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- PDB-1f1f: CRYSTAL STRUCTURE OF CYTOCHROME C6 FROM ARTHROSPIRA MAXIMA -

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Basic information

Entry
Database: PDB / ID: 1f1f
TitleCRYSTAL STRUCTURE OF CYTOCHROME C6 FROM ARTHROSPIRA MAXIMA
ComponentsCYTOCHROME C6
KeywordsELECTRON TRANSPORT / cytochrome c6 / heme / protein structure / cyanobacteria / photosynthesis
Function / homology
Function and homology information


plasma membrane-derived thylakoid lumen / photosynthesis / electron transfer activity / iron ion binding / heme binding
Similarity search - Function
Cytochrome c6 / Cytochrome c, class IC / Cytochrome C oxidase, cbb3-type, subunit III / Cytochrome c-like domain / Cytochrome Bc1 Complex; Chain D, domain 2 / Cytochrome c family profile. / Cytochrome c-like domain / Cytochrome c-like domain superfamily / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
HEME C / Cytochrome c6
Similarity search - Component
Biological speciesArthrospira maxima (bacteria)
MethodX-RAY DIFFRACTION / Resolution: 2.7 Å
AuthorsKerfeld, C.A. / Serag, A.A. / Sawaya, M.R. / Krogmann, D.W. / Yeates, T.O.
CitationJournal: Biochemistry / Year: 2001
Title: Structures of cytochrome c-549 and cytochrome c6 from the cyanobacterium Arthrospira maxima.
Authors: Sawaya, M.R. / Krogmann, D.W. / Serag, A. / Ho, K.K. / Yeates, T.O. / Kerfeld, C.A.
History
DepositionMay 18, 2000Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 8, 2001Provider: repository / Type: Initial release
Revision 1.1Apr 27, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 4, 2017Group: Refinement description / Category: software
Revision 2.0Mar 3, 2021Group: Atomic model / Data collection ...Atomic model / Data collection / Database references / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_conn_angle / struct_conn / struct_conn_type / struct_ref_seq_dif / struct_site
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.name / _chem_comp.pdbx_synonyms / _entity.formula_weight / _entity.pdbx_description / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _struct_conn.conn_type_id / _struct_conn.id / _struct_conn.pdbx_dist_value / _struct_conn.pdbx_leaving_atom_flag / _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_conn_type.id / _struct_ref_seq_dif.details / _struct_site.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 C6
hetero molecules


Theoretical massNumber of molelcules
Total (without water)9,8492
Polymers9,2301
Non-polymers6191
Water0
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)79.400, 67.800, 49.700
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 C6


Mass: 9230.350 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Arthrospira maxima (bacteria) / References: UniProt: P00118
#2: Chemical ChemComp-HEC / HEME C / Heme C


Mass: 618.503 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H34FeN4O4

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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

Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 7.8
Details: 0.1 M Tris, pH 7.8, 2.4 M (NH4)2SO4, 0.5 M LiSO4, 1% Glycerol, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Crystal grow
*PLUS
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
110 mg/mlprotein1drop
20.1 MTris1reservoir
32.4 Mammonium sulfate1reservoir
40.5 Mlithium sulfate1reservoir
51 %glycerol1reservoir

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.54
DetectorType: RIGAKU RAXIS / Detector: IMAGE PLATE / Date: Jun 1, 1995
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.7→50 Å / Num. all: 7504 / Num. obs: 7504 / % possible obs: 80.8 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 0 / Redundancy: 3.2 % / Biso Wilson estimate: 27.6 Å2 / Rmerge(I) obs: 0.086 / Net I/σ(I): 9.2
Reflection shellResolution: 2.75→3 Å / Num. unique all: 1212 / % possible all: 74
Reflection
*PLUS
Reflection shell
*PLUS
% possible obs: 74 %

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Processing

Software
NameClassification
AMoREphasing
CNSrefinement
SCALEPACKdata scaling
RefinementResolution: 2.7→50 Å / σ(F): 0 / σ(I): 0 / Stereochemistry target values: Engh & Huber
RfactorNum. reflection% reflectionSelection details
Rfree0.255 344 -5% Random
Rwork0.232 ---
all0.233 7504 --
obs0.233 7504 80.4 %-
Refinement stepCycle: LAST / Resolution: 2.7→50 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms643 0 43 0 686
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.011486
X-RAY DIFFRACTIONc_angle_deg1.21714
Software
*PLUS
Name: CNS / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.7 Å / Lowest resolution: 50 Å / σ(F): 0 / % reflection Rfree: 5 % / Rfactor obs: 0.232
Solvent computation
*PLUS
Displacement parameters
*PLUS

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