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- PDB-8akk: Acyl-enzyme complex of imipenem bound to deacylation mutant KPC-2... -

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Basic information

Entry
Database: PDB / ID: 8akk
TitleAcyl-enzyme complex of imipenem bound to deacylation mutant KPC-2 (E166Q)
ComponentsCarbapenem-hydrolyzing beta-lactamase KPC
KeywordsANTIMICROBIAL PROTEIN / acyl-enzyme complex / antibiotic resistance / beta-lactamase / antibiotic / ligand
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, catalytic domain / Beta-lactamase enzyme family / Beta-lactamase, class-A / Beta-lactamase/transpeptidase-like
Similarity search - Domain/homology
Chem-HIW / Imipenem / Carbapenem-hydrolyzing beta-lactamase KPC
Similarity search - Component
Biological speciesKlebsiella pneumoniae (bacteria)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.36 Å
AuthorsTooke, C.L. / Hinchliffe, P. / Spencer, J.
Funding support United Kingdom, 2items
OrganizationGrant numberCountry
Medical Research Council (MRC, United Kingdom)MR/T016035/1 United Kingdom
Biotechnology and Biological Sciences Research Council (BBSRC)BB/J014400/1 United Kingdom
Citation
Journal: J.Am.Chem.Soc. / Year: 2023
Title: Tautomer-Specific Deacylation and Omega-Loop Flexibility Explain the Carbapenem-Hydrolyzing Broad-Spectrum Activity of the KPC-2 beta-Lactamase.
Authors: Tooke, C.L. / Hinchliffe, P. / Beer, M. / Zinovjev, K. / Colenso, C.K. / Schofield, C.J. / Mulholland, A.J. / Spencer, J.
#1: Journal: Acta Crystallogr.,Sect.D / Year: 2012
Title: Towards automated crystallographic structure refinement with phenix.refine.
Authors: Afonine, P.V. / Grosse-Kunstleve, R.W. / Echols, N. / Headd, J.J. / Moriarty, N.W. / Mustyakimov, M. / Terwilliger, T.C. / Urzhumtsev, A. / Zwart, P.H. / Adams, P.D.
#2: Journal: Acta Crystallogr D Struct Biol / Year: 2019
Title: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix.
Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty ...Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams /
Abstract: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks.
History
DepositionJul 29, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 8, 2023Provider: repository / Type: Initial release
Revision 2.0Mar 22, 2023Group: Atomic model / Author supporting evidence ...Atomic model / Author supporting evidence / Data collection / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / atom_site_anisotrop ...atom_site / atom_site_anisotrop / chem_comp / entity / pdbx_entity_instance_feature / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / struct_conn
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _atom_site.type_symbol / _atom_site_anisotrop.U[1][1] / _atom_site_anisotrop.U[1][2] / _atom_site_anisotrop.U[1][3] / _atom_site_anisotrop.U[2][2] / _atom_site_anisotrop.U[2][3] / _atom_site_anisotrop.U[3][3] / _atom_site_anisotrop.pdbx_auth_atom_id / _atom_site_anisotrop.pdbx_auth_comp_id / _atom_site_anisotrop.pdbx_label_atom_id / _atom_site_anisotrop.pdbx_label_comp_id / _atom_site_anisotrop.type_symbol / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.pdbx_synonyms / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _pdbx_entity_instance_feature.auth_comp_id / _pdbx_entity_instance_feature.comp_id / _pdbx_entity_nonpoly.comp_id / _pdbx_entity_nonpoly.name / _pdbx_nonpoly_scheme.mon_id / _pdbx_nonpoly_scheme.pdb_mon_id / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_label_comp_id
Revision 2.1Aug 30, 2023Group: Data collection / Database references
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / 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.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 2.2Feb 7, 2024Group: Refinement description / Category: pdbx_initial_refinement_model
Revision 2.3Oct 9, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature / Item: _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Carbapenem-hydrolyzing beta-lactamase KPC
hetero molecules


Theoretical massNumber of molelcules
Total (without water)31,8978
Polymers30,8061
Non-polymers1,0917
Water4,666259
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area830 Å2
ΔGint-21 kcal/mol
Surface area11160 Å2
MethodPISA
Unit cell
Length a, b, c (Å)60.662, 79.482, 55.945
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number18
Space group name H-MP21212

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Carbapenem-hydrolyzing beta-lactamase KPC / Carbapenem-hydrolyzing beta-lactamase KPC-1


Mass: 30805.646 Da / Num. of mol.: 1 / Mutation: E166Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Klebsiella pneumoniae (bacteria) / Gene: bla, kpc, kpc1 / Production host: Escherichia coli (E. coli) / References: UniProt: Q9F663, beta-lactamase

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Non-polymers , 5 types, 266 molecules

#2: Chemical ChemComp-ID1 / Imipenem


Mass: 301.362 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H19N3O4S / Feature type: SUBJECT OF INVESTIGATION / Comment: antibiotic*YM
#3: Chemical ChemComp-HIW / (2R,4S)-2-[(1S,2R)-1-carboxy-2-hydroxypropyl]-4-[(2-{[(Z)-iminomethyl]amino}ethyl)sulfanyl]-3,4-dihydro-2H-pyrrole-5-ca rboxylic acid / Hydrolyzed Imipenem


Mass: 317.361 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H19N3O5S / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: SO4
#5: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: isolated from a natural source / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 259 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestY
Has protein modificationY

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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: 2.37 Å3/Da / Density % sol: 48.04 %
Crystal growTemperature: 293.15 K / Method: vapor diffusion, sitting drop / Details: 2.0 M Ammonium Sulphate, 5% v/v ethanol

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: ALBA / Beamline: XALOC / Wavelength: 0.89996 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: May 1, 2019
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.89996 Å / Relative weight: 1
ReflectionResolution: 1.36→48.22 Å / Num. obs: 58883 / % possible obs: 100 % / Redundancy: 13.1 % / Biso Wilson estimate: 14.94 Å2 / CC1/2: 0.999 / Rpim(I) all: 0.038 / Net I/σ(I): 10.5
Reflection shellResolution: 1.36→1.38 Å / Mean I/σ(I) obs: 0.9 / Num. unique obs: 2867 / CC1/2: 0.519 / Rpim(I) all: 0.987

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Processing

Software
NameVersionClassification
PHENIX1.18.2_3874refinement
PDB_EXTRACT3.27data extraction
XDSdata reduction
Aimlessdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 6Z21

6z21


Resolution: 1.36→48.22 Å / SU ML: 0.19 / Cross valid method: THROUGHOUT / σ(F): 1.33 / Phase error: 19.78 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.1797 3013 5.12 %
Rwork0.1542 55778 -
obs0.1555 58791 99.93 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 103.14 Å2 / Biso mean: 23.4397 Å2 / Biso min: 9.31 Å2
Refinement stepCycle: final / Resolution: 1.36→48.22 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1999 0 117 259 2375
Biso mean--35 34.38 -
Num. residues----267
LS refinement shell

Refine-ID: X-RAY DIFFRACTION / Rfactor Rfree error: 0 / Total num. of bins used: 22 / % reflection obs: 100 %

Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkNum. reflection all
1.36-1.380.3821440.423224922636
1.38-1.40.39121430.369225092652
1.4-1.430.34641440.313624922636
1.43-1.450.3181540.267924792633
1.45-1.480.24931280.228824972625
1.48-1.510.24921470.198825002647
1.51-1.550.21121360.193324902626
1.55-1.580.21461350.176525012636
1.58-1.620.22151550.168724992654
1.62-1.660.20151340.180424972631
1.66-1.710.191370.143625222659
1.71-1.770.18831280.134225432671
1.77-1.830.17561310.128325192650
1.83-1.910.1519960.131625842680
1.91-1.990.16881430.129425152658
1.99-2.10.18661460.130525082654
2.1-2.230.16741260.12725672693
2.23-2.40.16321450.127125422687
2.4-2.640.14931290.127225782707
2.64-3.020.14161340.139125842718
3.02-3.810.15211470.141326102757
3.81-48.220.16161310.157527502881

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