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- PDB-4toe: 2.20A resolution structure of Iron Bound BfrB (D34F) from Pseudom... -

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Basic information

Entry
Database: PDB / ID: 4toe
Title2.20A resolution structure of Iron Bound BfrB (D34F) from Pseudomonas aeruginosa
ComponentsBacterioferritin
KeywordsOXIDOREDUCTASE / ELECTRON TRANSPORT / IRON STORAGE / iron binding / iron mobilization
Function / homology
Function and homology information


iron ion sequestering activity / ferritin complex / ferroxidase / ferroxidase activity / ferric iron binding / iron ion transport / intracellular iron ion homeostasis / iron ion binding / heme binding / cytosol
Similarity search - Function
Bacterioferritin signature. / Bacterioferritin / Ferritin, core subunit, four-helix bundle / Ferritin / Ferritin-like diiron domain / Ferritin-like diiron domain profile. / Ferritin/DPS protein domain / Ferritin-like domain / Ferritin-like / Ferritin-like superfamily ...Bacterioferritin signature. / Bacterioferritin / Ferritin, core subunit, four-helix bundle / Ferritin / Ferritin-like diiron domain / Ferritin-like diiron domain profile. / Ferritin/DPS protein domain / Ferritin-like domain / Ferritin-like / Ferritin-like superfamily / Up-down Bundle / Mainly Alpha
Similarity search - Domain/homology
: / PROTOPORPHYRIN IX CONTAINING FE / : / Bacterioferritin BfrB
Similarity search - Component
Biological speciesPseudomonas aeruginosa (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / molecular replacement / Resolution: 2.2 Å
AuthorsLovell, S. / Battaile, K.P. / Yao, H. / Kumar, R. / Eshelman, K. / Rivera, M.
Funding support United States, 1items
OrganizationGrant numberCountry
National Science Foundation (NSF, United States)MCB-1158469 United States
CitationJournal: Biochemistry / Year: 2015
Title: Concerted motions networking pores and distant ferroxidase centers enable bacterioferritin function and iron traffic.
Authors: Yao, H. / Rui, H. / Kumar, R. / Eshelman, K. / Lovell, S. / Battaile, K.P. / Im, W. / Rivera, M.
History
DepositionJun 5, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 11, 2015Provider: repository / Type: Initial release
Revision 1.1Mar 18, 2015Group: Database references
Revision 1.2Sep 20, 2017Group: Author supporting evidence / Database references ...Author supporting evidence / Database references / Derived calculations / Other / Refinement description / Source and taxonomy
Category: citation / entity_src_gen ...citation / entity_src_gen / pdbx_audit_support / pdbx_database_status / pdbx_struct_oper_list / software
Item: _citation.journal_id_CSD / _entity_src_gen.pdbx_alt_source_flag ..._citation.journal_id_CSD / _entity_src_gen.pdbx_alt_source_flag / _pdbx_audit_support.funding_organization / _pdbx_database_status.pdb_format_compatible / _pdbx_struct_oper_list.symmetry_operation
Revision 1.3Nov 27, 2019Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.4Sep 27, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / diffrn_radiation_wavelength / pdbx_initial_refinement_model / pdbx_struct_conn_angle / refine_hist / struct_conn
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_asym_id / _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_asym_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_asym_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.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _refine_hist.pdbx_number_atoms_nucleic_acid / _refine_hist.pdbx_number_atoms_protein / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _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_asym_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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Bacterioferritin
B: Bacterioferritin
C: Bacterioferritin
D: Bacterioferritin
E: Bacterioferritin
F: Bacterioferritin
G: Bacterioferritin
H: Bacterioferritin
I: Bacterioferritin
J: Bacterioferritin
K: Bacterioferritin
L: Bacterioferritin
M: Bacterioferritin
N: Bacterioferritin
O: Bacterioferritin
P: Bacterioferritin
Q: Bacterioferritin
R: Bacterioferritin
S: Bacterioferritin
T: Bacterioferritin
U: Bacterioferritin
V: Bacterioferritin
W: Bacterioferritin
X: Bacterioferritin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)463,137194
Polymers446,69424
Non-polymers16,443170
Water41,0382278
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)125.493, 203.403, 207.251
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121
DetailsThe asymmetric unit contains one biological unit

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Components

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Protein , 1 types, 24 molecules ABCDEFGHIJKLMNOPQRSTUVWX

#1: Protein ...
Bacterioferritin


Mass: 18612.254 Da / Num. of mol.: 24 / Mutation: D34F
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa (bacteria) / Strain: ATCC 15692 / PAO1 / 1C / PRS 101 / LMG 12228 / Gene: bfrB, PA3531 / Plasmid: pET11a / Production host: Escherichia coli (E. coli) / Strain (production host): ARCTIC EXPRESS RIL / References: UniProt: Q9HY79, ferroxidase

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Non-polymers , 5 types, 2448 molecules

#2: Chemical...
ChemComp-FE2 / FE (II) ION


Mass: 55.845 Da / Num. of mol.: 144 / Source method: obtained synthetically / Formula: Fe
#3: Chemical
ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 12 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#4: Chemical
ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: K
#5: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: SO4
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 2278 / 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

CrystalColour: Red Prism / Density Matthews: 2.96 Å3/Da / Density % sol: 58.46 %
Description: THE STRUCTURE FACTOR FILE CONTAINS FRIEDEL PAIRS
Crystal growTemperature: 293 K / Method: vapor diffusion / pH: 6 / Details: 35% (v/v) MPD, 0.1M MES, 0.2M Lithium Sulfate

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 17-ID / Wavelength: 1.73769 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Nov 12, 2011
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.73769 Å / Relative weight: 1
ReflectionResolution: 2.2→49.39 Å / Num. obs: 257692 / % possible obs: 96.3 % / Redundancy: 5.8 % / Biso Wilson estimate: 21.55 Å2 / CC1/2: 0.998 / Rmerge(I) obs: 0.078 / Rpim(I) all: 0.034 / Net I/σ(I): 18.1 / Num. measured all: 1490791
Reflection shell

Diffraction-ID: 1 / Rejects: _

Resolution (Å)Redundancy (%)Rmerge(I) obsMean I/σ(I) obsNum. measured allNum. unique allCC1/2Rpim(I) all% possible all
2.2-2.242.40.2843.42277693480.8550.21471.8
12.05-49.3960.05841.81080618030.9980.02598.5

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Phasing

PhasingMethod: molecular replacement

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Processing

Software
NameVersionClassification
Aimless0.1.29data scaling
MOLREPphasing
XDSdata scaling
PDB_EXTRACT3.14data extraction
Cootmodel building
PHENIX(phenix.refine: dev_1450)refinement
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3IS7

3is7


Resolution: 2.2→48.39 Å / SU ML: 0.19 / Cross valid method: FREE R-VALUE / σ(F): 1.92 / Phase error: 18.11 / Stereochemistry target values: ML / Details: THE FRIEDEL PAIRS WERE USED IN REFINEMENT
RfactorNum. reflection% reflection
Rfree0.1874 24416 5.03 %
Rwork0.1493 461006 -
obs0.1513 485422 93.32 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 80.48 Å2 / Biso mean: 24.7504 Å2 / Biso min: 10.77 Å2
Refinement stepCycle: final / Resolution: 2.2→48.39 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms30262 0 706 2278 33246
Biso mean--30.41 31.21 -
Num. residues----3700
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0131422
X-RAY DIFFRACTIONf_angle_d0.98542558
X-RAY DIFFRACTIONf_chiral_restr0.0424612
X-RAY DIFFRACTIONf_plane_restr0.0065452
X-RAY DIFFRACTIONf_dihedral_angle_d16.79111622
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Total num. of bins used: 30

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all% reflection obs (%)
2.2-2.2250.23844660.20869276974256
2.225-2.25120.2535390.1897102531079262
2.2512-2.27860.246100.1835109981160867
2.2786-2.30750.21276860.1742118501253672
2.3075-2.33780.21986160.1627129701358678
2.3378-2.36990.20567400.1698138211456184
2.3699-2.40370.20298000.1559148661566690
2.4037-2.43960.20438810.1511158061668796
2.4396-2.47770.20648680.1488163501721899
2.4777-2.51830.19768440.14921646617310100
2.5183-2.56180.21199070.14891641517322100
2.5618-2.60830.20899030.14931639017293100
2.6083-2.65850.21728680.14061640317271100
2.6585-2.71280.1938850.14821640917294100
2.7128-2.77170.20228690.15181637017239100
2.7717-2.83620.20038360.14251645317289100
2.8362-2.90710.18698490.14221655717406100
2.9071-2.98570.1987970.15181650517302100
2.9857-3.07360.20149240.16151637417298100
3.0736-3.17280.22438480.16191639117239100
3.1728-3.28610.19148510.15921647817329100
3.2861-3.41770.18348940.14591638417278100
3.4177-3.57320.18398620.14041644717309100
3.5732-3.76150.1688170.1391645417271100
3.7615-3.9970.1638910.13631637417265100
3.997-4.30550.1499290.1176163181724799
4.3055-4.73840.14488260.11941646117287100
4.7384-5.42330.17258940.15121637917273100
5.4233-6.82970.21898160.1951164181723499
6.8297-48.40130.16169000.1592163701727099

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