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- PDB-6ktx: The wildtype structure of EanB -

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Basic information

Entry
Database: PDB / ID: 6ktx
TitleThe wildtype structure of EanB
ComponentsSulfurtransferase
KeywordsTRANSFERASE / sulfur transferase / ergothioneine / anearobic
Function / homology
Function and homology information


thiosulfate-cyanide sulfurtransferase activity / metal ion binding
Similarity search - Function
: / Rhodanese C-terminal signature. / Thiosulphate sulfurtransferase, conserved site / Rhodanese Homology Domain / Rhodanese-like domain / Rhodanese domain profile. / Rhodanese-like domain superfamily / Rhodanese-like domain
Similarity search - Domain/homology
DI(HYDROXYETHYL)ETHER / TRIETHYLENE GLYCOL / Sulfurtransferase
Similarity search - Component
Biological speciesChlorobium limicola (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.189 Å
AuthorsWu, L. / Liu, P.H. / Zhou, J.H.
CitationJournal: Acs Catalysis / Year: 2020
Title: Single-Step Replacement of an Unreactive C-H Bond by a C-S Bond Using Polysulfide as the Direct Sulfur Source in the Anaerobic Ergothioneine Biosynthesis
Authors: Cheng, R. / Wu, L. / Lai, R. / Peng, C. / Naowarojna, N. / Hu, W. / Li, X. / Whelan, S.A. / Lee, N. / Lopez, J. / Zhao, C. / Yong, Y. / Xue, J. / Jiang, X. / Grinstaff, M.W. / Deng, Z. / ...Authors: Cheng, R. / Wu, L. / Lai, R. / Peng, C. / Naowarojna, N. / Hu, W. / Li, X. / Whelan, S.A. / Lee, N. / Lopez, J. / Zhao, C. / Yong, Y. / Xue, J. / Jiang, X. / Grinstaff, M.W. / Deng, Z. / Chen, J. / Cui, Q. / Zhou, J.H. / Liu, P.
History
DepositionAug 29, 2019Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 26, 2020Provider: repository / Type: Initial release
Revision 1.1Nov 22, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Sulfurtransferase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)53,39715
Polymers52,2341
Non-polymers1,16314
Water4,035224
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area130 Å2
ΔGint-12 kcal/mol
Surface area18450 Å2
MethodPISA
Unit cell
Length a, b, c (Å)88.583, 111.387, 60.285
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP21212
Space group name HallP22ab
Symmetry operation#1: x,y,z
#2: x+1/2,-y+1/2,-z
#3: -x+1/2,y+1/2,-z
#4: -x,-y,z

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Sulfurtransferase


Mass: 52234.137 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Chlorobium limicola (bacteria) / Strain: DSM 245 / NBRC 103803 / 6330 / Gene: Clim_1149 / Production host: Escherichia coli K-12 (bacteria) / Strain (production host): K-12 / References: UniProt: B3ECE3

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Non-polymers , 7 types, 238 molecules

#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Cl
#4: Chemical ChemComp-PEG / DI(HYDROXYETHYL)ETHER


Mass: 106.120 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C4H10O3
#5: Chemical ChemComp-MPO / 3[N-MORPHOLINO]PROPANE SULFONIC ACID


Mass: 209.263 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C7H15NO4S / Comment: pH buffer*YM
#6: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C2H6O2
#7: Chemical ChemComp-PGE / TRIETHYLENE GLYCOL


Mass: 150.173 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H14O4
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 224 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN

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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: 2.83 Å3/Da / Density % sol: 56.53 %
Crystal growTemperature: 291 K / Method: vapor diffusion, sitting drop
Details: 0.02M MgCl2, 0.1M Hepes 7.5, 22%w/v polyacrylic acid sodium salt 5100

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRF / Beamline: BL18U1 / Wavelength: 0.979 Å
DetectorType: DECTRIS PILATUS3 S 6M / Detector: PIXEL / Date: Jan 15, 2019
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.979 Å / Relative weight: 1
ReflectionResolution: 2.17→50 Å / Num. obs: 30763 / % possible obs: 99.6 % / Redundancy: 9.4 % / CC1/2: 0.971 / Net I/σ(I): 9.5
Reflection shellResolution: 2.17→2.21 Å / Num. unique obs: 1457 / CC1/2: 0.677 / % possible all: 95.2

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Processing

Software
NameVersionClassification
HKL-3000data collection
HKL-3000data reduction
HKL-3000data scaling
PHENIXphasing
PHENIX1.12refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3IPP

3ipp


Resolution: 2.189→47.149 Å / Cross valid method: FREE R-VALUE
RfactorNum. reflection% reflection
Rfree0.2133 --
Rwork0.1716 --
obs-30108 95.61 %
Refinement stepCycle: LAST / Resolution: 2.189→47.149 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3458 0 71 224 3753
LS refinement shellResolution: 2.1885→2.2668 Å /
Rfactor% reflection
Rfree0.2709 -
Rwork0.2222 -
obs-69 %

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