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- PDB-4u3v: Crystal structure of the trans-acyltransferase polyketide synthas... -

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Basic information

Entry
Database: PDB / ID: 4u3v
TitleCrystal structure of the trans-acyltransferase polyketide synthase enoyl-isomerase
ComponentsPolyketide synthase PksR
KeywordsISOMERASE / double-hotdog / polyketide / trans-AT
Function / homology
Function and homology information


biosynthetic process / acyltransferase activity, transferring groups other than amino-acyl groups / hydrolase activity, acting on ester bonds / phosphopantetheine binding / Transferases; Acyltransferases; Transferring groups other than aminoacyl groups / cytoplasm
Similarity search - Function
Polyketide synthase dehydratase / Methyltransferase type 12 / Methyltransferase domain / Thiolase, acyl-enzyme intermediate active site / Thiolases acyl-enzyme intermediate signature. / Thioesterase / Thioesterase domain / Polyketide synthase dehydratase N-terminal domain / Polyketide synthase, dehydratase domain / Polyketide synthase, dehydratase domain superfamily ...Polyketide synthase dehydratase / Methyltransferase type 12 / Methyltransferase domain / Thiolase, acyl-enzyme intermediate active site / Thiolases acyl-enzyme intermediate signature. / Thioesterase / Thioesterase domain / Polyketide synthase dehydratase N-terminal domain / Polyketide synthase, dehydratase domain / Polyketide synthase, dehydratase domain superfamily / Thiol Ester Dehydrase; Chain A / Polyketide synthase, C-terminal extension / Ketoacyl-synthetase C-terminal extension / Polyketide synthase, phosphopantetheine-binding domain / Phosphopantetheine attachment site / Beta-ketoacyl synthase / Beta-ketoacyl synthase, active site / Ketosynthase family 3 (KS3) active site signature. / Polyketide synthase, beta-ketoacyl synthase domain / Beta-ketoacyl synthase, N-terminal / Beta-ketoacyl synthase, C-terminal / Beta-ketoacyl synthase, N-terminal domain / Beta-ketoacyl synthase, C-terminal domain / Phosphopantetheine attachment site / Thiolase-like / Phosphopantetheine attachment site. / Phosphopantetheine attachment site / ACP-like superfamily / Carrier protein (CP) domain profile. / Phosphopantetheine binding ACP domain / Alpha/Beta hydrolase fold / S-adenosyl-L-methionine-dependent methyltransferase superfamily / Roll / Alpha Beta
Similarity search - Domain/homology
Polyketide synthase PksR
Similarity search - Component
Biological speciesBacillus subtilis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / Resolution: 1.73 Å
AuthorsGay, D.C. / Spear, P.J. / Keatinge-Clay, A.T.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM106112 United States
CitationJournal: Acs Chem.Biol. / Year: 2014
Title: A Double-Hotdog with a New Trick: Structure and Mechanism of the trans-Acyltransferase Polyketide Synthase Enoyl-isomerase.
Authors: Gay, D.C. / Spear, P.J. / Keatinge-Clay, A.T.
History
DepositionJul 22, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 20, 2014Provider: repository / Type: Initial release
Revision 1.1Oct 29, 2014Group: Database references
Revision 1.2Sep 13, 2017Group: Author supporting evidence / Derived calculations ...Author supporting evidence / Derived calculations / Other / Source and taxonomy
Category: entity_src_gen / pdbx_audit_support ...entity_src_gen / pdbx_audit_support / pdbx_database_status / pdbx_struct_assembly / pdbx_struct_assembly_prop / pdbx_struct_oper_list
Item: _entity_src_gen.pdbx_alt_source_flag / _pdbx_audit_support.funding_organization ..._entity_src_gen.pdbx_alt_source_flag / _pdbx_audit_support.funding_organization / _pdbx_database_status.pdb_format_compatible / _pdbx_struct_assembly.oligomeric_details / _pdbx_struct_assembly_prop.type / _pdbx_struct_assembly_prop.value / _pdbx_struct_oper_list.symmetry_operation
Revision 1.3Dec 25, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Dec 27, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / refine_hist
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _refine_hist.number_atoms_solvent / _refine_hist.pdbx_number_atoms_ligand / _refine_hist.pdbx_number_atoms_nucleic_acid / _refine_hist.pdbx_number_atoms_protein

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Polyketide synthase PksR


Theoretical massNumber of molelcules
Total (without water)32,6621
Polymers32,6621
Non-polymers00
Water2,360131
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area0 Å2
ΔGint0 kcal/mol
Surface area12170 Å2
MethodPISA
Unit cell
Length a, b, c (Å)48.821, 68.267, 77.823
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Polyketide synthase PksR


Mass: 32661.998 Da / Num. of mol.: 1 / Fragment: UNP residues 1124-1395
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus subtilis (bacteria) / Strain: 168 / Gene: pksR, BSU17220 / Plasmid: pGAY-28 / Details (production host): LIC cloning vector / Cell line (production host): BL21 / Production host: Escherichia coli (E. coli)
References: UniProt: O31784, Transferases; Acyltransferases; Transferring groups other than aminoacyl groups
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 131 / 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: 1.99 Å3/Da / Density % sol: 38.04 %
Crystal growTemperature: 300 K / Method: vapor diffusion, sitting drop / pH: 8.3 / Details: 1.9 M ammonium sulfate, 0.1 M Tris-HCl, pH 8.3 / PH range: 8.3

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-D / Wavelength: 1.0332 Å
DetectorType: MARMOSAIC 300 mm CCD / Detector: CCD / Date: Nov 4, 2013
RadiationMonochromator: Double crystal cryo-cooled / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.0332 Å / Relative weight: 1
ReflectionResolution: 1.73→35.37 Å / Num. all: 25889 / Num. obs: 25889 / % possible obs: 97.6 % / Redundancy: 3.5 % / Net I/σ(I): 48.3
Reflection shellRedundancy: 2.4 % / Mean I/σ(I) obs: 2.5 / % possible all: 74.4

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Processing

SoftwareName: REFMAC / Version: 5.6.0117 / Classification: refinement
RefinementResolution: 1.73→35.37 Å / Cor.coef. Fo:Fc: 0.957 / Cor.coef. Fo:Fc free: 0.947 / Cross valid method: THROUGHOUT / ESU R: 0.129 / ESU R Free: 0.119 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
RfactorNum. reflection% reflectionSelection details
Rfree0.23855 1380 5.1 %RANDOM
Rwork0.21356 ---
obs0.21478 25889 97.57 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 41.284 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å2-0 Å20 Å2
2--0 Å2-0 Å2
3----0 Å2
Refinement stepCycle: 1 / Resolution: 1.73→35.37 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1932 0 0 131 2063
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.021978
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.4241.9582679
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg8.2835238
X-RAY DIFFRACTIONr_dihedral_angle_2_deg40.18624.94489
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.10715342
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.508155
X-RAY DIFFRACTIONr_chiral_restr0.1180.2300
X-RAY DIFFRACTIONr_gen_planes_refined0.0150.0211476
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_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.73→1.772 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.29 67 -
Rwork0.297 1429 -
obs--74.39 %

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