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- PDB-4b8n: Cytochrome b5 of Ostreococcus tauri virus 2 -

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Basic information

Entry
Database: PDB / ID: 4b8n
TitleCytochrome b5 of Ostreococcus tauri virus 2
ComponentsCYTOCHROME B5-HOST ORIGIN
KeywordsELECTRON TRANSPORT / VIRAL CYTOCHROME B5
Function / homology
Function and homology information


heme binding / metal ion binding
Similarity search - Function
Flavocytochrome B2; Chain A, domain 1 / Cytochrome b5-like heme/steroid binding domain / Cytochrome b5, heme-binding site / Cytochrome b5 family, heme-binding domain signature. / Cytochrome b5 family, heme-binding domain profile. / Cytochrome b5-like heme/steroid binding domain / Cytochrome b5-like heme/steroid binding domain superfamily / Cytochrome b5-like Heme/Steroid binding domain / Cytochrome b5-like Heme/Steroid binding domain / Roll / Alpha Beta
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Cytochrome b5-host origin
Similarity search - Component
Biological speciesOSTREOCOCCUS TAURI VIRUS 2
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.95 Å
AuthorsIsupov, M. / Reid, E.L. / Weynberg, K.D. / Love, J. / Wilson, W.H. / Kelly, S.L. / Lamb, D.C. / Allen, M.J. / Littlechild, J.A.
CitationJournal: FEBS Lett. / Year: 2013
Title: Functional and Structural Characterisation of a Viral Cytochrome B5.
Authors: Reid, E.L. / Weynberg, K.D. / Love, J. / Isupov, M.N. / Littlechild, J.A. / Wilson, W.H. / Kelly, S.L. / Lamb, D.C. / Allen, M.J.
History
DepositionAug 28, 2012Deposition site: PDBE / Processing site: PDBE
Revision 1.0Sep 4, 2013Provider: repository / Type: Initial release
Revision 1.1Apr 23, 2014Group: Database references
Revision 1.2Dec 20, 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_conn_angle / struct_conn / struct_site
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 / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _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 / _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 B5-HOST ORIGIN
B: CYTOCHROME B5-HOST ORIGIN
C: CYTOCHROME B5-HOST ORIGIN
D: CYTOCHROME B5-HOST ORIGIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,48712
Polymers41,6374
Non-polymers2,8508
Water3,585199
1
A: CYTOCHROME B5-HOST ORIGIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,1223
Polymers10,4091
Non-polymers7132
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: CYTOCHROME B5-HOST ORIGIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,1223
Polymers10,4091
Non-polymers7132
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
3
C: CYTOCHROME B5-HOST ORIGIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,1223
Polymers10,4091
Non-polymers7132
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
4
D: CYTOCHROME B5-HOST ORIGIN
hetero molecules


Theoretical massNumber of molelcules
Total (without water)11,1223
Polymers10,4091
Non-polymers7132
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)45.690, 58.500, 127.070
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(-0.417, -0.884, 0.211), (-0.908, 0.393, -0.145), (0.045, -0.252, -0.967)10.30088, 11.43419, -14.80462
2given(-0.27576, 0.96077, 0.02972), (0.96109, 0.27507, 0.02537), (0.0162, 0.03556, -0.99924)6.33218, 42.04393, -31.92822
3given(0.78907, -0.55908, 0.25455), (0.60425, 0.78104, -0.15766), (-0.11067, 0.27821, 0.95412)8.14446, 3.20634, 45.81707

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Components

#1: Protein
CYTOCHROME B5-HOST ORIGIN


Mass: 10409.128 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) OSTREOCOCCUS TAURI VIRUS 2 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21 / References: UniProt: E4WM77
#2: Chemical
ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#3: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: SO4
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 199 / 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: 2.04 Å3/Da / Density % sol: 39.3 % / Description: NONE
Crystal growpH: 4.6 / Details: 2 M AMMONIUM SULPHATE, 0.1 M SODIUM ACETATE PH 4.6

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I03 / Wavelength: 0.9763
DetectorType: ADSC CCD / Detector: CCD / Date: May 1, 2010
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9763 Å / Relative weight: 1
ReflectionResolution: 1.95→45.7 Å / Num. obs: 25529 / % possible obs: 99.7 % / Observed criterion σ(I): 0 / Redundancy: 5.7 % / Rmerge(I) obs: 0.13 / Net I/σ(I): 8.2
Reflection shellResolution: 1.95→2.06 Å / Redundancy: 5.8 % / Rmerge(I) obs: 0.9 / Mean I/σ(I) obs: 2 / % possible all: 100

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Processing

Software
NameVersionClassification
REFMAC5.6.0117refinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2IBJ
Resolution: 1.95→63.54 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.933 / SU B: 4.612 / SU ML: 0.132 / Cross valid method: THROUGHOUT / ESU R: 0.192 / ESU R Free: 0.181 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.25368 1315 5.2 %RANDOM
Rwork0.18768 ---
obs0.19101 24163 99.52 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 34.881 Å2
Baniso -1Baniso -2Baniso -3
1--0.8 Å20 Å20 Å2
2--0.1 Å20 Å2
3---0.7 Å2
Refinement stepCycle: LAST / Resolution: 1.95→63.54 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2667 0 192 199 3058
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.010.023016
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg3.3782.1594169
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.8475349
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.30725.932118
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.47315524
X-RAY DIFFRACTIONr_dihedral_angle_4_deg8.036155
X-RAY DIFFRACTIONr_chiral_restr0.0830.2441
X-RAY DIFFRACTIONr_gen_planes_refined0.0110.0222261
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
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: 1.95→2.001 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.319 88 -
Rwork0.26 1619 -
obs--100 %

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