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- PDB-3kv7: Structural basis of the activity and substrate specificity of the... -

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Basic information

Entry
Database: PDB / ID: 3kv7
TitleStructural basis of the activity and substrate specificity of the fluoroacetyl-CoA thioesterase FlK - wild type FlK in complex with acetate
Componentsfluoroacetyl-CoA thioesterase FlK
KeywordsHYDROLASE / fluoroacetyl-CoA thioesterase FlK / thioesterase / hot-dog folding
Function / homology
Function and homology information


fluoroacetyl-CoA thioesterase / acyl-CoA hydrolase activity / protein homodimerization activity
Similarity search - Function
Fluoroacetyl-CoA thioesterase / : / Fluoroacetyl-CoA-specific thioesterase / Hotdog Thioesterase / Thiol Ester Dehydrase; Chain A / HotDog domain superfamily / Roll / Alpha Beta
Similarity search - Domain/homology
ACETATE ION / Fluoroacetyl-CoA thioesterase
Similarity search - Component
Biological speciesStreptomyces Cattleya (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.56 Å
AuthorsDias, M.V.B. / Huang, F. / Chirgadze, D.Y. / Tosin, M. / Spiteller, D. / Valentine, E.F. / Leadlay, P.F. / Spencer, J.B. / Blundell, T.L.
CitationJournal: J.Biol.Chem. / Year: 2010
Title: Structural basis for the activity and substrate specificity of fluoroacetyl-CoA thioesterase FlK.
Authors: Dias, M.V. / Huang, F. / Chirgadze, D.Y. / Tosin, M. / Spiteller, D. / Dry, E.F. / Leadlay, P.F. / Spencer, J.B. / Blundell, T.L.
History
DepositionNov 29, 2009Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 21, 2010Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Jan 24, 2018Group: Structure summary / Category: audit_author / Item: _audit_author.name
Revision 1.3Sep 6, 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_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Oct 16, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: fluoroacetyl-CoA thioesterase FlK
B: fluoroacetyl-CoA thioesterase FlK
hetero molecules


Theoretical massNumber of molelcules
Total (without water)30,9729
Polymers30,5592
Non-polymers4137
Water5,206289
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5600 Å2
ΔGint-35 kcal/mol
Surface area11340 Å2
MethodPISA
Unit cell
Length a, b, c (Å)62.300, 92.720, 49.270
Angle α, β, γ (deg.)90.00, 100.89, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11A-304-

HOH

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Components

#1: Protein fluoroacetyl-CoA thioesterase FlK


Mass: 15279.436 Da / Num. of mol.: 2 / Fragment: FlK
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Streptomyces Cattleya (bacteria) / Gene: flK, fluoroacetyl-CoA thioesterase FlK / Plasmid: pET28a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: Q1EMV2, Hydrolases
#2: Chemical
ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C2H3O2
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 289 / Source method: isolated from a natural source / Formula: H2O
Has protein modificationY

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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: 2.29 Å3/Da / Density % sol: 46.2 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7
Details: Tris HCl Peg4000 Sodium acetate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-4 / Wavelength: 0.9795 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: 2008 / Details: mirrors
RadiationMonochromator: single crystal / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9795 Å / Relative weight: 1
ReflectionResolution: 1.56→25.53 Å / Num. all: 38891 / Num. obs: 38789 / % possible obs: 99.7 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2
Reflection shellResolution: 1.56→1.65 Å / % possible all: 99

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Processing

Software
NameVersionClassification
MAR345dtbdata collection
AMoREphasing
REFMAC5.5.0102refinement
MOSFLMdata reduction
SCALAdata scaling
RefinementStarting model: PDB entry 1HNN

1hnn


Resolution: 1.56→23.9 Å / Cor.coef. Fo:Fc: 0.961 / Cor.coef. Fo:Fc free: 0.948 / SU B: 1.295 / SU ML: 0.048 / Cross valid method: THROUGHOUT / σ(F): 2 / σ(I): 2 / ESU R: 0.081 / ESU R Free: 0.083 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.20481 1943 5 %RANDOM
Rwork0.17278 ---
all0.18 38891 --
obs0.17441 36843 99.77 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 18.16 Å2
Baniso -1Baniso -2Baniso -3
1-0.01 Å20 Å20.01 Å2
2--0 Å20 Å2
3----0.01 Å2
Refinement stepCycle: LAST / Resolution: 1.56→23.9 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2040 0 28 289 2357
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0310.0212141
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg2.3351.9482913
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.2595264
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.33922.22290
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.49315319
X-RAY DIFFRACTIONr_dihedral_angle_4_deg14.4791516
X-RAY DIFFRACTIONr_chiral_restr0.1830.2323
X-RAY DIFFRACTIONr_gen_planes_refined0.0140.0211663
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.6171.51352
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it2.55322174
X-RAY DIFFRACTIONr_scbond_it3.7023789
X-RAY DIFFRACTIONr_scangle_it5.7114.5739
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.562→1.602 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.29 135 -
Rwork0.227 2722 -
obs--99.17 %

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