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- PDB-1h35: Structures of Human Oxidosqualene Cyclase Inhibitors Bound to an ... -

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Basic information

Entry
Database: PDB / ID: 1h35
TitleStructures of Human Oxidosqualene Cyclase Inhibitors Bound to an Homologous Enzyme
ComponentsSQUALENE--HOPENE CYCLASE
KeywordsISOMERASE / CHOLESTEROL BIOSYNTHESIS / INHIBITOR / MONOTOPIC MEMBRANE PROTEIN
Function / homology
Function and homology information


squalene-hopanol cyclase / squalene-hopene cyclase / squalene-hopene cyclase activity / triterpenoid biosynthetic process / lipid droplet / lyase activity / plasma membrane
Similarity search - Function
Squalene hopene cyclase / Terpene synthase, conserved site / Terpene synthases signature. / Squalene cyclase, N-terminal / Squalene-hopene cyclase N-terminal domain / Squalene cyclase / Squalene cyclase, C-terminal / Squalene-hopene cyclase C-terminal domain / Prenyltransferase alpha-alpha toroid domain / Glycosyltransferase - #20 ...Squalene hopene cyclase / Terpene synthase, conserved site / Terpene synthases signature. / Squalene cyclase, N-terminal / Squalene-hopene cyclase N-terminal domain / Squalene cyclase / Squalene cyclase, C-terminal / Squalene-hopene cyclase C-terminal domain / Prenyltransferase alpha-alpha toroid domain / Glycosyltransferase - #20 / Terpenoid cyclases/protein prenyltransferase alpha-alpha toroid / Glycosyltransferase / Alpha/alpha barrel / Mainly Alpha
Similarity search - Domain/homology
Chem-R01 / Squalene--hopene cyclase
Similarity search - Component
Biological speciesALICYCLOBACILLUS ACIDOCALDARIUS (bacteria)
MethodX-RAY DIFFRACTION / OTHER / Resolution: 2.8 Å
AuthorsLenhart, A. / Reinert, D.J. / Weihofen, W.A. / Aebi, J.D. / Dehmlow, H. / Morand, O.H. / Schulz, G.E.
Citation
Journal: J.Med.Chem. / Year: 2003
Title: Binding Structures and Potencies of Oxidosqualene Cyclase Inhibitors with the Homologous Squalene-Hopene Cyclase
Authors: Lenhart, A. / Reinert, D.J. / Aebi, J.D. / Dehmlow, H. / Morand, O.H. / Schulz, G.E.
#1: Journal: Chem.Biol. / Year: 2002
Title: Crystal Structure of a Squalene Cyclase in Complex with the Potential Anticholesteremic Drug Ro48-8071
Authors: Lenhart, A. / Weihofen, W.A. / Pleschke, A.E.W. / Schulz, G.E.
#2: Journal: J.Mol.Biol. / Year: 1999
Title: The Structure of the Membrane Protein Squalene-Hopene Cyclase at 2.0 A Resolution
Authors: Wendt, K.U. / Lenhart, A. / Schulz, G.E.
#3: Journal: Science / Year: 1997
Title: Structure and Function of a Squalene Cyclase
Authors: Wendt, K.U. / Poralla, K. / Schulz, G.E.
#4: Journal: J.Lipid Res. / Year: 1997
Title: Ro48-8071, a New 2,3-Oxidosqualene:Lanosterol Cyclase Inhibitor Lowering Plasma Cholesterol in Hamsters, Squirrel Monkeys, and Minipigs: Comparison to Simvastatin
Authors: Morand, O.H. / Aebi, J.D. / Dehmlow, H. / Ji, Y.H. / Gains, N. / Lengsfeld, H. / Himber, J.
History
DepositionAug 24, 2002Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 21, 2003Provider: repository / Type: Initial release
Revision 1.1Nov 20, 2013Group: Derived calculations / Non-polymer description ...Derived calculations / Non-polymer description / Other / Refinement description / Source and taxonomy / Structure summary / Version format compliance
Revision 1.2Jun 13, 2018Group: Data collection / Structure summary / Category: struct / Item: _struct.title
Revision 1.3May 8, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: SQUALENE--HOPENE CYCLASE
B: SQUALENE--HOPENE CYCLASE
C: SQUALENE--HOPENE CYCLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)217,1309
Polymers214,9503
Non-polymers2,1806
Water3,765209
1
A: SQUALENE--HOPENE CYCLASE
hetero molecules

B: SQUALENE--HOPENE CYCLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)144,7546
Polymers143,3002
Non-polymers1,4544
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_665-x+1,-x+y+1,-z+2/31
MethodPQS
2
B: SQUALENE--HOPENE CYCLASE
hetero molecules

A: SQUALENE--HOPENE CYCLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)144,7546
Polymers143,3002
Non-polymers1,4544
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_655-x+1,-x+y,-z+2/31
MethodPQS
3
C: SQUALENE--HOPENE CYCLASE
hetero molecules

C: SQUALENE--HOPENE CYCLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)144,7546
Polymers143,3002
Non-polymers1,4544
Water362
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation6_765-x+2,-x+y+1,-z+2/31
MethodPQS
Unit cell
Length a, b, c (Å)140.930, 140.930, 244.185
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number154
Space group name H-MP3221
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(-0.48389, -0.87512, -0.00494), (0.87513, -0.48389, -0.00079), (-0.0017, -0.0047, 0.99999)141.21747, -5.36334, 1.5564
2given(-0.52951, 0.8482, -0.01343), (-0.84823, -0.52961, -0.00529), (-0.0116, 0.0086, 0.9999)78.08424, 121.55144, 0.38552

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Components

#1: Protein SQUALENE--HOPENE CYCLASE / SHC


Mass: 71650.039 Da / Num. of mol.: 3
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) ALICYCLOBACILLUS ACIDOCALDARIUS (bacteria)
Description: THERMOSTABLE, ACIDOPHILIC / Plasmid: PKK223-3 / Production host: ESCHERICHIA COLI K-12 (bacteria) / Variant (production host): JM105 / References: UniProt: P33247, squalene-hopene cyclase
#2: Chemical ChemComp-C8E / (HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE


Mass: 306.438 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C16H34O5 / Comment: C8E, detergent*YM
#3: Chemical ChemComp-R01 / (4'-{[ALLYL(METHYL)AMINO]METHYL}-1,1'-BIPHENYL-4-YL)(4-BROMOPHENYL)METHANONE


Mass: 420.342 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C24H22BrNO
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 209 / Source method: isolated from a natural source / Formula: H2O
Compound detailsCATALYZES CYCLIZATION OF SQUALENE TO HOPENE. KEY ENZYME IN HOPANOID (TRITERPENOID) METABOLISM.

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION

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Sample preparation

CrystalDensity Matthews: 3.3 Å3/Da / Density % sol: 63 %
Crystal growpH: 4.8 / Details: pH 4.80
Crystal grow
*PLUS
Temperature: 20 ℃ / pH: 4.8 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDDetailsChemical formula
15-8 mg/mlprotein1drop
250 mMsodium citrate1reservoirpH4.8
350 mM1reservoirNaCl
43-9 %(v/v)PEG6001reservoir
50.3 %(w/v)1reservoirC8E4

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Data collection

DiffractionMean temperature: 298 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200B / Wavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR
RadiationMonochromator: GRAPHITE / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.8→38.63 Å / Num. obs: 56865 / % possible obs: 82.1 % / Redundancy: 3.8 % / Rmerge(I) obs: 0.089 / Net I/σ(I): 7
Reflection
*PLUS
Highest resolution: 2.8 Å / Lowest resolution: 40 Å / % possible obs: 82 % / Redundancy: 3.8 % / Num. measured all: 216866 / Rmerge(I) obs: 0.089

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Processing

Software
NameVersionClassification
CNS1.1refinement
XDSdata reduction
SCALAdata scaling
RefinementMethod to determine structure: OTHER / Resolution: 2.8→25 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.258 --RANDOM
Rwork0.219 ---
obs0.219 56775 81.5 %-
Refinement stepCycle: LAST / Resolution: 2.8→25 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms14892 0 144 209 15245
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONc_bond_d0.004
X-RAY DIFFRACTIONc_bond_d_na
X-RAY DIFFRACTIONc_bond_d_prot
X-RAY DIFFRACTIONc_angle_d
X-RAY DIFFRACTIONc_angle_d_na
X-RAY DIFFRACTIONc_angle_d_prot
X-RAY DIFFRACTIONc_angle_deg1
X-RAY DIFFRACTIONc_angle_deg_na
X-RAY DIFFRACTIONc_angle_deg_prot
X-RAY DIFFRACTIONc_dihedral_angle_d
X-RAY DIFFRACTIONc_dihedral_angle_d_na
X-RAY DIFFRACTIONc_dihedral_angle_d_prot
X-RAY DIFFRACTIONc_improper_angle_d
X-RAY DIFFRACTIONc_improper_angle_d_na
X-RAY DIFFRACTIONc_improper_angle_d_prot
X-RAY DIFFRACTIONc_mcbond_it
X-RAY DIFFRACTIONc_mcangle_it
X-RAY DIFFRACTIONc_scbond_it
X-RAY DIFFRACTIONc_scangle_it
Refine LS restraints NCSNCS model details: RESTRAINTS
Refinement
*PLUS
Lowest resolution: 40 Å
Solvent computation
*PLUS
Displacement parameters
*PLUS

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