson estimate: 20.6 Å2 / Rmerge(I) obs: 0.051 / Net I/σ(I): 26.9
Reflection shellResolution: 1.8→1.86 Å / Redundancy: 9.58 % / Rmerge(I) obs: 0.188 / Mean I/σ(I) obs: 10.1 / % possible all: 97.3

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Processing

Software
NameVersionClassification
CNS1.1refinement
CrystalCleardata reduction
CrystalCleardata scaling
SOLVEphasing
RefinementMethod to determine structure: MAD / Resolution: 1.8→24.25 Å / Rfactor Rfree error: 0.005 / Data cutoff high absF: 1528471.62 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.227 2372 9.9 %RANDOM
Rwork0.212 ---
all0.213 ---
obs0.212 23953 94.9 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 26.7948 Å2 / ksol: 0.38742 e/Å3
Displacement parametersBiso mean: 22.6 Å2
Baniso -1Baniso -2Baniso -3
1--0.93 Å20 Å20 Å2
2---0.93 Å20 Å2
3---1.85 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.24 Å0.21 Å
Luzzati d res low-5 Å
Luzzati sigma a0.14 Å0.09 Å
Refinement stepCycle: LAST / Resolution: 1.8→24.25 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1500 0 0 119 1619
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.005
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.3
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d24.9
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d1.12
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.121.5
X-RAY DIFFRACTIONc_mcangle_it1.642
X-RAY DIFFRACTIONc_scbond_it22
X-RAY DIFFRACTIONc_scangle_it2.942.5
LS refinement shellResolution: 1.8→1.91 Å / Rfactor Rfree error: 0.014 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.268 387 9.7 %
Rwork0.239 3605 -
obs--97.3 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein.paramprotein.top
X-RAY DIFFRACTION2water.paramwater.top

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