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- PDB-6nvc: Crystal structure of Mycobacterium tuberculosis dethiobiotin synt... -

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Basic information

Entry
Database: PDB / ID: 6nvc
TitleCrystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with fragment analogue 6
ComponentsATP-dependent dethiobiotin synthetase BioD
KeywordsLIGASE / TRANSFERASE / enzyme / synthetase / nucleotide triphosphate binding
Function / homology
Function and homology information


dethiobiotin synthase / dethiobiotin synthase activity / biotin biosynthetic process / magnesium ion binding / ATP binding / cytosol
Similarity search - Function
Dethiobiotin synthase BioD / AAA domain / P-loop containing nucleotide triphosphate hydrolases / Rossmann fold / P-loop containing nucleoside triphosphate hydrolase / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-L67 / Dethiobiotin synthetase BioD
Similarity search - Component
Biological speciesMycobacterium tuberculosis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.25 Å
AuthorsThompson, A.P. / Polyak, S.W. / Wegener, K.L. / Bruning, J.B.
Funding support Australia, 1items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)APP1068885 Australia
CitationJournal: To Be Published
Title: Crystal structure of Mycobacterium tuberculosis dethiobiotin synthetase in complex with fragment analogue 6
Authors: Thompson, A.P. / Polyak, S.W. / Wegener, K.L. / Bruning, J.B.
History
DepositionFeb 4, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 12, 2020Provider: repository / Type: Initial release
Revision 1.1Oct 11, 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: ATP-dependent dethiobiotin synthetase BioD
B: ATP-dependent dethiobiotin synthetase BioD
C: ATP-dependent dethiobiotin synthetase BioD
D: ATP-dependent dethiobiotin synthetase BioD
hetero molecules


Theoretical massNumber of molelcules
Total (without water)94,68812
Polymers93,1434
Non-polymers1,5458
Water8,215456
1
A: ATP-dependent dethiobiotin synthetase BioD
B: ATP-dependent dethiobiotin synthetase BioD
hetero molecules


Theoretical massNumber of molelcules
Total (without water)47,3446
Polymers46,5712
Non-polymers7734
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3270 Å2
ΔGint-52 kcal/mol
Surface area16500 Å2
MethodPISA
2
C: ATP-dependent dethiobiotin synthetase BioD
D: ATP-dependent dethiobiotin synthetase BioD
hetero molecules


Theoretical massNumber of molelcules
Total (without water)47,3446
Polymers46,5712
Non-polymers7734
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3240 Å2
ΔGint-50 kcal/mol
Surface area16750 Å2
MethodPISA
Unit cell
Length a, b, c (Å)54.870, 104.250, 150.050
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein
ATP-dependent dethiobiotin synthetase BioD / DTB synthetase / DTBS / Dethiobiotin synthase


Mass: 23285.664 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (bacteria)
Strain: ATCC 25618 / H37Rv / Gene: bioD, Rv1570, MTCY336.33c / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: P9WPQ5, dethiobiotin synthase
#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-L67 / {(1S,2R)-2-[4-(carboxymethyl)benzene-1-carbonyl]cyclopentyl}acetic acid


Mass: 290.311 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C16H18O5
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 456 / 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: 2.3 Å3/Da / Density % sol: 46.61 %
Crystal growTemperature: 289.15 K / Method: vapor diffusion, hanging drop
Details: 1.2 - 1.7 M ammonium sulfate, 0.1 M Tris pH 8, 10-15% glycerol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.9537 Å
DetectorType: ADSC QUANTUM 210r / Detector: CCD / Date: Nov 15, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9537 Å / Relative weight: 1
ReflectionResolution: 2.25→54.87 Å / Num. obs: 39223 / % possible obs: 94.5 % / Redundancy: 7.3 % / CC1/2: 0.979 / Rmerge(I) obs: 0.227 / Rpim(I) all: 0.084 / Rrim(I) all: 0.243 / Net I/σ(I): 5.9
Reflection shell

Diffraction-ID: 1

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. unique obsCC1/2Rpim(I) allRrim(I) all% possible all
2.25-2.3261.5434930.3270.6451.67793.1
9-54.8780.067560.9980.0210.06499.5

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassification
PHENIX(1.11.1_2575)refinement
MOSFLMdata reduction
Aimless0.7.2data scaling
PHASERphasing
PDB_EXTRACT3.24data extraction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6CVE

6cve


Resolution: 2.25→46.197 Å / SU ML: 0.39 / Cross valid method: THROUGHOUT / σ(F): 1.35 / Phase error: 28.89
RfactorNum. reflection% reflection
Rfree0.2736 1953 4.99 %
Rwork0.194 --
obs0.198 39138 93.83 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso max: 97.29 Å2 / Biso mean: 36.4362 Å2 / Biso min: 14.58 Å2
Refinement stepCycle: final / Resolution: 2.25→46.197 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6277 0 104 456 6837
Biso mean--36.96 36.63 -
Num. residues----908
LS refinement shellResolution: 2.25→2.3063 Å
RfactorNum. reflection% reflection
Rfree0.4092 --
Rwork0.2944 --
obs-2582 92.1 %

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