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- PDB-6mhk: Crystal structure of ketosynthase nine from bacillaene polyketide... -

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Basic information

Entry
Database: PDB / ID: 6mhk
TitleCrystal structure of ketosynthase nine from bacillaene polyketide synthase in Bacillus amyloliquefaciens
ComponentsPolyketide synthase
KeywordsTRANSFERASE / Ketosynthase / polyketide assembly line / bacillaene / condensation
Function / homology
Function and homology information


phosphopantetheine binding / 3-oxoacyl-[acyl-carrier-protein] synthase activity / fatty acid biosynthetic process
Similarity search - Function
Methyltransferase type 12 / Methyltransferase domain / Polyketide synthase dehydratase N-terminal domain / PKS_DH / Polyketide synthase, dehydratase domain / Polyketide synthase, dehydratase domain superfamily / Polyketide synthase, ketoreductase domain / KR domain / Polyketide synthase, C-terminal extension / Ketoacyl-synthetase C-terminal extension ...Methyltransferase type 12 / Methyltransferase domain / Polyketide synthase dehydratase N-terminal domain / PKS_DH / Polyketide synthase, dehydratase domain / Polyketide synthase, dehydratase domain superfamily / Polyketide synthase, ketoreductase domain / KR domain / Polyketide synthase, C-terminal extension / Ketoacyl-synthetase C-terminal extension / Thiolase/Chalcone synthase / Peroxisomal Thiolase; Chain A, domain 1 / 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 / NAD(P)-binding domain superfamily / S-adenosyl-L-methionine-dependent methyltransferase superfamily / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Biological speciesBacillus amyloliquefaciens (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.93 Å
AuthorsMeinke, J.L. / 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: To Be Published
Title: Crystal structure of ketosynthase nine from BaeM
Authors: Meinke, J.L. / Keatinge-Clay, A.T.
History
DepositionSep 18, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 25, 2019Provider: repository / Type: Initial release
Revision 1.1Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.2Mar 13, 2024Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Polyketide synthase
B: Polyketide synthase


Theoretical massNumber of molelcules
Total (without water)134,0502
Polymers134,0502
Non-polymers00
Water7,224401
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4690 Å2
ΔGint-34 kcal/mol
Surface area36910 Å2
MethodPISA
Unit cell
Length a, b, c (Å)78.861, 116.486, 141.117
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B

NCS domain segments:

Component-ID: 0 / Ens-ID: 1 / Beg auth comp-ID: GLY / Beg label comp-ID: GLY / End auth comp-ID: TRP / End label comp-ID: TRP / Refine code: 0 / Auth seq-ID: 1 - 587 / Label seq-ID: 24 - 610

Dom-IDAuth asym-IDLabel asym-ID
1AA
2BB

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Components

#1: Protein Polyketide synthase /


Mass: 67025.094 Da / Num. of mol.: 2 / Fragment: residues 386-979
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus amyloliquefaciens (bacteria) / Gene: baeM / Production host: Escherichia coli BL21(DE3) (bacteria) / References: UniProt: Q1RS71
#2: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 401 / 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: 2.45 Å3/Da / Density % sol: 49.7 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / Details: 0.2M MgCl2, 0.1M Tris pH 8.5, 20% w/v PEG 8000

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 5.0.3 / Wavelength: 0.976 Å
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Jan 25, 2015
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.976 Å / Relative weight: 1
ReflectionResolution: 1.93→50 Å / Num. obs: 97550 / % possible obs: 98.69 % / Redundancy: 6.9 % / CC1/2: 0.982 / Rmerge(I) obs: 0.132 / Net I/σ(I): 18.9
Reflection shellResolution: 1.93→1.96 Å / Rmerge(I) obs: 0.882 / Mean I/σ(I) obs: 1.85 / Num. unique obs: 4728 / CC1/2: 0.758 / % possible all: 97.9

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Processing

Software
NameVersionClassification
REFMAC5.8.0073refinement
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.93→50 Å / Cor.coef. Fo:Fc: 0.953 / Cor.coef. Fo:Fc free: 0.94 / Cross valid method: THROUGHOUT / ESU R: 0.139 / ESU R Free: 0.127 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.21044 4827 5 %RANDOM
Rwork0.18232 ---
obs0.1837 92470 99.02 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 26.758 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å20 Å2
2--0.01 Å20 Å2
3----0.02 Å2
Refinement stepCycle: 1 / Resolution: 1.93→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms8278 0 0 401 8679
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.020.0198459
X-RAY DIFFRACTIONr_bond_other_d00.027988
X-RAY DIFFRACTIONr_angle_refined_deg1.9041.95611439
X-RAY DIFFRACTIONr_angle_other_deg3.686318433
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.07351054
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.86723.978367
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.979151418
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.3941548
X-RAY DIFFRACTIONr_chiral_restr0.1550.21244
X-RAY DIFFRACTIONr_gen_planes_refined0.010.0219530
X-RAY DIFFRACTIONr_gen_planes_other0.0220.021904
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_it2.4432.354264
X-RAY DIFFRACTIONr_mcbond_other2.442.3494263
X-RAY DIFFRACTIONr_mcangle_it3.3973.4965302
X-RAY DIFFRACTIONr_mcangle_other3.3973.4965303
X-RAY DIFFRACTIONr_scbond_it3.9182.8594195
X-RAY DIFFRACTIONr_scbond_other3.9172.8594196
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other5.9754.0946138
X-RAY DIFFRACTIONr_long_range_B_refined6.97219.6729801
X-RAY DIFFRACTIONr_long_range_B_other6.9819.5919675
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Ens-ID: 1 / Number: 32214 / Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Rms dev position: 0.12 Å / Weight position: 0.05

Dom-IDAuth asym-ID
1A
2B
LS refinement shellResolution: 1.93→1.98 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.272 342 -
Rwork0.257 6677 -
obs--97.87 %

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