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- PDB-1pc4: Crystal Structure of the P50A mutant of ferredoxin I at 1.65 A Re... -

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Basic information

Entry
Database: PDB / ID: 1pc4
TitleCrystal Structure of the P50A mutant of ferredoxin I at 1.65 A Resolution
ComponentsFerredoxin I
KeywordsELECTRON TRANSPORT / iron-sulfur protein / ferredoxin / mutant
Function / homology
Function and homology information


3 iron, 4 sulfur cluster binding / 4 iron, 4 sulfur cluster binding / electron transfer activity / DNA binding / metal ion binding
Similarity search - Function
Ferredoxin, C-terminal / Domain of unknown function (DUF3470) / 7Fe ferredoxin / 4Fe-4S binding domain / Alpha-Beta Plaits - #20 / 4Fe-4S ferredoxin, iron-sulphur binding, conserved site / 4Fe-4S ferredoxin-type iron-sulfur binding region signature. / 4Fe-4S ferredoxin-type iron-sulfur binding domain profile. / 4Fe-4S ferredoxin-type, iron-sulphur binding domain / Alpha-Beta Plaits ...Ferredoxin, C-terminal / Domain of unknown function (DUF3470) / 7Fe ferredoxin / 4Fe-4S binding domain / Alpha-Beta Plaits - #20 / 4Fe-4S ferredoxin, iron-sulphur binding, conserved site / 4Fe-4S ferredoxin-type iron-sulfur binding region signature. / 4Fe-4S ferredoxin-type iron-sulfur binding domain profile. / 4Fe-4S ferredoxin-type, iron-sulphur binding domain / Alpha-Beta Plaits / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
FE3-S4 CLUSTER / IRON/SULFUR CLUSTER / Ferredoxin-1
Similarity search - Component
Biological speciesAzotobacter vinelandii (bacteria)
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 1.65 Å
AuthorsCamba, R. / Jung, Y.S. / Chen, K. / Hunsicker-Wang, L.M. / Burgess, B.K. / Stout, C.D. / Hirst, J. / Armstrong, F.A.
CitationJournal: Biochemistry / Year: 2003
Title: Mechanisms of redox-coupled proton transfer in proteins: role of the proximal proline in reactions of the [3Fe-4S] cluster in Azotobacter vinelandii ferredoxin I
Authors: Camba, R. / Jung, Y.S. / Hunsicker-Wang, L.M. / Burgess, B.K. / Stout, C.D. / Hirst, J. / Armstrong, F.A.
History
DepositionMay 15, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 30, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Oct 27, 2021Group: Database references / Derived calculations
Category: database_2 / pdbx_struct_conn_angle ...database_2 / pdbx_struct_conn_angle / struct_conn / 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 / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr2_auth_comp_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_id / _pdbx_struct_conn_angle.ptnr2_label_atom_id / _pdbx_struct_conn_angle.ptnr2_label_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_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_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Feb 14, 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: Ferredoxin I
hetero molecules


Theoretical massNumber of molelcules
Total (without water)12,8123
Polymers12,1651
Non-polymers6472
Water1,820101
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)55.220, 55.220, 92.720
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number92
Space group name H-MP41212

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Components

#1: Protein Ferredoxin I / / FdI


Mass: 12164.688 Da / Num. of mol.: 1 / Mutation: P50A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Azotobacter vinelandii (bacteria) / Production host: Azotobacter vinelandii (bacteria) / References: UniProt: P00214
#2: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER / Iron–sulfur cluster


Mass: 351.640 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4S4
#3: Chemical ChemComp-F3S / FE3-S4 CLUSTER / Iron–sulfur cluster


Mass: 295.795 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe3S4
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 101 / 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: 2.48 Å3/Da / Density % sol: 57.63 %
Crystal growTemperature: 298 K / Method: vapor diffusion / pH: 7.4
Details: Tris-HCl, Ammonium Sulfate, pH 7.4, VAPOR DIFFUSION, temperature 298K
Crystal grow
*PLUS
Temperature: 2 ℃ / Method: vapor diffusion
Details: Shen, B., (1993) J.Biol.Chem., 268, 25928., Stout, C.D., (1979) J.Biol.Chem., 254, 3598.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
17-10 mg/mlprotein1drop
20.5 Mpotassium phosphate1drop
31.2 Mammonium sulfate1drop
43.5 Mammonium sulfate1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU / Wavelength: 1.5408 Å
DetectorType: RIGAKU RAXIS IV / Detector: IMAGE PLATE / Date: Jul 11, 2000
RadiationMonochromator: graphite / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5408 Å / Relative weight: 1
ReflectionResolution: 1.65→38 Å / Num. all: 15962 / Num. obs: 15874 / % possible obs: 99.5 % / Observed criterion σ(F): 2 / Observed criterion σ(I): 2 / Rsym value: 0.065
Reflection shellResolution: 1.65→1.68 Å / Rsym value: 0.418 / % possible all: 93.3

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Processing

Software
NameClassification
DENZOdata reduction
SCALEPACKdata scaling
SHELXmodel building
SHELXL-97refinement
SHELXphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.65→10 Å / Num. parameters: 8700 / Num. restraintsaints: 0 / Cross valid method: FREE R / σ(F): 0 / Stereochemistry target values: Engh & Huber
Details: ANISOTROPIC REFINEMENT REDUCED FREE R (NO CUTOFF) BY 1%
RfactorNum. reflection% reflectionSelection details
Rfree0.2378 791 -RANDOM
Rwork0.1557 ---
all0.1589 15946 --
obs0.1589 15083 84.6 %-
Refine analyzeNum. disordered residues: 3 / Occupancy sum hydrogen: 0 / Occupancy sum non hydrogen: 955
Refinement stepCycle: LAST / Resolution: 1.65→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms850 0 15 101 966
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONs_anti_bump_dis_restr0.013
X-RAY DIFFRACTIONs_bond_d0.008
X-RAY DIFFRACTIONs_angle_d0.26
X-RAY DIFFRACTIONs_zero_chiral_vol0.036
X-RAY DIFFRACTIONs_from_restr_planes0.414
Software
*PLUS
Name: SHELXL / Version: 97 / Classification: refinement
Refinement
*PLUS
Rfactor Rfree: 0.238 / Rfactor Rwork: 0.156
Solvent computation
*PLUS
Displacement parameters
*PLUS

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