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- PDB-4rdb: Crystal structure of an immunoreactive 32 kDa antigen PG49 (PG_01... -

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Basic information

Entry
Database: PDB / ID: 4rdb
TitleCrystal structure of an immunoreactive 32 kDa antigen PG49 (PG_0181) from Porphyromonas gingivalis W83 at 1.45 A resolution (PSI Community Target, Nakayama)
ComponentsImmunoreactive 32 kDa antigen PG49
KeywordsSTRUCTURAL GENOMICS / UNKNOWN FUNCTION / Putative cell adhesion protein / PF16249 family / DUF4906 / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-BIOLOGY
Function / homology
Function and homology information


pilus / cell outer membrane
Similarity search - Function
Minor fimbrium tip subunit MfA4, C-terminal / Immunoglobulin-like - #2580 / Major fimbrial subunit protein, N-terminal / Major fimbrial subunit protein (FimA) / Prokaryotic membrane lipoprotein lipid attachment site profile. / Immunoglobulin-like / Sandwich / Mainly Beta
Similarity search - Domain/homology
ACETONE / Minor fimbrium tip subunit MfA4
Similarity search - Component
Biological speciesPorphyromonas gingivalis (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 1.45 Å
AuthorsJoint Center for Structural Genomics (JCSG)
CitationJournal: Cell / Year: 2016
Title: A Distinct Type of Pilus from the Human Microbiome.
Authors: Xu, Q. / Shoji, M. / Shibata, S. / Naito, M. / Sato, K. / Elsliger, M.A. / Grant, J.C. / Axelrod, H.L. / Chiu, H.J. / Farr, C.L. / Jaroszewski, L. / Knuth, M.W. / Deacon, A.M. / Godzik, A. / ...Authors: Xu, Q. / Shoji, M. / Shibata, S. / Naito, M. / Sato, K. / Elsliger, M.A. / Grant, J.C. / Axelrod, H.L. / Chiu, H.J. / Farr, C.L. / Jaroszewski, L. / Knuth, M.W. / Deacon, A.M. / Godzik, A. / Lesley, S.A. / Curtis, M.A. / Nakayama, K. / Wilson, I.A.
History
DepositionSep 18, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Dec 3, 2014Provider: repository / Type: Initial release
Revision 1.1Nov 22, 2017Group: Refinement description / Category: software / Item: _software.classification / _software.name
Revision 1.2Jan 24, 2018Group: Database references / Category: citation_author / Item: _citation_author.name
Revision 1.3Apr 22, 2020Group: Database references / Derived calculations / Category: citation / citation_author / struct_conn
Item: _citation.journal_abbrev / _citation.journal_id_CSD ..._citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _struct_conn.pdbx_leaving_atom_flag
Revision 1.4Feb 1, 2023Group: Database references / Derived calculations / Category: database_2 / 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 / _struct_ref_seq_dif.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: Immunoreactive 32 kDa antigen PG49
hetero molecules


Theoretical massNumber of molelcules
Total (without water)34,99915
Polymers34,1341
Non-polymers86514
Water7,566420
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)39.636, 86.821, 90.645
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121
DetailsCRYSTAL PACKING ANALYSIS SUGGESTS THE ASSIGNMENT OF A MONOMER AS THE SIGNIFICANT OLIGOMERIZATION STATE.

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Components

#1: Protein Immunoreactive 32 kDa antigen PG49


Mass: 34133.809 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Porphyromonas gingivalis (bacteria) / Strain: W83 / Gene: PG_0181 / Plasmid: SpeedET / Production host: Escherichia Coli (E. coli) / Strain (production host): PB1 / References: UniProt: Q7MXK0
#2: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 13 / Source method: obtained synthetically / Formula: C2H6O2
#3: Chemical ChemComp-ACN / ACETONE


Mass: 58.079 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H6O
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 420 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsTHIS CONSTRUCT WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS ...THIS CONSTRUCT WAS EXPRESSED WITH AN N-TERMINAL PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY RESIDUES 30-333 OF THE TARGET SEQUENCE.

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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: 2.28 Å3/Da / Density % sol: 46.16 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop / pH: 9
Details: 0.17M sodium acetate, 15.0% Glycerol, 28.5% polyethylene glycol 4000, 4.0% Acetone, 0.1M TRIS pH 9.0, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL12-2 / Wavelength: 0.9184,0.9791
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Jul 28, 2014
Details: Rhodium-coated vertical and horizontal focusing mirrors; liquid-nitrogen cooled double crystal Si(111) monochromator
RadiationMonochromator: double crystal Si(111) / Protocol: MAD / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelength
IDWavelength (Å)Relative weight
10.91841
20.97911
ReflectionResolution: 1.45→43.411 Å / Num. obs: 55908 / % possible obs: 99.1 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 11.182 Å2 / Rmerge(I) obs: 0.083 / Net I/σ(I): 13.38
Reflection shell

Diffraction-ID: 1

Resolution (Å)Highest resolution (Å)Rmerge(I) obsMean I/σ(I) obsNum. measured obsNum. unique obs% possible all
1.45-1.50.7142.319899526498.3
1.5-1.560.5773.122870551399
1.56-1.630.4563.922443549599.2
1.63-1.720.333523131578899
1.72-1.830.2277.122022563299.3
1.83-1.970.14910.422828551999.7
1.97-2.170.09115.422709560199.5
2.17-2.480.06619.622169554699.1
2.48-3.120.04725.622804563599.4
3.120.02739.222840592898.7

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Phasing

PhasingMethod: MAD

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Processing

Software
NameVersionClassificationNB
MolProbity3beta29model building
PDB_EXTRACT3.1data extraction
SHELXphasing
SHARPphasing
XSCALEJanuary 10, 2014 BUILT=20140307data scaling
REFMAC5.8.0073refinement
XDSdata reduction
SHELXDphasing
RefinementMethod to determine structure: MAD / Resolution: 1.45→43.411 Å / Cor.coef. Fo:Fc: 0.981 / Cor.coef. Fo:Fc free: 0.971 / Occupancy max: 1 / Occupancy min: 0.23 / SU B: 2.332 / SU ML: 0.038 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.058 / ESU R Free: 0.055
Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES
Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE ...Details: 1. HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. 2. A MET-INHIBITION PROTOCOL WAS USED FOR SELENOMETHIONINE INCORPORATION DURING PROTEIN EXPRESSION. THE OCCUPANCY OF THE SE ATOMS IN THE MSE RESIDUES WAS REDUCED TO 0.75 FOR THE REDUCED SCATTERING POWER DUE TO PARTIAL S-MET INCORPORATION. 3. EDO AND ACETONE (ACN) MODELED WAS PRESENT IN CRYSTALLIZATION/CRYO CONDITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.1569 2833 5.1 %RANDOM
Rwork0.1171 ---
obs0.1191 55846 99.14 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 116.63 Å2 / Biso mean: 15.1539 Å2 / Biso min: 4.48 Å2
Baniso -1Baniso -2Baniso -3
1-0.38 Å20 Å20 Å2
2--0.39 Å2-0 Å2
3----0.77 Å2
Refinement stepCycle: LAST / Resolution: 1.45→43.411 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2383 0 56 420 2859
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0130.022593
X-RAY DIFFRACTIONr_bond_other_d0.0020.022519
X-RAY DIFFRACTIONr_angle_refined_deg1.6051.9793529
X-RAY DIFFRACTIONr_angle_other_deg0.77935818
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.4155337
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.03524.561114
X-RAY DIFFRACTIONr_dihedral_angle_3_deg10.89715422
X-RAY DIFFRACTIONr_dihedral_angle_4_deg17.9571516
X-RAY DIFFRACTIONr_chiral_restr0.0960.2403
X-RAY DIFFRACTIONr_gen_planes_refined0.0070.0212906
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02562
X-RAY DIFFRACTIONr_mcbond_it1.7290.9891256
X-RAY DIFFRACTIONr_mcbond_other1.7280.9881254
X-RAY DIFFRACTIONr_mcangle_it1.9751.4881575
X-RAY DIFFRACTIONr_rigid_bond_restr11.70335112
X-RAY DIFFRACTIONr_sphericity_free29.4183133
X-RAY DIFFRACTIONr_sphericity_bonded9.54235361
LS refinement shellResolution: 1.45→1.488 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.263 194 -
Rwork0.221 3826 -
all-4020 -
obs--98.02 %

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