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- PDB-2vcs: Structure of isoniazid (INH) bound to cytosolic soybean ascorbate... -

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Basic information

Entry
Database: PDB / ID: 2vcs
TitleStructure of isoniazid (INH) bound to cytosolic soybean ascorbate peroxidase mutant H42A
ComponentsASCORBATE PEROXIDASE
KeywordsOXIDOREDUCTASE / ASCORBATE PEROXIDASE / PEROXIDASE / INH / APX / ISONIAZID
Function / homology
Function and homology information


L-ascorbate peroxidase / L-ascorbate peroxidase activity / cellular response to oxidative stress / heme binding / metal ion binding
Similarity search - Function
Class I peroxidase / Heme-binding peroxidase Ccp1-like / Peroxidase; domain 2 / Peroxidase, domain 2 / Peroxidase; domain 1 - #10 / Peroxidases heam-ligand binding site / Peroxidase, active site / Peroxidases active site signature. / Plant heme peroxidase family profile. / Haem peroxidase ...Class I peroxidase / Heme-binding peroxidase Ccp1-like / Peroxidase; domain 2 / Peroxidase, domain 2 / Peroxidase; domain 1 - #10 / Peroxidases heam-ligand binding site / Peroxidase, active site / Peroxidases active site signature. / Plant heme peroxidase family profile. / Haem peroxidase / Peroxidase / Peroxidase; domain 1 / Peroxidases proximal heme-ligand signature. / Haem peroxidase superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / 4-(DIAZENYLCARBONYL)PYRIDINE / L-ascorbate peroxidase
Similarity search - Component
Biological speciesGLYCINE MAX (soybean)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.68 Å
AuthorsMetcalfe, C.L. / Macdonald, I.K. / Brown, K.A. / Raven, E.L. / Moody, P.C.E.
CitationJournal: J.Biol.Chem. / Year: 2008
Title: The Tuberculosis Prodrug Isoniazid Bound to Activating Peroxidases.
Authors: Metcalfe, C.L. / Macdonald, I.K. / Murphy, E.J. / Brown, K.A. / Raven, E.L. / Moody, P.C.E.
History
DepositionSep 26, 2007Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 4, 2007Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Jul 5, 2017Group: Data collection / Category: diffrn_source / Item: _diffrn_source.type
Revision 1.4Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_special_symmetry / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _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_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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: ASCORBATE PEROXIDASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)29,2785
Polymers28,2951
Non-polymers9834
Water5,386299
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)81.735, 81.735, 74.937
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number94
Space group name H-MP42212
Components on special symmetry positions
IDModelComponents
11A-2057-

HOH

21A-2100-

HOH

31A-2141-

HOH

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Components

#1: Protein ASCORBATE PEROXIDASE / CYTOSOLIC ASCORBATE PEROXIDASE 1


Mass: 28294.838 Da / Num. of mol.: 1 / Fragment: RESIDUES 2-250 / Mutation: YES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) GLYCINE MAX (soybean) / Plasmid: SAPX6 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): SG13009 / References: UniProt: Q43758, L-ascorbate peroxidase
#2: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#3: Chemical ChemComp-ISZ / 4-(DIAZENYLCARBONYL)PYRIDINE / ISONIAZID / TUBAZID / RIMITSID / ISONICOTINYLHYDRAZINE / LANIZID / NYDRAZID


Mass: 135.123 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C6H5N3O
#4: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 299 / Source method: isolated from a natural source / Formula: H2O
Compound detailsENGINEERED RESIDUE IN CHAIN A, HIS 42 TO ALA

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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: 1.93 Å3/Da / Density % sol: 35.82 % / Description: NONE
Crystal growpH: 8.3 / Details: 2.5M LISO4, PH 8.3

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: RIGAKU IMAGE PLATE / Detector: IMAGE PLATE / Date: Aug 12, 2007 / Details: XENOCS MULTI-LAYER
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.68→27.62 Å / Num. obs: 24816 / % possible obs: 84 % / Observed criterion σ(I): 0 / Redundancy: 4.18 % / Rmerge(I) obs: 0.03 / Net I/σ(I): 31.2
Reflection shellResolution: 1.68→1.77 Å / Redundancy: 1.3 % / Rmerge(I) obs: 0.21 / Mean I/σ(I) obs: 2.5 / % possible all: 26.8

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
MOSFLMdata reduction
SCALAdata scaling
REFMACphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1OAF

1oaf


Resolution: 1.68→27.62 Å / Cor.coef. Fo:Fc: 0.96 / Cor.coef. Fo:Fc free: 0.942 / SU B: 3.6 / SU ML: 0.063 / Cross valid method: THROUGHOUT / ESU R: 0.223 / ESU R Free: 0.119 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.21 1260 5.1 %RANDOM
Rwork0.166 ---
obs0.168 23523 84.6 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 18.4 Å2
Baniso -1Baniso -2Baniso -3
1--0.06 Å20 Å20 Å2
2---0.06 Å20 Å2
3---0.12 Å2
Refinement stepCycle: LAST / Resolution: 1.68→27.62 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1900 0 68 299 2267
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.0222079
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.1792.0552844
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.2425263
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.37424.66790
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.84415324
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.063159
X-RAY DIFFRACTIONr_chiral_restr0.0780.2289
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.021643
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.2030.21110
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.3050.21430
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.2380.2229
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2770.263
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.5560.242
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it1.0251.51295
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.54622032
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.5123877
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it3.584.5803
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.69→1.73 Å / Total num. of bins used: 20 /
RfactorNum. reflection
Rfree0.549 13
Rwork0.405 314

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