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- PDB-8pcm: Structure of serine-beta-lactamase CTX-M-14 following the time-re... -

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Basic information

Entry
Database: PDB / ID: 8pcm
TitleStructure of serine-beta-lactamase CTX-M-14 following the time-resolved active site binding of boric acid and subsequent glycerol-boric acid-ester formation, 80 ms
ComponentsBeta-lactamase
KeywordsHYDROLASE / catalytic activity / beta-lactamase activity / hydrolase activity / inhibitor / time-resolved / tape drive
Function / homology
Function and homology information


beta-lactam antibiotic catabolic process / beta-lactamase activity / beta-lactamase / response to antibiotic
Similarity search - Function
Beta-lactamase, class-A active site / Beta-lactamase class-A active site. / Beta-lactamase class A, catalytic domain / Beta-lactamase enzyme family / Beta-lactamase, class-A / Beta-lactamase/transpeptidase-like
Similarity search - Domain/homology
BORATE ION / Chem-YCH / Beta-lactamase
Similarity search - Component
Biological speciesKlebsiella pneumoniae (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.84 Å
AuthorsPrester, A. / Perbandt, M. / Galchenkova, M. / Oberthuer, D. / Yefanov, O. / Hinrichs, W. / Rohde, H. / Betzel, C.
Funding support Germany, 3items
OrganizationGrant numberCountry
Joachim Herz Stiftung Germany
German Federal Ministry for Education and Research Germany
German Research Foundation (DFG) Germany
CitationJournal: To Be Published
Title: Time resolved crystallography of boric acid binding to the active site serine of the beta-lactamase CTX-M-14 and subsequent 1,2-diol esterification
Authors: Prester, A. / Perbandt, M. / Galchenkova, M. / Oberthuer, D. / Werner, N. / Henkel, A. / Maracke, J. / Yefanov, O. / Hakanpaeae, J. / Pompidor, G. / Meyer, J. / Chapman, H. / Aepfelbacher, M. ...Authors: Prester, A. / Perbandt, M. / Galchenkova, M. / Oberthuer, D. / Werner, N. / Henkel, A. / Maracke, J. / Yefanov, O. / Hakanpaeae, J. / Pompidor, G. / Meyer, J. / Chapman, H. / Aepfelbacher, M. / Hinrichs, W. / Rohde, H. / Betzel, C.
History
DepositionJun 11, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jun 26, 2024Provider: repository / Type: Initial release

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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)28,2934
Polymers28,0011
Non-polymers2933
Water3,765209
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: light scattering
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area280 Å2
ΔGint-21 kcal/mol
Surface area10540 Å2
Unit cell
Length a, b, c (Å)41.840, 41.840, 233.280
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number154
Space group name H-MP3221
Space group name HallP322"
Symmetry operation#1: x,y,z
#2: -y,x-y,z+2/3
#3: -x+y,-x,z+1/3
#4: x-y,-y,-z+1/3
#5: -x,-x+y,-z+2/3
#6: y,x,-z

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Components

#1: Protein Beta-lactamase


Mass: 28000.547 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Klebsiella pneumoniae (bacteria) / Gene: ctx-m-14 / Production host: Escherichia coli (E. coli) / References: UniProt: D2D9A0, beta-lactamase
#2: Chemical ChemComp-YCH / [(4~{S})-2-oxidanyl-1,3,2-dioxaborolan-4-yl]methanol


Mass: 117.896 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C3H7BO4 / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical ChemComp-BO4 / BORATE ION


Mass: 78.840 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: BH4O4 / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 209 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY

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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: 2.11 Å3/Da / Density % sol: 41.57 %
Crystal growTemperature: 293 K / Method: batch mode
Details: 50% CTX-M-14 solution (22 mg/ml) was mixed with 45% precipitant solution (40% PEG8000, 200mM lithium sulfate, 100mM sodium acetate, pH 4.5) and with 5% undiluted seed stock in batch crystallization setups

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Data collection

DiffractionMean temperature: 295 K / Serial crystal experiment: Y
Diffraction sourceSource: SYNCHROTRON / Site: PETRA III, DESY / Beamline: P11 / Wavelength: 1.033 Å
DetectorType: DECTRIS EIGER2 X 16M / Detector: PIXEL / Date: Mar 27, 2021
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.033 Å / Relative weight: 1
ReflectionResolution: 1.84→38.88 Å / Num. obs: 21824 / % possible obs: 100 % / Redundancy: 3113 % / Biso Wilson estimate: 38.76 Å2 / CC1/2: 0.998 / CC star: 0.999 / Net I/σ(I): 10.73
Reflection shellResolution: 1.84→1.86 Å / Num. unique obs: 1402 / CC1/2: 0.195 / CC star: 0.572
Serial crystallography sample deliveryDescription: CFEL TapeDrive / Method: injection

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Processing

Software
NameVersionClassification
PHENIX1.20.1_4487refinement
CrystFELdata reduction
CrystFELdata scaling
PHENIXphasing
Cootmodel building
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 1.84→38.88 Å / SU ML: 0.3215 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 25.4642
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2096 1252 5.8 %
Rwork0.1647 20338 -
obs0.1673 21590 99.3 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 45.42 Å2
Refinement stepCycle: LAST / Resolution: 1.84→38.88 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1949 0 17 209 2175
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00282088
X-RAY DIFFRACTIONf_angle_d0.62192862
X-RAY DIFFRACTIONf_chiral_restr0.0394337
X-RAY DIFFRACTIONf_plane_restr0.0032379
X-RAY DIFFRACTIONf_dihedral_angle_d12.859786
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
1.84-1.910.48441320.46732210X-RAY DIFFRACTION98.65
1.91-20.32111350.31322183X-RAY DIFFRACTION98.89
2-2.110.39641280.33342181X-RAY DIFFRACTION98.93
2.11-2.240.26471370.20252216X-RAY DIFFRACTION99.75
2.24-2.410.2181400.18092258X-RAY DIFFRACTION99.83
2.41-2.650.22041420.17742260X-RAY DIFFRACTION99.83
2.65-3.040.21691440.15672275X-RAY DIFFRACTION99.92
3.04-3.830.17641420.13252330X-RAY DIFFRACTION99.88
3.83-38.880.17511520.13092425X-RAY DIFFRACTION98.13

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