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- PDB-8iis: MsmUdgX H109S/R184A double mutant -

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Basic information

Entry
Database: PDB / ID: 8iis
TitleMsmUdgX H109S/R184A double mutant
ComponentsType-4 uracil-DNA glycosylase
KeywordsDNA BINDING PROTEIN / UdgX / H109S / R184A / mutant / protein
Function / homology
Function and homology information


uracil DNA N-glycosylase activity / 4 iron, 4 sulfur cluster binding / DNA repair / metal ion binding
Similarity search - Function
Uracil-DNA glycosylase family 4 / : / Uracil DNA glycosylase superfamily / UreE urease accessory protein, C-terminal domain / Uracil-DNA glycosylase-like / Uracil DNA glycosylase superfamily / Uracil-DNA glycosylase-like domain superfamily
Similarity search - Domain/homology
IRON/SULFUR CLUSTER / Type-4 uracil-DNA glycosylase
Similarity search - Component
Biological speciesMycolicibacterium smegmatis MC2 155 (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.61 Å
AuthorsAroli, S.
Funding support India, 2items
OrganizationGrant numberCountry
Department of Biotechnology (DBT, India)BT/PR28058 India
Department of Biotechnology (DBT, India)BT/PR13522 India
CitationJournal: Nucleic Acids Res. / Year: 2023
Title: Mutational and structural analyses of UdgX: insights into the active site pocket architecture and its evolution.
Authors: Aroli, S. / Woo, E.J. / Gopal, B. / Varshney, U.
History
DepositionFeb 24, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 21, 2023Provider: repository / Type: Initial release
Revision 1.1Aug 2, 2023Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.2May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Type-4 uracil-DNA glycosylase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)22,9672
Polymers22,6161
Non-polymers3521
Water3,693205
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area380 Å2
ΔGint-20 kcal/mol
Surface area10790 Å2
MethodPISA
Unit cell
Length a, b, c (Å)36.360, 51.650, 54.580
Angle α, β, γ (deg.)90.00, 105.00, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein Type-4 uracil-DNA glycosylase


Mass: 22615.719 Da / Num. of mol.: 1 / Mutation: H109S, R184A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycolicibacterium smegmatis MC2 155 (bacteria)
Strain: MC2 155 / Gene: MSMEG_0265 / Plasmid: pET14b / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): Rosetta / References: UniProt: A0QP43, uracil-DNA glycosylase
#2: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER


Mass: 351.640 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4S4 / Feature type: SUBJECT OF INVESTIGATION
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 205 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.02 Å3/Da / Density % sol: 43.81 %
Crystal growTemperature: 295 K / Method: microbatch / pH: 7
Details: 2.0M Ammonium citrate tribasic pH7.0, 0.1M BIS-TRIS propane pH7.0
PH range: 6.8-7.2

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: ROTATING ANODE / Type: BRUKER AXS MICROSTAR / Wavelength: 1.54179 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: Apr 23, 2021
RadiationMonochromator: M / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54179 Å / Relative weight: 1
ReflectionResolution: 1.6→28.11 Å / Num. obs: 24280 / % possible obs: 94.3 % / Redundancy: 4.9 % / CC1/2: 0.996 / Rmerge(I) obs: 0.04 / Rpim(I) all: 0.031 / Rrim(I) all: 0.051 / Net I/σ(I): 28.2
Reflection shellResolution: 1.6→1.63 Å / Redundancy: 4.2 % / Rmerge(I) obs: 0.059 / Mean I/σ(I) obs: 16.8 / Num. unique obs: 831 / CC1/2: 0.985 / Rpim(I) all: 0.046 / Rrim(I) all: 0.076 / % possible all: 66.2

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Processing

Software
NameVersionClassification
PHENIX1.2refinement
Aimlessdata scaling
iMOSFLMdata reduction
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.61→23.48 Å / SU ML: 0.12 / Cross valid method: THROUGHOUT / σ(F): 1.96 / Phase error: 15.07 / Stereochemistry target values: MLHL
RfactorNum. reflection% reflection
Rfree0.1703 1215 5.01 %
Rwork0.1529 --
obs0.1538 24272 95.69 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Refinement stepCycle: LAST / Resolution: 1.61→23.48 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1559 0 8 205 1772
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0191643
X-RAY DIFFRACTIONf_angle_d1.7462238
X-RAY DIFFRACTIONf_dihedral_angle_d6.025237
X-RAY DIFFRACTIONf_chiral_restr0.115256
X-RAY DIFFRACTIONf_plane_restr0.012298
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.61-1.680.19581320.14782506X-RAY DIFFRACTION94
1.68-1.750.17931620.1382514X-RAY DIFFRACTION95
1.75-1.840.16871310.13382528X-RAY DIFFRACTION96
1.84-1.960.17051280.13682563X-RAY DIFFRACTION96
1.96-2.110.14691320.13382610X-RAY DIFFRACTION97
2.11-2.320.16351300.1472604X-RAY DIFFRACTION98
2.32-2.660.16671320.15682654X-RAY DIFFRACTION99
2.66-3.350.19581520.16962671X-RAY DIFFRACTION99
3.35-23.480.15471160.1672407X-RAY DIFFRACTION88

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