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- PDB-4qb7: Crystal structure of a fimbrial protein (BVU_2522) from Bacteroid... -

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Basic information

Entry
Database: PDB / ID: 4qb7
TitleCrystal structure of a fimbrial protein (BVU_2522) from Bacteroides vulgatus ATCC 8482 at 2.55 A resolution
ComponentsUncharacterized protein
KeywordsCELL ADHESION / fimbrial protein / PF13149 family / DUF3988 / Structural Genomics / Joint Center for Structural Genomics / JCSG / Protein Structure Initiative / PSI-BIOLOGY
Function / homologyFimbrillin-like 1, N-terminal / Fimbrillin-like 1 / Fimbrillin-like / pilus / cell outer membrane / Prokaryotic membrane lipoprotein lipid attachment site profile. / Fimbrium subunit Fim1C
Function and homology information
Biological speciesBacteroides vulgatus (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MAD / Resolution: 2.55 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
DepositionMay 6, 2014Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 2, 2014Provider: repository / Type: Initial release
Revision 1.1Dec 24, 2014Group: Structure summary
Revision 1.2Nov 22, 2017Group: Refinement description / Category: software
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

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Assembly

Deposited unit
A: Uncharacterized protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,24324
Polymers40,3971
Non-polymers1,84623
Water5,080282
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)54.220, 186.120, 211.830
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number23
Space group name H-MI222
DetailsCRYSTAL PACKING ANALYSIS SUGGESTS THE ASSIGNMENT OF A MONOMER AS THE SIGNIFICANT OLIGOMERIZATION STATE.

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Components

#1: Protein Uncharacterized protein


Mass: 40397.410 Da / Num. of mol.: 1 / Fragment: UNP residues 22-379
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bacteroides vulgatus (bacteria) / Strain: ATCC 8482 / DSM 1447 / NCTC 11154 / Gene: BVU_2522 / Plasmid: SpeedET / Production host: Escherichia coli (E. coli) / Strain (production host): PB1 / References: UniProt: A6L3B5
#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 17 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Cl
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 282 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsTHE CONSTRUCT (22-379) WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS ...THE CONSTRUCT (22-379) WAS EXPRESSED WITH A PURIFICATION TAG MGSDKIHHHHHHENLYFQG. THE TAG WAS REMOVED WITH TEV PROTEASE LEAVING ONLY A GLYCINE (0) FOLLOWED BY 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

Crystal growTemperature: 277 K / Method: vapor diffusion, sitting drop / pH: 6.5
Details: 0.20M sodium chloride, 2.00M ammonium sulfate, 0.1M sodium cacodylate pH 6.5, NANODROP, VAPOR DIFFUSION, SITTING DROP, temperature 277K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL14-1 / Wavelength: 0.95369,0.97934,0.97919
DetectorType: MARMOSAIC 325 mm CCD / Detector: CCD / Date: Mar 6, 2014
Details: Vertical focusing mirror; 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
10.953691
20.979341
30.979191
ReflectionResolution: 2.55→46.607 Å / Num. obs: 35435 / % possible obs: 99.4 % / Observed criterion σ(I): -3 / Biso Wilson estimate: 61.124 Å2 / Rmerge(I) obs: 0.087 / Net I/σ(I): 12.21
Reflection shell
Resolution (Å)Rmerge(I) obsMean I/σ(I) obsNum. measured obsNum. unique obsDiffraction-ID% possible all
2.55-2.640.7761.81299334591100
2.64-2.750.5772.4135983646199.9
2.75-2.870.423.41268133921100
2.87-3.020.3074.61302634921100
3.02-3.210.1877.2132693549199.9
3.21-3.460.1111.4131023534199.7
3.46-3.80.07316.1127363481199.6
3.8-4.350.05221131073580199.6
4.35-5.460.0425.1130383572199.1
5.46-46.6070.03727.7134213730196.9

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Phasing

PhasingMethod: MAD

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Processing

Software
NameVersionClassificationNB
MolProbity3beta29model building
PDB_EXTRACT3.1data extraction
SHELXphasing
SHARPphasing
XSCALEdata scaling
BUSTER-TNT2.10.0refinement
XDSdata reduction
SHELXDphasing
BUSTER2.10.0refinement
RefinementMethod to determine structure: MAD / Resolution: 2.55→46.607 Å / Cor.coef. Fo:Fc: 0.9488 / Cor.coef. Fo:Fc free: 0.9292 / Occupancy max: 1 / Occupancy min: 0.5 / Cross valid method: THROUGHOUT / σ(F): 0
Details: 1. 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 ...Details: 1. 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. 2. ATOM RECORD CONTAINS SUM OF TLS AND RESIDUAL B FACTORS. ANISOU RECORD CONTAINS SUM OF TLS AND RESIDUAL U FACTORS. 3. THE MAD PHASES WERE USED AS RESTRAINTS DURING REFINEMENT. 4. SULFATE(SO4) AND CHLORIDE (CL) IONS MODELED WERE PRESENT IN CRYSTALLIZATION CONDITIONS. 5. RAMACHANDRAN OUTLIER (A357) IS SUPPORTED BY DENSITY.
RfactorNum. reflection% reflectionSelection details
Rfree0.1966 1776 5.01 %RANDOM
Rwork0.168 ---
obs0.1694 35430 99.47 %-
Displacement parametersBiso max: 142.66 Å2 / Biso mean: 54.1948 Å2 / Biso min: 31.06 Å2
Baniso -1Baniso -2Baniso -3
1-6.1063 Å20 Å20 Å2
2---6.1373 Å20 Å2
3---0.031 Å2
Refine analyzeLuzzati coordinate error obs: 0.323 Å
Refinement stepCycle: LAST / Resolution: 2.55→46.607 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2626 0 91 282 2999
Refine LS restraints
Refine-IDTypeNumberRestraint functionWeightDev ideal
X-RAY DIFFRACTIONt_dihedral_angle_d1226SINUSOIDAL2
X-RAY DIFFRACTIONt_trig_c_planes80HARMONIC2
X-RAY DIFFRACTIONt_gen_planes376HARMONIC5
X-RAY DIFFRACTIONt_it2757HARMONIC20
X-RAY DIFFRACTIONt_nbd
X-RAY DIFFRACTIONt_improper_torsion
X-RAY DIFFRACTIONt_pseud_angle
X-RAY DIFFRACTIONt_chiral_improper_torsion385SEMIHARMONIC5
X-RAY DIFFRACTIONt_sum_occupancies
X-RAY DIFFRACTIONt_utility_distance
X-RAY DIFFRACTIONt_utility_angle
X-RAY DIFFRACTIONt_utility_torsion
X-RAY DIFFRACTIONt_ideal_dist_contact3091SEMIHARMONIC4
X-RAY DIFFRACTIONt_bond_d2757HARMONIC20.01
X-RAY DIFFRACTIONt_angle_deg3765HARMONIC21.21
X-RAY DIFFRACTIONt_omega_torsion4.04
X-RAY DIFFRACTIONt_other_torsion2.83
LS refinement shellResolution: 2.55→2.62 Å / Total num. of bins used: 18
RfactorNum. reflection% reflection
Rfree0.2505 150 5.19 %
Rwork0.223 2740 -
all0.2244 2890 -
obs--99.47 %
Refinement TLS params.Method: refined / Origin x: 11.83 Å / Origin y: 67.9638 Å / Origin z: 33.7638 Å
111213212223313233
T-0.0318 Å20.0146 Å20.0052 Å2-0.0091 Å20.1316 Å2---0.0342 Å2
L0.7374 °20.8169 °2-0.7714 °2-1.2026 °2-1.1915 °2--1.4875 °2
S0.0163 Å °-0.1474 Å °-0.1037 Å °-0.046 Å °0.0944 Å °0.1332 Å °-0.0664 Å °-0.0452 Å °-0.1107 Å °
Refinement TLS groupSelection details: {A|31 - 368}

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