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- PDB-1p0m: Crystal structure of human butyryl cholinesterase in complex with... -

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Basic information

Entry
Database: PDB / ID: 1p0m
TitleCrystal structure of human butyryl cholinesterase in complex with a choline molecule
ComponentsCholinesterase
KeywordsHYDROLASE / serine hydrolase / choline
Function / homology
Function and homology information


cholinesterase / cocaine metabolic process / neuroblast differentiation / choline binding / Neurotransmitter clearance / cholinesterase activity / choline metabolic process / negative regulation of synaptic transmission / response to folic acid / acetylcholine catabolic process ...cholinesterase / cocaine metabolic process / neuroblast differentiation / choline binding / Neurotransmitter clearance / cholinesterase activity / choline metabolic process / negative regulation of synaptic transmission / response to folic acid / acetylcholine catabolic process / response to alkaloid / hydrolase activity, acting on ester bonds / peptide hormone processing / acetylcholinesterase activity / nuclear envelope lumen / Synthesis of PC / Aspirin ADME / catalytic activity / Synthesis, secretion, and deacylation of Ghrelin / response to glucocorticoid / xenobiotic metabolic process / learning / amyloid-beta binding / blood microparticle / endoplasmic reticulum lumen / negative regulation of cell population proliferation / enzyme binding / extracellular space / extracellular region / identical protein binding / plasma membrane
Similarity search - Function
Acetylcholinesterase, tetramerisation domain / Acetylcholinesterase tetramerisation domain / : / Cholinesterase / Carboxylesterase type B, active site / Carboxylesterases type-B serine active site. / Carboxylesterase type B, conserved site / Carboxylesterases type-B signature 2. / Carboxylesterase, type B / Carboxylesterase family ...Acetylcholinesterase, tetramerisation domain / Acetylcholinesterase tetramerisation domain / : / Cholinesterase / Carboxylesterase type B, active site / Carboxylesterases type-B serine active site. / Carboxylesterase type B, conserved site / Carboxylesterases type-B signature 2. / Carboxylesterase, type B / Carboxylesterase family / Alpha/Beta hydrolase fold, catalytic domain / Alpha/Beta hydrolase fold / Rossmann fold / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
CHOLINE ION / Cholinesterase
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.38 Å
AuthorsNicolet, Y. / Lockridge, O. / Masson, P. / Fontecilla-Camps, J.C. / Nachon, F.
Citation
Journal: J.Biol.Chem. / Year: 2003
Title: Crystal structure of human butyrylcholinesterase and of its complexes with substrate and products.
Authors: Nicolet, Y. / Lockridge, O. / Masson, P. / Fontecilla-Camps, J.C. / Nachon, F.
#1: Journal: Eur.J.Biochem. / Year: 2002
Title: Engineering of a monomeric and low-glycosylated form of human butyrylcholinesterase: expression, purification, characterization and crystallization
Authors: Nachon, F. / Nicolet, Y. / Viguie, N. / Masson, P. / Fontecilla-Camps, J.C. / Lockridge, O.
History
DepositionApr 10, 2003Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 5, 2003Provider: repository / Type: Initial release
Revision 1.1Apr 29, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 1.3Oct 11, 2017Group: Advisory / Refinement description / Category: pdbx_unobs_or_zero_occ_atoms / software / Item: _software.classification / _software.name
Revision 2.0Jul 29, 2020Group: Atomic model / Data collection ...Atomic model / Data collection / Derived calculations / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_nonpoly_scheme / pdbx_struct_assembly_gen / pdbx_struct_special_symmetry / struct_asym / struct_conn / struct_site / struct_site_gen
Item: _atom_site.auth_asym_id / _atom_site.auth_seq_id ..._atom_site.auth_asym_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_entity_id / _chem_comp.name / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.pdbx_number_of_molecules / _entity.src_method / _entity.type / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_special_symmetry.label_asym_id / _struct_conn.pdbx_leaving_atom_flag / _struct_conn.pdbx_role / _struct_conn.ptnr1_auth_asym_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr2_auth_asym_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 2.1Oct 27, 2021Group: Advisory / Database references / Structure summary
Category: chem_comp / database_2 ...chem_comp / database_2 / pdbx_unobs_or_zero_occ_atoms / struct_ref_seq_dif
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ..._chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_ref_seq_dif.details
Revision 2.2Aug 16, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 2.3Oct 30, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Cholinesterase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)62,16913
Polymers59,7141
Non-polymers2,45512
Water4,774265
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)154.657, 154.657, 128.570
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number97
Space group name H-MI422
Components on special symmetry positions
IDModelComponents
11A-701-

CL

21A-901-

HOH

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Components

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Protein , 1 types, 1 molecules A

#1: Protein Cholinesterase / Acylcholine acylhydrolase / Choline esterase II / Butyrylcholine esterase / Pseudocholinesterase


Mass: 59713.512 Da / Num. of mol.: 1 / Mutation: N17Q, N455Q, N481Q, N486Q
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: BCHE OR CHE1 / Cell line (production host): ovary cells / Production host: Cricetulus griseus (Chinese hamster) / References: UniProt: P06276, cholinesterase

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Sugars , 2 types, 5 molecules

#2: Polysaccharide 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta- ...2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-[alpha-L-fucopyranose-(1-6)]2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 570.542 Da / Num. of mol.: 2 / Source method: obtained synthetically
DescriptorTypeProgram
DGlcpNAcb1-4[LFucpa1-6]DGlcpNAcb1-Glycam Condensed SequenceGMML 1.0
WURCS=2.0/2,3,2/[a2122h-1b_1-5_2*NCC/3=O][a1221m-1a_1-5]/1-1-2/a4-b1_a6-c1WURCSPDB2Glycan 1.1.0
[]{[(4+1)][b-D-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}[(6+1)][a-L-Fucp]{}}}LINUCSPDB-CARE
#3: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Non-polymers , 6 types, 272 molecules

#4: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#5: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Cl
#6: Chemical ChemComp-MES / 2-(N-MORPHOLINO)-ETHANESULFONIC ACID


Mass: 195.237 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H13NO4S / Comment: pH buffer*YM
#7: Chemical ChemComp-CHT / CHOLINE ION


Mass: 104.171 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C5H14NO
#8: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL


Mass: 92.094 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C3H8O3
#9: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 265 / Source method: isolated from a natural source / Formula: H2O

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Details

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: 2.97 Å3/Da / Density % sol: 58.22 %
Crystal growTemperature: 298 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: Ammonium sulfate, 2-(N-Morpholino)-ethanesulfonic acid, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
Crystal grow
*PLUS
Temperature: 20 ℃ / Method: vapor diffusion, hanging drop / Details: Nachon, F., (2002) Eur.J.Biochem., 269, 630.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetails
16.6 mg/mlprotein1drop
20.1 MMES1droppH6.5
32.05-2.15 Mammonium sulfate1reservoir

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: BM30A / Wavelength: 0.9798 Å
DetectorType: MARRESEARCH / Detector: CCD / Date: Feb 24, 2002
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9798 Å / Relative weight: 1
ReflectionResolution: 2.32→49.43 Å / Num. all: 30739 / Num. obs: 29378 / % possible obs: 87.4 % / Observed criterion σ(F): 0 / Observed criterion σ(I): 1 / Redundancy: 9.9 % / Biso Wilson estimate: 42.7 Å2 / Rsym value: 0.06 / Net I/σ(I): 23.67
Reflection shellResolution: 2.32→2.47 Å / Redundancy: 6.7 % / Mean I/σ(I) obs: 4.26 / Num. unique all: 4547 / Rsym value: 0.38 / % possible all: 77.7
Reflection
*PLUS
Rmerge(I) obs: 0.061
Reflection shell
*PLUS
% possible obs: 77.7 % / Rmerge(I) obs: 0.398 / Mean I/σ(I) obs: 4.3

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Processing

Software
NameVersionClassification
CNS0.9refinement
MAR345data collection
XDSdata scaling
CNSphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1P0I

1p0i


Resolution: 2.38→49.43 Å / Rfactor Rfree error: 0.006 / Isotropic thermal model: RESTRAINED / Cross valid method: THROUGHOUT / σ(F): 0 / Stereochemistry target values: Engh & Huber
Details: DURING REFINEMENT, THE CATALYTIC S198 WAS MODELLED AS A RESIDUE WITH 2 CONFORMATIONS FOR ITS SIDE CHAIN. ONE OF THESE CORRESPOND TO THE LOCATION OF THE OG IN THE OXANION HOLE. THE ...Details: DURING REFINEMENT, THE CATALYTIC S198 WAS MODELLED AS A RESIDUE WITH 2 CONFORMATIONS FOR ITS SIDE CHAIN. ONE OF THESE CORRESPOND TO THE LOCATION OF THE OG IN THE OXANION HOLE. THE ALTERNATIVE ONE INDCATES THE PRESENCE OF A WATER MOLECULE. DUE TO CONSTRAINTS IN CNS ABOUT MULTIPLE CONFORMATIONS DEFINITION, THE OTHER POSITION FOR THE WATER MOLECULE 205 HAS BEEN ASSIGNED TO A WATER MOLECULE WITH A LOW OCCUPANCY LOCATED IN THE ACYL POCKET
RfactorNum. reflection% reflectionSelection details
Rfree0.244 1462 5 %RANDOM
Rwork0.215 ---
obs0.215 29230 92.9 %-
all-29230 --
Solvent computationSolvent model: FLAT MODEL / Bsol: 100.119 Å2 / ksol: 0.372379 e/Å3
Displacement parametersBiso mean: 49.2 Å2
Baniso -1Baniso -2Baniso -3
1--9.07 Å20 Å20 Å2
2---9.07 Å20 Å2
3---18.15 Å2
Refine analyze
FreeObs
Luzzati coordinate error0.34 Å0.28 Å
Luzzati d res low-5 Å
Luzzati sigma a0.35 Å0.32 Å
Refinement stepCycle: LAST / Resolution: 2.38→49.43 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4166 0 156 265 4587
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_bond_d0.008
X-RAY DIFFRACTIONc_angle_deg1.4
X-RAY DIFFRACTIONc_dihedral_angle_d23.4
X-RAY DIFFRACTIONc_improper_angle_d0.88
X-RAY DIFFRACTIONc_mcbond_it2.621.5
X-RAY DIFFRACTIONc_mcangle_it3.732
X-RAY DIFFRACTIONc_scbond_it4.082
X-RAY DIFFRACTIONc_scangle_it5.282.5
LS refinement shellResolution: 2.38→2.53 Å / Rfactor Rfree error: 0.021 / Total num. of bins used: 6
RfactorNum. reflection% reflection
Rfree0.323 244 5 %
Rwork0.278 4634 -
obs-4634 94.4 %
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PROTEIN_REP.PARAMPROTEIN.TOP
X-RAY DIFFRACTION2CARBOHYDRATE.PARAMCARBOHYDRATE.TOP
X-RAY DIFFRACTION3WATER.PARAMION.TOP
X-RAY DIFFRACTION4ION.PARAMWATER.TOP
X-RAY DIFFRACTION5LIGAND.PARAMLIGAND.TOP
Refinement
*PLUS
Highest resolution: 2.32 Å
Solvent computation
*PLUS
Displacement parameters
*PLUS
Refine LS restraints
*PLUS
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_deg23.4
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_deg0.88

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