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- PDB-1pww: Crystal structure of Anthrax Lethal Factor active site mutant pro... -

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Basic information

Entry
Database: PDB / ID: 1pww
TitleCrystal structure of Anthrax Lethal Factor active site mutant protein complexed with an optimised peptide substrate in the presence of zinc.
Components
  • LF20
  • Lethal factor
KeywordsHYDROLASE / Anthrax Toxin / Lethal Factor (active site mutant) / optimised peptide substrate
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
Biological speciesBacillus anthracis (anthrax bacterium)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.8 Å
AuthorsWong, T.Y. / Schwarzenbacher, R. / Liddington, R.C.
CitationJournal: Nat.Struct.Mol.Biol. / Year: 2004
Title: The structural basis for substrate and inhibitor selectivity of the anthrax lethal factor.
Authors: Turk, B.E. / Wong, T.Y. / Schwarzenbacher, R. / Jarrell, E.T. / Leppla, S.H. / Collier, R.J. / Liddington, R.C. / Cantley, L.C.
History
DepositionJul 2, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jan 27, 2004Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / 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 / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Aug 16, 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: Lethal factor
B: Lethal factor
C: LF20
D: LF20
hetero molecules


Theoretical massNumber of molelcules
Total (without water)185,5026
Polymers185,3714
Non-polymers1312
Water00
1
A: Lethal factor
C: LF20
hetero molecules


Theoretical massNumber of molelcules
Total (without water)92,7513
Polymers92,6862
Non-polymers651
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1830 Å2
ΔGint-51 kcal/mol
Surface area35030 Å2
MethodPISA
2
B: Lethal factor
D: LF20
hetero molecules


Theoretical massNumber of molelcules
Total (without water)92,7513
Polymers92,6862
Non-polymers651
Water0
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1740 Å2
ΔGint-53 kcal/mol
Surface area35740 Å2
MethodPISA
3


  • Idetical with deposited unit
  • defined by software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5910 Å2
ΔGint-121 kcal/mol
Surface area68430 Å2
MethodPISA
Unit cell
Length a, b, c (Å)96.700, 137.400, 98.300
Angle α, β, γ (deg.)90.00, 98.00, 90.00
Int Tables number4
Space group name H-MP1211
DetailsBiological unit is a monomer.

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Components

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


Mass: 90330.836 Da / Num. of mol.: 2 / Mutation: E687C
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacillus anthracis (anthrax bacterium) / Gene: LEF OR PXO1-107 / Plasmid: pX01 / Production host: Bacillus anthracis (anthrax bacterium) / Strain (production host): BH441
References: UniProt: P15917, Hydrolases; Acting on peptide bonds (peptidases); Metalloendopeptidases
#2: Protein/peptide LF20


Mass: 2354.831 Da / Num. of mol.: 2 / Source method: obtained synthetically / Details: This optimised peptide substrate was synthesised.
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn

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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: 3.6 Å3/Da / Density % sol: 65.5 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 8
Details: Ammonium sulphate, Tris-HCl, EDTA. , pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
Crystal grow
*PLUS
Temperature: 21-29 ℃ / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
11.7 Mammonium sulfate1reservoir
20.2 MTris-HCl1reservoirpH8.0
32 mMEDTA1reservoir
413 mg/mlprotein1drop

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-1 / Wavelength: 0.98 Å
DetectorType: ADSC QUANTUM 4 / Detector: CCD / Date: Nov 23, 2002
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 2.8→30 Å / Num. all: 55305 / Num. obs: 55305 / % possible obs: 86.5 % / Observed criterion σ(I): 2 / Rsym value: 0.12 / Net I/σ(I): 12
Reflection shellResolution: 2.8→2.9 Å / Mean I/σ(I) obs: 2.3 / Num. unique all: 55305 / Rsym value: 0.408 / % possible all: 86.5
Reflection
*PLUS
Num. obs: 54931 / % possible obs: 86.8 % / Num. measured all: 94088 / Rmerge(I) obs: 0.066
Reflection shell
*PLUS
% possible obs: 76 % / Rmerge(I) obs: 0.409 / Mean I/σ(I) obs: 2.2

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ID 1J7N

1j7n


Resolution: 2.8→22.69 Å / Rfactor Rfree error: 0.006 / Data cutoff high absF: 129540.38 / Data cutoff high rms absF: 129540.38 / Data cutoff low absF: 0 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.288 2583 5.1 %RANDOM
Rwork0.238 ---
obs0.238 51118 81.7 %-
Solvent computationSolvent model: FLAT MODEL / Bsol: 31.6192 Å2 / ksol: 0.359059 e/Å3
Displacement parametersBiso mean: 45.7 Å2
Baniso -1Baniso -2Baniso -3
1-2.47 Å20 Å23.37 Å2
2--4 Å20 Å2
3----6.47 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.47 Å0.39 Å
Luzzati d res low-5 Å
Luzzati sigma a0.59 Å0.51 Å
Refinement stepCycle: LAST / Resolution: 2.8→22.69 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms12183 0 2 0 12185
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d21.5
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d0.91
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it1.541.5
X-RAY DIFFRACTIONc_mcangle_it2.52
X-RAY DIFFRACTIONc_scbond_it2.112
X-RAY DIFFRACTIONc_scangle_it3.092.5
Refine LS restraints NCSNCS model details: CONSTR
LS refinement shellResolution: 2.8→2.98 Å / Rfactor Rfree error: 0.019 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.345 339 5 %
Rwork0.342 6401 -
obs--64.9 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2ION.PARAMION.TOP
Refinement
*PLUS
Lowest resolution: 30 Å / % reflection Rfree: 5 % / Rfactor Rfree: 0.277 / Rfactor Rwork: 0.23
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg21.5
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.91

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