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- PDB-2ia8: Kinetic and Crystallographic Studies of a Redesigned Manganese-Bi... -

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Basic information

Entry
Database: PDB / ID: 2ia8
TitleKinetic and Crystallographic Studies of a Redesigned Manganese-Binding Site in Cytochrome c Peroxidase
ComponentsCytochrome c peroxidase, mitochondrial
KeywordsOXIDOREDUCTASE / Manganese oxidation / metal-binding site / protein engineering / metalloprotein / biomimetic
Function / homology
Function and homology information


cytochrome-c peroxidase / cytochrome-c peroxidase activity / response to reactive oxygen species / hydrogen peroxide catabolic process / peroxidase activity / mitochondrial intermembrane space / cellular response to oxidative stress / mitochondrial matrix / heme binding / mitochondrion / metal ion binding
Similarity search - Function
Class I peroxidase / Heme-binding peroxidase Ccp1-like / Peroxidase; domain 2 / Peroxidase, domain 2 / Peroxidase; domain 1 - #10 / Peroxidase; domain 1 / Peroxidases heam-ligand binding site / Peroxidase, active site / Peroxidases active site signature. / Plant heme peroxidase family profile. ...Class I peroxidase / Heme-binding peroxidase Ccp1-like / Peroxidase; domain 2 / Peroxidase, domain 2 / Peroxidase; domain 1 - #10 / Peroxidase; domain 1 / Peroxidases heam-ligand binding site / Peroxidase, active site / Peroxidases active site signature. / Plant heme peroxidase family profile. / Haem peroxidase / Peroxidase / Peroxidases proximal heme-ligand signature. / Haem peroxidase superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Cytochrome c peroxidase, mitochondrial
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodX-RAY DIFFRACTION / SYNCHROTRON / AB INITIO / Resolution: 1.48 Å
AuthorsPfister, T. / Mirarefi, A.Y. / Gengenbach, A.J. / Zhao, X. / Conaster, C.D.N. / Gao, Y.G. / Robinson, H. / Zukoski, C.F. / Wang, A.H.J. / Lu, Y.
CitationJournal: J.Biol.Inorg.Chem. / Year: 2007
Title: Kinetic and crystallographic studies of a redesigned manganese-binding site in cytochrome c peroxidase
Authors: Pfister, T.D. / Mirarefi, A.Y. / Gengenbach, A.J. / Zhao, X. / Danstrom, C. / Conatser, N. / Gao, Y.-G. / Robinson, H. / Zukoski, C.F. / Wang, A.H.-J. / Lu, Y.
History
DepositionSep 7, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 28, 2007Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: 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 1.3Feb 21, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Cytochrome c peroxidase, mitochondrial
hetero molecules


Theoretical massNumber of molelcules
Total (without water)33,8772
Polymers33,2611
Non-polymers6161
Water3,873215
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)44.192, 52.612, 136.137
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Cytochrome c peroxidase, mitochondrial / CCP


Mass: 33260.910 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: CCP1 / Production host: Escherichia coli (E. coli) / References: UniProt: P00431, cytochrome-c 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: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 215 / 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: 2.377914 Å3/Da / Density % sol: 48.27 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 4.6
Details: 1.0 M hexanediol in 0.1 M sodium acetate trihydrate, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 95 K
Diffraction sourceSource: SYNCHROTRON / Site: NSLS / Beamline: X12C / Wavelength: 1.1 Å
DetectorType: ADSC QUANTUM 210 / Detector: CCD
RadiationMonochromator: graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.1 Å / Relative weight: 1
ReflectionResolution: 1.48→30 Å / Num. all: 53542 / Num. obs: 53542 / % possible obs: 95 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 11.7 % / Rmerge(I) obs: 0.052
Reflection shellHighest resolution: 1.48 Å / Redundancy: 6.6 % / Rmerge(I) obs: 0.344

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Processing

Software
NameVersionClassification
SHELXmodel building
SHELXL-97refinement
ADSCQuantumdata collection
HKL-2000data reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: AB INITIO / Resolution: 1.48→10 Å / Num. parameters: 10471 / Num. restraintsaints: 9890 / Cross valid method: FREE R / σ(F): 4 / σ(I): 2 / Stereochemistry target values: ENGH AND HUBER
Details: ANISOTROPIC SCALING APPLIED BY THE METHOD OF PARKIN, MOEZZI & HOPE, J.APPL.CRYST.28(1995)53-56
RfactorNum. reflection% reflectionSelection details
Rfree0.2471 2599 5 %RANDOM
all0.2161 49192 --
obs0.2119 46740 92.2 %-
Refine analyzeNum. disordered residues: 2 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 2605
Refinement stepCycle: LAST / Resolution: 1.48→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2348 0 43 215 2606
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_bond_d0.009
X-RAY DIFFRACTIONs_angle_d0.025
X-RAY DIFFRACTIONs_similar_dist0
X-RAY DIFFRACTIONs_from_restr_planes0.0267
X-RAY DIFFRACTIONs_zero_chiral_vol0.047
X-RAY DIFFRACTIONs_non_zero_chiral_vol0.055
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.019
X-RAY DIFFRACTIONs_rigid_bond_adp_cmpnt0
X-RAY DIFFRACTIONs_similar_adp_cmpnt0.064
X-RAY DIFFRACTIONs_approx_iso_adps0

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