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- PDB-3avo: Pantothenate kinase from Mycobacterium tuberculosis (MtPanK) in c... -

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Basic information

Entry
Database: PDB / ID: 3avo
TitlePantothenate kinase from Mycobacterium tuberculosis (MtPanK) in complex with Pantothenate
ComponentsPantothenate kinase
KeywordsTRANSFERASE/TRANSFERASE INHIBITOR / HOMODIMER / COA BIOSYNTHESIS / NUCLEOTIDE BINDING / TRANSFERASE-TRANSFERASE INHIBITOR complex
Function / homology
Function and homology information


pantothenate kinase / pantothenate kinase activity / coenzyme A biosynthetic process / phosphorylation / ATP binding / plasma membrane / cytoplasm
Similarity search - Function
Pantothenate kinase / Phosphoribulokinase/uridine kinase / Phosphoribulokinase / Uridine kinase family / P-loop containing nucleotide triphosphate hydrolases / P-loop containing nucleoside triphosphate hydrolase / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
CITRATE ANION / PANTOTHENOIC ACID / Pantothenate kinase / Pantothenate kinase
Similarity search - Component
Biological speciesMycobacterium tuberculosis (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.55 Å
AuthorsChetnani, B. / Kumar, P. / Abhinav, K.V. / Chhibber, M. / Surolia, A. / Vijayan, M.
CitationJournal: Acta Crystallogr.,Sect.D / Year: 2011
Title: Location and conformation of pantothenate and its derivatives in Mycobacterium tuberculosis pantothenate kinase: insights into enzyme action
Authors: Chetnani, B. / Kumar, P. / Abhinav, K.V. / Chhibber, M. / Surolia, A. / Vijayan, M.
History
DepositionMar 6, 2011Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 17, 2011Provider: repository / Type: Initial release
Revision 1.1Nov 2, 2011Group: Database references
Revision 1.2Nov 1, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / struct_ref_seq_dif / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Pantothenate kinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)38,13312
Polymers36,8961
Non-polymers1,23711
Water3,459192
1
A: Pantothenate kinase
hetero molecules

A: Pantothenate kinase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)76,26724
Polymers73,7922
Non-polymers2,47422
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation4_555y,x,-z1
Buried area3960 Å2
ΔGint-30 kcal/mol
Surface area27320 Å2
MethodPISA
Unit cell
Length a, b, c (Å)103.390, 103.390, 91.000
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number152
Space group name H-MP3121

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Components

#1: Protein Pantothenate kinase / / MtPanK / Pantothenic acid kinase


Mass: 36896.129 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mycobacterium tuberculosis (bacteria) / Strain: H37Rv / Gene: coaA, Rv1092c / Plasmid: PET-28a(+)(NOVAGEN) / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 (DE3)
References: UniProt: P63810, UniProt: P9WPA7*PLUS, pantothenate kinase
#2: Chemical ChemComp-FLC / CITRATE ANION / Citric acid


Mass: 189.100 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H5O7
#3: Chemical ChemComp-PAU / PANTOTHENOIC ACID / N-[(2R)-2,4-DIHYDROXY-3,3-DIMETHYLBUTANOYL]-BETA-ALANINE / Pantothenic acid


Type: peptide-like / Mass: 219.235 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H17NO5
#4: Chemical
ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: C3H8O3
#5: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 192 / 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: 3.81 Å3/Da / Density % sol: 67.68 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 1.4-1.8M tri-sodium citrate, 0.05-0.1M sodium acetate, 10% glycerol, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: BRUKER AXS MICROSTAR / Wavelength: 1.54 Å
DetectorType: MAR scanner 345 mm plate / Detector: IMAGE PLATE / Date: May 1, 2009 / Details: Mirrors
RadiationMonochromator: OSMIC MIRROR / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.55→40 Å / Num. obs: 18703 / % possible obs: 99.9 % / Observed criterion σ(I): 0 / Redundancy: 5 % / Biso Wilson estimate: 50.2 Å2 / Rmerge(I) obs: 0.078 / Net I/σ(I): 11.9
Reflection shellResolution: 2.55→2.69 Å / Redundancy: 4.9 % / Rmerge(I) obs: 0.548 / Mean I/σ(I) obs: 2.3 / Num. unique all: 2675 / % possible all: 99.7

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Processing

Software
NameVersionClassification
MAR345dtbdata collection
PHASERphasing
CNS1.1refinement
MOSFLMdata reduction
SCALAdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 2GEV

2gev


Resolution: 2.55→34.16 Å / Rfactor Rfree error: 0.008 / Data cutoff high absF: 1264899.79 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber / Details: BULK SOLVENT MODEL USED
RfactorNum. reflection% reflectionSelection details
Rfree0.249 914 4.9 %RANDOM
Rwork0.22 ---
obs0.22 18667 99.7 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 50.5686 Å2 / ksol: 0.343872 e/Å3
Displacement parametersBiso mean: 54.8 Å2
Baniso -1Baniso -2Baniso -3
1-6.51 Å212.58 Å20 Å2
2--6.51 Å20 Å2
3----13.02 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.42 Å0.34 Å
Luzzati d res low-5 Å
Luzzati sigma a0.52 Å0.44 Å
Refinement stepCycle: LAST / Resolution: 2.55→34.16 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2473 0 82 192 2747
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.006
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d22.8
X-RAY DIFFRACTIONc_improper_angle_d1.85
X-RAY DIFFRACTIONc_mcbond_it4.151.5
X-RAY DIFFRACTIONc_mcangle_it6.442
X-RAY DIFFRACTIONc_scbond_it7.972
X-RAY DIFFRACTIONc_scangle_it11.292.5
LS refinement shellResolution: 2.55→2.71 Å / Rfactor Rfree error: 0.031 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.384 149 4.9 %
Rwork0.336 2895 -
obs--99.7 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1protein_rep.paramprotein.top
X-RAY DIFFRACTION2water_rep.parampau_flc.top
X-RAY DIFFRACTION3ion.paramwater.top
X-RAY DIFFRACTION4pau_flc.paramion.top

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