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- PDB-1cmq: SMALL MOLECULE BINDING TO AN ARTIFICIALLY CREATED CAVITY AT THE A... -

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Basic information

Entry
Database: PDB / ID: 1cmq
TitleSMALL MOLECULE BINDING TO AN ARTIFICIALLY CREATED CAVITY AT THE ACTIVE SITE OF CYTOCHROME C PEROXIDASE
ComponentsCYTOCHROME C PEROXIDASE
KeywordsOXIDOREDUCTASE(H2O2(A))
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 / Resolution: 2.3 Å
AuthorsFitzgerald, M.M. / Mcree, D.E. / Churchill, M.J. / Goodin, D.B.
Citation
Journal: Biochemistry / Year: 1994
Title: Small molecule binding to an artificially created cavity at the active site of cytochrome c peroxidase.
Authors: Fitzgerald, M.M. / Churchill, M.J. / McRee, D.E. / Goodin, D.B.
#1: Journal: Biochemistry / Year: 1993
Title: The Asp-His-Fe Triad of Cytochrome C Peroxidase Controls the Reduction Potential Electronic Structure and Coupling of the Tryptophan Free-Radical to the Heme
Authors: Goodin, D.B. / Mcree, D.E.
History
DepositionNov 23, 1993Processing site: BNL
Revision 1.0Jan 31, 1994Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Nov 29, 2017Group: Derived calculations / Other
Category: pdbx_database_status / struct_conf / struct_conf_type
Item: _pdbx_database_status.process_site
Revision 1.4Feb 7, 2024Group: Data collection / Database references / Derived calculations
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / 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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: CYTOCHROME C PEROXIDASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)34,0752
Polymers33,4581
Non-polymers6161
Water99155
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)105.200, 74.300, 45.400
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


Mass: 33458.258 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Gene: POTENTIAL / 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.: 55 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 2.65 Å3/Da / Density % sol: 53.59 %
Crystal grow
*PLUS
Temperature: 4 ℃ / pH: 6 / Method: vapor diffusion, sitting drop / Details: Wang, J.M. (1990) Biochemistry, 29, 7160.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
110 mg/mlprotein1drop
20.10 Mpotassium phosphate1drop
340 %(w/v)MPD1drop
430 %(w/v)MPD1reservoir

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Data collection

RadiationScattering type: x-ray
Radiation wavelengthRelative weight: 1
Reflection
*PLUS
Highest resolution: 2 Å / Num. obs: 19881 / % possible obs: 80 % / Rmerge(I) obs: 0.057
Reflection shell
*PLUS
Mean I/σ(I) obs: 1.7

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Processing

Software
NameClassification
X-PLORmodel building
X-PLORrefinement
X-PLORphasing
RefinementResolution: 2.3→5 Å / σ(F): 0 /
RfactorNum. reflection
Rwork0.19 -
obs0.19 13028
Refinement stepCycle: LAST / Resolution: 2.3→5 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2841 0 43 55 2939
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.017
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg2.9
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it

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