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- PDB-2co4: Salmonella enterica SafA pilin in complex with a 19-residue SafA ... -

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Basic information

Entry
Database: PDB / ID: 2co4
TitleSalmonella enterica SafA pilin in complex with a 19-residue SafA Nte peptide
Components(PUTATIVE OUTER MEMBRANE PROTEIN) x 2
KeywordsFIBRIL PROTEIN / PILUS SUBUNIT ADHESION PATHOGENESIS / FOLD COMPLEMENTATION
Function / homology
Function and homology information


Saf-pilin pilus formation protein / Saf-pilin pilus formation protein / Dr adhesin / Dr-adhesin superfamily / Adhesion domain superfamily / Prokaryotic membrane lipoprotein lipid attachment site profile. / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
Outer membrane protein
Similarity search - Component
Biological speciesSALMONELLA TYPHIMURIUM (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.85 Å
AuthorsRemaut, H. / Rose, R.J. / Hannan, T.J. / Hultgren, S.J. / Radford, S.E. / Ashcroft, A.E. / Waksman, G.
CitationJournal: Mol.Cell / Year: 2006
Title: Donor-Strand Exchange in Chaperone-Assisted Pilus Assembly Proceeds Through a Concerted Beta-Strand Displacement Mechanism
Authors: Remaut, H. / Rose, R.J. / Hannan, T.J. / Hultgren, S.J. / Radford, S.E. / Ashcroft, A.E. / Waksman, G.
History
DepositionMay 25, 2006Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 28, 2006Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / 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
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: PUTATIVE OUTER MEMBRANE PROTEIN
B: PUTATIVE OUTER MEMBRANE PROTEIN


Theoretical massNumber of molelcules
Total (without water)15,3042
Polymers15,3042
Non-polymers00
Water2,360131
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)69.055, 69.055, 127.356
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number178
Space group name H-MP6122
Components on special symmetry positions
IDModelComponents
11A-2015-

HOH

DetailsFOR THE HETERO-ASSEMBLY DESCRIBED BY REMARK 350THE N-TERMINAL EXTENSION PEPTIDE OF ONE SUBUNIT, CHAIN B,INSERTS INTO THE FOLD OF ANOTHER, CHAIN A. THIS INTERACTIONIS REPETED IN THE POLYMER, AN N-TERMINAL EXTENSION OFMOLECULE C WOULD INSERT IN TO THE SUBUNIT OF MOLECULE B , DINTO C ETC

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Components

#1: Protein PUTATIVE OUTER MEMBRANE PROTEIN / SAFA PILUS SUBUNIT


Mass: 13136.663 Da / Num. of mol.: 1 / Fragment: CORE PILIN DOMAIN, NTE DELETED, RESIDUES 48-170
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) SALMONELLA TYPHIMURIUM (bacteria) / Strain: LT2 / Plasmid: PTRC99A / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): C600 / References: UniProt: Q8ZRK4
#2: Protein/peptide PUTATIVE OUTER MEMBRANE PROTEIN / SAFA N-TERMINAL EXTENSION


Mass: 2167.352 Da / Num. of mol.: 1 / Fragment: N-TERMINAL EXTENSION, RESIDUES 27-46 / Source method: obtained synthetically / Source: (synth.) SALMONELLA TYPHIMURIUM (bacteria) / References: UniProt: Q8ZRK4
#3: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 131 / 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: 2.86 Å3/Da / Density % sol: 57.05 %
Crystal growpH: 4.6
Details: 2 M AMMONIUM SULPHATE, 100 MM SODIUM ACETATE PH 4.6

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID14-1 / Wavelength: 1.0726
DetectorType: ADSC CCD / Detector: CCD
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.0726 Å / Relative weight: 1
ReflectionResolution: 1.85→25 Å / Num. obs: 16070 / % possible obs: 100 % / Observed criterion σ(I): 0 / Redundancy: 10.3 % / Rmerge(I) obs: 0.08 / Net I/σ(I): 22.1
Reflection shellResolution: 1.85→1.95 Å / Redundancy: 10.5 % / Rmerge(I) obs: 0.31 / Mean I/σ(I) obs: 6.4 / % possible all: 100

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Processing

Software
NameVersionClassification
REFMAC5.2.0019refinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2CO3

2co3


Resolution: 1.85→20 Å / Cor.coef. Fo:Fc: 0.956 / Cor.coef. Fo:Fc free: 0.938 / SU B: 4.114 / SU ML: 0.066 / Cross valid method: THROUGHOUT / ESU R: 0.112 / ESU R Free: 0.107 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.2 804 5 %RANDOM
Rwork0.172 ---
obs0.173 15203 100 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 17.79 Å2
Baniso -1Baniso -2Baniso -3
1-0.15 Å20.08 Å20 Å2
2--0.15 Å20 Å2
3----0.23 Å2
Refinement stepCycle: LAST / Resolution: 1.85→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1060 0 0 131 1191
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0130.0221128
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.3921.9611551
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.4125157
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.42825.95242
X-RAY DIFFRACTIONr_dihedral_angle_3_deg13.315194
X-RAY DIFFRACTIONr_dihedral_angle_4_deg9.805154
X-RAY DIFFRACTIONr_chiral_restr0.1080.2190
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.02842
X-RAY DIFFRACTIONr_gen_planes_other
X-RAY DIFFRACTIONr_nbd_refined0.1980.2438
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined0.2970.2778
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1130.285
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1930.223
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.0980.214
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.9031.5753
X-RAY DIFFRACTIONr_mcbond_other
X-RAY DIFFRACTIONr_mcangle_it1.5321207
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it2.4643426
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it4.0664.5335
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: 1.85→1.9 Å / Total num. of bins used: 20 /
RfactorNum. reflection
Rfree0.224 63
Rwork0.2 1089

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