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- PDB-1gk9: Crystal structures of penicillin acylase enzyme-substrate complex... -

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Basic information

Entry
Database: PDB / ID: 1gk9
TitleCrystal structures of penicillin acylase enzyme-substrate complexes: Structural insights into the catalytic mechanism
Components
  • PENICILLIN G ACYLASE ALPHA SUBUNIT
  • PENICILLIN G ACYLASE BETA SUBUNIT
KeywordsANTIBIOTIC RESISTANCE / AMIDASE / NTN-HYDROLASE
Function / homology
Function and homology information


penicillin amidase activity / penicillin amidase / antibiotic biosynthetic process / periplasmic space / response to antibiotic / metal ion binding
Similarity search - Function
Helix Hairpins - #150 / Penicillin G acylase, C-terminal / Penicillin Amidohydrolase, domain 1 / Penicillin Amidohydrolase; domain 1 / Penicillin amidase (Acylase) alpha subunit, N-terminal domain / Aminohydrolase, alpha-helical knob region / Penicillin/GL-7-ACA/AHL acylase / Penicillin G acylase, beta-roll domain / Aminohydrolase, N-terminal nucleophile (Ntn) domain, beta-sheet knob region / Penicillin/GL-7-ACA/AHL/aculeacin-A acylase ...Helix Hairpins - #150 / Penicillin G acylase, C-terminal / Penicillin Amidohydrolase, domain 1 / Penicillin Amidohydrolase; domain 1 / Penicillin amidase (Acylase) alpha subunit, N-terminal domain / Aminohydrolase, alpha-helical knob region / Penicillin/GL-7-ACA/AHL acylase / Penicillin G acylase, beta-roll domain / Aminohydrolase, N-terminal nucleophile (Ntn) domain, beta-sheet knob region / Penicillin/GL-7-ACA/AHL/aculeacin-A acylase / Penicillin amidase type, domain 1 / Penicillin amidase type, N-terminal domain, B-knob / Penicillin amidase type, A-knob / Penicillin amidase / Aminohydrolase, N-terminal nucleophile (Ntn) domain / Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1 / Nucleophile aminohydrolases, N-terminal / 4-Layer Sandwich / Helix Hairpins / Roll / Orthogonal Bundle / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
Penicillin G acylase
Similarity search - Component
Biological speciesESCHERICHIA COLI (E. coli)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.3 Å
AuthorsMcVey, C.E. / Walsh, M.A. / Dodson, G.G. / Wilson, K.S. / Brannigan, J.A.
Citation
Journal: J.Mol.Biol. / Year: 2001
Title: Crystal Structures of Penicillin Acylase Enzyme-Substrate Complexes: Structural Insights Into the Catalytic Mechanism
Authors: Mcvey, C.E. / Walsh, M.A. / Dodson, G.G. / S, K. / Brannigan, J.A.
#1: Journal: Protein Eng. / Year: 1990
Title: Expression, Purification and Crystallisation of Penicillin G Acylase from Escherichia Coli Atcc 11105
Authors: Hunt, P.D. / Tolley, S.P. / Ward, R.J. / Hill, C.P. / Dodson, G.G.
History
DepositionAug 10, 2001Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jan 4, 2002Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Dec 13, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / diffrn_source / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _diffrn_source.pdbx_synchrotron_site / _pdbx_database_status.status_code_sf / _pdbx_struct_conn_angle.ptnr1_auth_asym_id / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_asym_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_asym_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_asym_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PENICILLIN G ACYLASE ALPHA SUBUNIT
B: PENICILLIN G ACYLASE BETA SUBUNIT
hetero molecules


Theoretical massNumber of molelcules
Total (without water)92,92327
Polymers91,3932
Non-polymers1,53025
Water16,628923
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPQS
Unit cell
Length a, b, c (Å)51.300, 131.600, 63.900
Angle α, β, γ (deg.)90.00, 105.90, 90.00
Int Tables number4
Space group name H-MP1211

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Components

#1: Protein PENICILLIN G ACYLASE ALPHA SUBUNIT / PENICILLIN AMIDOHYDROLASE / NTN / PENICILLIN G AMIDASE / PENICILLIN G AMIDOHYDROLASE


Mass: 28963.695 Da / Num. of mol.: 1 / Fragment: N-TERMINAL NUCLEOPHILE DOMAIN RESIDUES 29-286
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) ESCHERICHIA COLI (E. coli) / Cellular location: PERIPLASM / Gene: PAC / Plasmid: PACYC184PAC / Cellular location (production host): PERIPLASM / Gene (production host): PAC / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P06875, penicillin amidase
#2: Protein PENICILLIN G ACYLASE BETA SUBUNIT


Mass: 62429.496 Da / Num. of mol.: 1 / Fragment: RESIDUES 287-846
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) ESCHERICHIA COLI (E. coli) / Cellular location: PERIPLASM / Gene: PAC / Plasmid: PACYC184PAC / Cellular location (production host): PERIPLASM / Gene (production host): PAC / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P06875, penicillin amidase
#3: Chemical...
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 24 / Source method: obtained synthetically / Formula: C2H6O2
#4: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Ca
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 923 / Source method: isolated from a natural source / Formula: H2O

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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: 2.27 Å3/Da / Density % sol: 42.2 %
Crystal growpH: 7.5 / Details: pH 7.50
Crystal grow
*PLUS
Temperature: 291 K / pH: 7.2 / Method: vapor diffusion, hanging drop / Details: McVey, C.E., (1997) Acta Crystallog., D53, 777.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
110 mg/mlprotein1drop
250 mMMOPS1droppH7.2
350 mMMOPS1reservoirpH7.2
410-12 %PEG2000 MME1reservoir
520-25 %ethylene glycol1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: EMBL/DESY, HAMBURG / Beamline: BW7B / Wavelength: 0.89
DetectorType: MAR scanner 300 mm plate / Detector: IMAGE PLATE
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.89 Å / Relative weight: 1
ReflectionResolution: 1.3→20 Å / Num. obs: 190229 / % possible obs: 95.5 % / Redundancy: 3.6 % / Biso Wilson estimate: 11.8 Å2 / Rmerge(I) obs: 0.075 / Net I/σ(I): 20.5
Reflection shellResolution: 1.3→1.31 Å / Rmerge(I) obs: 0.244 / Mean I/σ(I) obs: 3.4 / % possible all: 82
Reflection
*PLUS
Num. measured all: 651295
Reflection shell
*PLUS
% possible obs: 97.1 %

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Processing

Software
NameClassification
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1PNK

1pnk


Resolution: 1.3→20 Å / SU B: 0.7 / SU ML: 0.03 / Cross valid method: THROUGHOUT / σ(F): 0 / ESU R: 0.044 / ESU R Free: 0.046
RfactorNum. reflection% reflectionSelection details
Rfree0.169 5653 3 %RANDOM
Rwork0.148 ---
obs-181046 95.5 %-
Displacement parametersBiso mean: 15.5 Å2
Refinement stepCycle: LAST / Resolution: 1.3→20 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms6086 0 97 923 7106
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONp_bond_d0.0180.02
X-RAY DIFFRACTIONp_angle_d0.0310.04
X-RAY DIFFRACTIONp_angle_deg
X-RAY DIFFRACTIONp_planar_d0.040.05
X-RAY DIFFRACTIONp_hb_or_metal_coord
X-RAY DIFFRACTIONp_mcbond_it1.5363
X-RAY DIFFRACTIONp_mcangle_it1.9825
X-RAY DIFFRACTIONp_scbond_it3.3887
X-RAY DIFFRACTIONp_scangle_it4.46710
X-RAY DIFFRACTIONp_plane_restr0.0260.03
X-RAY DIFFRACTIONp_chiral_restr0.1280.15
X-RAY DIFFRACTIONp_singtor_nbd
X-RAY DIFFRACTIONp_multtor_nbd
X-RAY DIFFRACTIONp_xhyhbond_nbd
X-RAY DIFFRACTIONp_xyhbond_nbd
X-RAY DIFFRACTIONp_planar_tor
X-RAY DIFFRACTIONp_staggered_tor
X-RAY DIFFRACTIONp_orthonormal_tor
X-RAY DIFFRACTIONp_transverse_tor
X-RAY DIFFRACTIONp_special_tor
Software
*PLUS
Name: REFMAC / Classification: refinement
Refinement
*PLUS
Lowest resolution: 20 Å / Rfactor obs: 0.148
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONp_bond_d0.014
X-RAY DIFFRACTIONp_angle_d0.027
X-RAY DIFFRACTIONp_plane_restr0.032

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