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- PDB-2ps4: N225D trichodiene synthase -

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Basic information

Entry
Database: PDB / ID: 2ps4
TitleN225D trichodiene synthase
ComponentsTrichodiene synthase
KeywordsLYASE / Terpenoid synthase fold / site-directed mutagenesis / NSE/DTE motif / magnesium / ethylene glycol
Function / homology
Function and homology information


trichodiene synthase / trichodiene synthase activity / sesquiterpenoid biosynthetic process / metal ion binding
Similarity search - Function
Trichodiene synthase, ascomycetes / Trichodiene synthase / Trichodiene synthase (TRI5) / Farnesyl Diphosphate Synthase / Farnesyl Diphosphate Synthase / Isoprenoid synthase domain superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Trichodiene synthase
Similarity search - Component
Biological speciesFusarium sporotrichioides (fungus)
MethodX-RAY DIFFRACTION / SYNCHROTRON / FOURIER SYNTHESIS / Resolution: 2.46 Å
AuthorsVedula, L.S. / Cane, D.E. / Christianson, D.W.
CitationJournal: Arch.Biochem.Biophys. / Year: 2008
Title: Structural and mechanistic analysis of trichodiene synthase using site-directed mutagenesis: probing the catalytic function of tyrosine-295 and the asparagine-225/serine-229/glutamate-233-Mg2+B motif.
Authors: Vedula, L.S. / Jiang, J. / Zakharian, T. / Cane, D.E. / Christianson, D.W.
History
DepositionMay 4, 2007Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 18, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.2Oct 20, 2021Group: Database references / Derived calculations / Category: database_2 / 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
Revision 1.3Aug 30, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Trichodiene synthase
B: Trichodiene synthase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)88,4008
Polymers88,1032
Non-polymers2976
Water1,38777
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area6500 Å2
ΔGint-43 kcal/mol
Surface area27920 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)123.372, 123.372, 151.806
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 Trichodiene synthase / Sesquiterpene cyclase / TS


Mass: 44051.590 Da / Num. of mol.: 2 / Mutation: N225D
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Fusarium sporotrichioides (fungus) / Gene: TRI5, TOX 5 / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P13513, trichodiene synthase
#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H6O2
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 77 / 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: 3.78 Å3/Da / Density % sol: 67.49 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 6.9
Details: PEG 8000, SODIUM HEPES, CALCIUM CHLORIDE, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 5.0.2 / Wavelength: 1.00001 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Nov 10, 2005
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.00001 Å / Relative weight: 1
ReflectionResolution: 2.46→87.37 Å / Num. obs: 46906 / % possible obs: 95.9 % / Observed criterion σ(I): 2 / Redundancy: 3.8 % / Biso Wilson estimate: 64.1 Å2 / Rmerge(I) obs: 0.082 / Net I/σ(I): 12.3
Reflection shellResolution: 2.46→2.59 Å / Redundancy: 3.8 % / Rmerge(I) obs: 0.399 / Mean I/σ(I) obs: 2 / Num. unique all: 6927 / % possible all: 98

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Processing

Software
NameClassification
CNSrefinement
MOSFLMdata reduction
SCALAdata scaling
CNSphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: 1JFA

1jfa


Resolution: 2.46→87.37 Å / Cross valid method: THROUGHOUT / Stereochemistry target values: Engh & Huber
Details: Residues with side chain B-factors = 20.00 were refined as alanines due to disorder
RfactorNum. reflection% reflectionSelection details
Rfree0.282 2338 -Random
Rwork0.244 ---
all-49016 --
obs-46849 95.6 %-
Displacement parametersBiso mean: 60 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.47 Å0.39 Å
Luzzati d res low-5 Å
Luzzati sigma a0.41 Å0.42 Å
Refinement stepCycle: LAST / Resolution: 2.46→87.37 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5844 0 18 77 5939
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.007
X-RAY DIFFRACTIONc_angle_d1.2
X-RAY DIFFRACTIONc_dihedral_angle_d18.8
X-RAY DIFFRACTIONc_improper_angle_d0.8

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