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- PDB-4xm8: Anthrax toxin lethal factor with ligand-induced binding pocket -

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Basic information

Entry
Database: PDB / ID: 4xm8
TitleAnthrax toxin lethal factor with ligand-induced binding pocket
ComponentsLethal factor
KeywordsTOXIN / HYDROLASE / Anthrax toxin / lethal factor / metalloproteinase / metalloprotease / structural dynamics / ligand-induced conformational change
Function / homology
Function and homology information


anthrax lethal factor endopeptidase / host cell cytosol / Uptake and function of anthrax toxins / metalloendopeptidase activity / metallopeptidase activity / toxin activity / proteolysis / zinc ion binding / extracellular region
Similarity search - Function
Anthrax toxin lethal factor, domain 3, chain A / Anthrax toxin lethal factor, domain 3, chain A / Anthrax toxin lethal factor, central domain / Anthrax toxin lethal factor, middle domain / Anthrax toxin, lethal/endema factor / : / Anthrax toxin lethal factor (ATLF)-like domain profile. / Anthrax toxin, lethal/endema factor, N-/C-terminal / Anthrax toxin lethal factor, N- and C-terminal domain / Toxin ADP-ribosyltransferase; Chain A, domain 1 ...Anthrax toxin lethal factor, domain 3, chain A / Anthrax toxin lethal factor, domain 3, chain A / Anthrax toxin lethal factor, central domain / Anthrax toxin lethal factor, middle domain / Anthrax toxin, lethal/endema factor / : / Anthrax toxin lethal factor (ATLF)-like domain profile. / Anthrax toxin, lethal/endema factor, N-/C-terminal / Anthrax toxin lethal factor, N- and C-terminal domain / Toxin ADP-ribosyltransferase; Chain A, domain 1 / Toxin ADP-ribosyltransferase; Chain A, domain 1 / Collagenase (Catalytic Domain) / Collagenase (Catalytic Domain) / Metallopeptidase, catalytic domain superfamily / Neutral zinc metallopeptidases, zinc-binding region signature. / Alpha-Beta Complex / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Chem-41T / Lethal factor
Similarity search - Component
Biological speciesBacillus anthracis (anthrax bacterium)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.7 Å
AuthorsMaize, K.M. / Finzel, B.C.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI091790-01 United States
CitationJournal: Febs Lett. / Year: 2015
Title: Ligand-induced expansion of the S1' site in the anthrax toxin lethal factor.
Authors: Maize, K.M. / Kurbanov, E.K. / Johnson, R.L. / Amin, E.A. / Finzel, B.C.
History
DepositionJan 14, 2015Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 11, 2015Provider: repository / Type: Initial release
Revision 1.1Dec 2, 2015Group: Database references
Revision 1.2Dec 30, 2015Group: Database references
Revision 1.3Sep 27, 2017Group: Author supporting evidence / Database references ...Author supporting evidence / Database references / Derived calculations / Refinement description
Category: citation / pdbx_audit_support ...citation / pdbx_audit_support / pdbx_struct_oper_list / software
Item: _citation.journal_id_CSD / _pdbx_audit_support.funding_organization ..._citation.journal_id_CSD / _pdbx_audit_support.funding_organization / _pdbx_struct_oper_list.symmetry_operation / _software.name
Revision 1.4Dec 11, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.5Sep 27, 2023Group: Data collection / Database references / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Lethal factor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)60,8743
Polymers60,4361
Non-polymers4382
Water91951
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)57.631, 77.076, 138.844
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Lethal factor / LF / Anthrax lethal toxin endopeptidase component


Mass: 60436.047 Da / Num. of mol.: 1 / Fragment: UNP residues 298-809 / Mutation: A266S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus anthracis (anthrax bacterium) / Gene: lef, pXO1-107, BXA0172, GBAA_pXO1_0172 / Plasmid: pMCSG10 / Production host: Escherichia coli (E. coli) / Strain (production host): Rosetta 2 pLysS
References: UniProt: P15917, anthrax lethal factor endopeptidase
#2: Chemical ChemComp-41T / N-hydroxy-N~2~-{[3-(methoxymethyl)phenyl]sulfonyl}-N~2~-(2-methylpropyl)-D-valinamide


Mass: 372.480 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C17H28N2O5S
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Zn
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 51 / 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: 2.55 Å3/Da / Density % sol: 51.79 %
Crystal growTemperature: 286 K / Method: vapor diffusion, hanging drop / pH: 6.8
Details: 11-16% PEG 8K, 50 mM Bis-Tris, 100 mM magnesium acetate

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 17-ID / Wavelength: 1 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Dec 1, 2014
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1 Å / Relative weight: 1
ReflectionResolution: 2.7→77.076 Å / Num. obs: 17580 / % possible obs: 99.7 % / Redundancy: 6 % / Biso Wilson estimate: 22.63 Å2 / Rmerge(I) obs: 0.111 / Num. measured all: 104853
Reflection shell

Diffraction-ID: 1 / Rejects: 0

Resolution (Å)Redundancy (%)Rmerge(I) obsNum. measured allNum. unique all% possible all
2.7-2.7095.60.21590316199.4
12.515-77.0764.80.049102621698.6

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Processing

Software
NameVersionClassification
PHENIX1.9_1692refinement
PDB_EXTRACT3.15data extraction
PHASERphasing
SCALAdata scaling
MOSFLMdata reduction
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1YQY

1yqy


Resolution: 2.7→46.155 Å / SU ML: 0.34 / Cross valid method: FREE R-VALUE / σ(F): 1.37 / Phase error: 27.02 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2759 842 4.8 %
Rwork0.2218 16683 -
obs0.2243 17525 99.43 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 93.99 Å2 / Biso mean: 28.9482 Å2 / Biso min: 2.6 Å2
Refinement stepCycle: final / Resolution: 2.7→46.155 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3996 0 26 51 4073
Biso mean--34.95 17.77 -
Num. residues----500
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0054091
X-RAY DIFFRACTIONf_angle_d0.6735526
X-RAY DIFFRACTIONf_chiral_restr0.025613
X-RAY DIFFRACTIONf_plane_restr0.003718
X-RAY DIFFRACTIONf_dihedral_angle_d13.8611529
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 6

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.7-2.86920.40391470.34022715286299
2.8692-3.09070.33021350.271727272862100
3.0907-3.40160.32261400.233627732913100
3.4016-3.89360.24841400.199527582898100
3.8936-4.90460.2091410.178227972938100
4.9046-46.16210.24391390.20262913305298

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