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- PDB-7stq: Crystal structure of arabidopsis thaliana acetohydroxyacid syntha... -

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Basic information

Entry
Database: PDB / ID: 7stq
TitleCrystal structure of arabidopsis thaliana acetohydroxyacid synthase W574L mutant in complex with chlorimuron-ethyl
ComponentsAcetolactate synthase, chloroplastic
KeywordsLIGASE / Herbicide / Resistance / AHAS / ALS
Function / homology
Function and homology information


acetolactate synthase / acetolactate synthase activity / L-valine biosynthetic process / isoleucine biosynthetic process / thiamine pyrophosphate binding / response to herbicide / chloroplast stroma / chloroplast / flavin adenine dinucleotide binding / magnesium ion binding
Similarity search - Function
Acetolactate synthase, large subunit, biosynthetic / Acetolactate synthase large subunit, TPP binding domain / Thiamine pyrophosphate enzyme / TPP-binding enzyme, conserved site / Thiamine pyrophosphate enzymes signature. / Thiamine pyrophosphate enzyme, central domain / Thiamine pyrophosphate enzyme, central domain / Thiamine pyrophosphate enzyme, N-terminal TPP-binding domain / Thiamine pyrophosphate enzyme, N-terminal TPP binding domain / Thiamine pyrophosphate enzyme, C-terminal TPP-binding ...Acetolactate synthase, large subunit, biosynthetic / Acetolactate synthase large subunit, TPP binding domain / Thiamine pyrophosphate enzyme / TPP-binding enzyme, conserved site / Thiamine pyrophosphate enzymes signature. / Thiamine pyrophosphate enzyme, central domain / Thiamine pyrophosphate enzyme, central domain / Thiamine pyrophosphate enzyme, N-terminal TPP-binding domain / Thiamine pyrophosphate enzyme, N-terminal TPP binding domain / Thiamine pyrophosphate enzyme, C-terminal TPP-binding / Thiamine pyrophosphate enzyme, C-terminal TPP binding domain / Thiamin diphosphate-binding fold / DHS-like NAD/FAD-binding domain superfamily
Similarity search - Domain/homology
Chem-CIE / FLAVIN-ADENINE DINUCLEOTIDE / Chem-TZD / Acetolactate synthase, chloroplastic
Similarity search - Component
Biological speciesArabidopsis thaliana (thale cress)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 3.3 Å
AuthorsGuddat, L.W. / Cheng, Y.
Funding support Australia, 1items
OrganizationGrant numberCountry
Australian Research Council (ARC) Australia
CitationJournal: Nat Commun / Year: 2022
Title: Structural basis of resistance to herbicides that target acetohydroxyacid synthase.
Authors: Lonhienne, T. / Cheng, Y. / Garcia, M.D. / Hu, S.H. / Low, Y.S. / Schenk, G. / Williams, C.M. / Guddat, L.W.
History
DepositionNov 15, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 1, 2022Provider: repository / Type: Initial release
Revision 1.1Aug 24, 2022Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Oct 18, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.3Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Acetolactate synthase, chloroplastic
hetero molecules


Theoretical massNumber of molelcules
Total (without water)66,5118
Polymers64,5191
Non-polymers1,9937
Water00
1
A: Acetolactate synthase, chloroplastic
hetero molecules

A: Acetolactate synthase, chloroplastic
hetero molecules


Theoretical massNumber of molelcules
Total (without water)133,02216
Polymers129,0372
Non-polymers3,98514
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation10_666-y+1,-x+1,-z+4/31
Buried area14180 Å2
ΔGint-139 kcal/mol
Surface area37730 Å2
MethodPISA
Unit cell
Length a, b, c (Å)178.129, 178.129, 184.760
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number181
Space group name H-MP6422
Symmetry operation#1: x,y,z
#2: x-y,x,z+2/3
#3: y,-x+y,z+1/3
#4: -y,x-y,z+1/3
#5: -x+y,-x,z+2/3
#6: x-y,-y,-z
#7: -x,-x+y,-z+2/3
#8: -x,-y,z
#9: y,x,-z+1/3
#10: -y,-x,-z+1/3
#11: -x+y,y,-z
#12: x,x-y,-z+2/3
Components on special symmetry positions
IDModelComponents
11A-705-

MG

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Acetolactate synthase, chloroplastic / AtALS / Acetohydroxy-acid synthase / Protein CHLORSULFURON RESISTANT 1


Mass: 64518.609 Da / Num. of mol.: 1 / Mutation: W574L
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Arabidopsis thaliana (thale cress) / Gene: ALS, AHAS, CSR1, TZP5, At3g48560, T8P19.70 / Production host: Escherichia coli (E. coli) / References: UniProt: P17597, acetolactate synthase

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Non-polymers , 6 types, 7 molecules

#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-FAD / FLAVIN-ADENINE DINUCLEOTIDE


Mass: 785.550 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C27H33N9O15P2 / Comment: FAD*YM
#4: Chemical ChemComp-CIE / 2-[[[[(4-CHLORO-6-METHOXY-2-PYRIMIDINYL)AMINO]CARBONYL]AMINO]SULFONYL]BENZOIC ACID ETHYL ESTER / CHLORIMURON ETHYL


Mass: 414.821 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C15H15ClN4O6S
#5: Chemical ChemComp-TZD / 2-{3-[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]-4-METHYL-2-OXO-2,3-DIHYDRO-1,3-THIAZOL-5-YL}ETHYL TRIHYDROGEN DIPHOSPHATE / THIAMIN THIAZOLONE DIPHOSPHATE


Mass: 440.306 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H18N4O8P2S
#6: Chemical ChemComp-NHE / 2-[N-CYCLOHEXYLAMINO]ETHANE SULFONIC ACID / N-CYCLOHEXYLTAURINE / CHES


Mass: 207.290 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H17NO3S / Comment: pH buffer*YM
#7: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4

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Details

Has ligand of interestN
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: 6.67 Å3/Da / Density % sol: 81.55 % / Description: Yellow diamond shape
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 9.8
Details: CHES buffer, potassium sodium tartrate, sodium sulfate
PH range: 9.4-9.8

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.97 Å
DetectorType: DECTRIS PILATUS 2M / Detector: PIXEL / Date: Aug 7, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97 Å / Relative weight: 1
ReflectionResolution: 3.3→48.13 Å / Num. obs: 26470 / % possible obs: 99.6 % / Redundancy: 10.7 % / Biso Wilson estimate: 89.08 Å2 / Rpim(I) all: 0.044 / Net I/σ(I): 10.7
Reflection shellResolution: 3.3→3.53 Å / Redundancy: 10.8 % / Num. unique obs: 4647 / Rpim(I) all: 0.197 / % possible all: 98.7

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Processing

Software
NameVersionClassification
PHENIX1.17.1_3660refinement
XDSdata reduction
XDSdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5K2O

5k2o


Resolution: 3.3→48.13 Å / SU ML: 0.36 / Cross valid method: THROUGHOUT / σ(F): 1.34 / Phase error: 20.77 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2053 1998 7.56 %
Rwork0.1781 24446 -
obs0.1802 26444 99.49 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 173.07 Å2 / Biso mean: 83.6703 Å2 / Biso min: 40.42 Å2
Refinement stepCycle: final / Resolution: 3.3→48.13 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4442 0 127 0 4569
Biso mean--81.76 --
Num. residues----582
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 14

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
3.3-3.380.29911360.26421660179697
3.38-3.470.31231400.245617051845100
3.47-3.580.28921410.233917231864100
3.58-3.690.25871400.218117241864100
3.69-3.820.2251410.205617231864100
3.82-3.980.20681410.188417201861100
3.98-4.160.20091410.179717311872100
4.16-4.380.1921420.154717291871100
4.38-4.650.20231410.154317421883100
4.65-5.010.17241440.150517591903100
5.01-5.510.19641430.167517511894100
5.51-6.310.24051460.190217781924100
6.31-7.940.1671470.164417971944100
7.95-48.130.17141550.15891904205998

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