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- PDB-8sdl: Crystal structure of PDC-3 beta-lactamase -

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Basic information

Entry
Database: PDB / ID: 8sdl
TitleCrystal structure of PDC-3 beta-lactamase
ComponentsBeta-lactamase
KeywordsHYDROLASE / Pseudomonas-derived Cephalosporinase / antibiotic resistance
Function / homology
Function and homology information


antibiotic catabolic process / beta-lactamase activity / beta-lactamase / outer membrane-bounded periplasmic space / response to antibiotic
Similarity search - Function
Beta-lactamase, class-C active site / Beta-lactamase class-C active site. / : / Beta-lactamase-related / Beta-lactamase / Beta-lactamase/transpeptidase-like
Similarity search - Domain/homology
IMIDAZOLE / ISOPROPYL ALCOHOL / Beta-lactamase
Similarity search - Component
Biological speciesPseudomonas aeruginosa (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.75 Å
AuthorsKumar, V. / van den Akker, F.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)AI063517 United States
CitationJournal: Antimicrob.Agents Chemother. / Year: 2023
Title: Natural protein engineering in the Omega-loop: the role of Y221 in ceftazidime and ceftolozane resistance in Pseudomonas -derived cephalosporinase.
Authors: Mack, A.R. / Kumar, V. / Taracila, M.A. / Mojica, M.F. / O'Shea, M. / Schinabeck, W. / Silver, G. / Hujer, A.M. / Papp-Wallace, K.M. / Chen, S. / Haider, S. / Caselli, E. / Prati, F. / van ...Authors: Mack, A.R. / Kumar, V. / Taracila, M.A. / Mojica, M.F. / O'Shea, M. / Schinabeck, W. / Silver, G. / Hujer, A.M. / Papp-Wallace, K.M. / Chen, S. / Haider, S. / Caselli, E. / Prati, F. / van den Akker, F. / Bonomo, R.A.
History
DepositionApr 7, 2023Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 16, 2023Provider: repository / Type: Initial release
Revision 1.1Nov 1, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID
Revision 1.2Nov 22, 2023Group: Database references / Category: citation / Item: _citation.journal_volume

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Beta-lactamase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)43,5483
Polymers43,4191
Non-polymers1292
Water5,819323
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)44.869, 70.991, 106.268
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Beta-lactamase


Mass: 43419.195 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Pseudomonas aeruginosa (bacteria) / Gene: ampC / Production host: Escherichia coli (E. coli) / References: UniProt: Q4H482, beta-lactamase
#2: Chemical ChemComp-IMD / IMIDAZOLE


Mass: 69.085 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H5N2
#3: Chemical ChemComp-IPA / ISOPROPYL ALCOHOL / 2-PROPANOL


Mass: 60.095 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H8O
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 323 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestN

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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: 1.95 Å3/Da / Density % sol: 36.89 %
Crystal growTemperature: 293 K / Method: vapor diffusion, sitting drop
Details: 100 mM Imidazole pH 7.0, 2-8% isopropyl alcohol (IPA), and 16-34% PEG 3350. Protein was 10 mg/mL in 10 mM HEPES pH 7.5, 150 mM NaCl and 5% glycerol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-2 / Wavelength: 0.9201 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Jun 10, 2020
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9201 Å / Relative weight: 1
ReflectionResolution: 1.75→37.96 Å / Num. obs: 34712 / % possible obs: 99.2 % / Redundancy: 12.8 % / CC1/2: 0.996 / Rmerge(I) obs: 0.093 / Net I/σ(I): 33.37
Reflection shellResolution: 1.75→1.78 Å / Rmerge(I) obs: 0.81 / Mean I/σ(I) obs: 6.39 / Num. unique obs: 1717 / CC1/2: 0.96 / % possible all: 99.8

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Processing

Software
NameVersionClassification
REFMAC5.8.0267refinement
PDB_EXTRACT3.27data extraction
HKL-3000data reduction
SCALEPACKdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 3S22

3s22


Resolution: 1.75→37.96 Å / Cor.coef. Fo:Fc: 0.962 / Cor.coef. Fo:Fc free: 0.946 / SU B: 2.235 / SU ML: 0.072 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.117 / ESU R Free: 0.112 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : REFINED INDIVIDUALLY
RfactorNum. reflection% reflectionSelection details
Rfree0.2024 1685 4.9 %RANDOM
Rwork0.1661 ---
obs0.1679 32945 98.86 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso max: 59.62 Å2 / Biso mean: 19.379 Å2 / Biso min: 10.23 Å2
Baniso -1Baniso -2Baniso -3
1-0 Å20 Å2-0 Å2
2---0 Å2-0 Å2
3---0 Å2
Refinement stepCycle: final / Resolution: 1.75→37.96 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2783 0 9 323 3115
Biso mean--35.02 30.12 -
Num. residues----359
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0060.0132929
X-RAY DIFFRACTIONr_bond_other_d0.0010.0172788
X-RAY DIFFRACTIONr_angle_refined_deg1.3741.653993
X-RAY DIFFRACTIONr_angle_other_deg1.3341.5786407
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.6135376
X-RAY DIFFRACTIONr_dihedral_angle_2_deg31.5821.296162
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.64915466
X-RAY DIFFRACTIONr_dihedral_angle_4_deg12.7181525
X-RAY DIFFRACTIONr_chiral_restr0.0650.2361
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.023408
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02714
LS refinement shellResolution: 1.75→1.795 Å / Rfactor Rfree error: 0 / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.276 126 -
Rwork0.202 2331 -
all-2457 -
obs--95.94 %

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