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- PDB-4c0c: Crystal structure of Trypanosoma cruzi CYP51 bound to the inhibit... -

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Basic information

Entry
Database: PDB / ID: 4c0c
TitleCrystal structure of Trypanosoma cruzi CYP51 bound to the inhibitor (R)-N-(3-(1H-indol-3-yl)-1-oxo-1-(pyridin-4-ylamino)propan-2-yl)-4-(4-(2,4-difluorophenyl)piperazin-1-yl)-2-fluorobenzamide.
ComponentsSTEROL 14-ALPHA DEMETHYLASE
KeywordsOXIDOREDUCTASE / STEROL BIOSYNTHESIS / CHAGAS DISEASE
Function / homology
Function and homology information


sterol 14alpha-demethylase / sterol 14-demethylase activity / sterol biosynthetic process / iron ion binding / heme binding / membrane
Similarity search - Function
: / Cytochrome P450, E-class, group IV / Cytochrome p450 / Cytochrome P450 / Cytochrome P450, conserved site / Cytochrome P450 cysteine heme-iron ligand signature. / Cytochrome P450 / Cytochrome P450 superfamily / Cytochrome P450 / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Chem-WVH / Sterol 14-alpha demethylase / Sterol 14-alpha demethylase
Similarity search - Component
Biological speciesTRYPANOSOMA CRUZI (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.04 Å
AuthorsCalvet, C.M. / Vieira, D.F. / Choi, J.Y. / Cameron, M.D. / Gut, J. / Kellar, D. / Siqueira-Neto, J.L. / McKerrow, J.H. / Roush, W.R. / Podust, L.M.
CitationJournal: J.Med.Chem. / Year: 2014
Title: 4-Aminopyridyl-Based Cyp51 Inhibitors as Anti-Trypanosoma Cruzi Drug Leads with Improved Pharmacokinetic Profile and in Vivo Potency.
Authors: Calvet, C.M. / Vieira, D.F. / Choi, J.Y. / Kellar, D. / Cameron, M.D. / Siqueira-Neto, J.L. / Gut, J. / Johnston, J.B. / Lin, L. / Khan, S. / Mckerrow, J.H. / Roush, W.R. / Podust, L.M.
History
DepositionAug 1, 2013Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 20, 2014Provider: repository / Type: Initial release
Revision 1.1Sep 10, 2014Group: Database references
Revision 1.2Dec 20, 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 / pdbx_database_status / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / 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 / _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_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_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_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 / _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

Downloads & links

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Assembly

Deposited unit
A: STEROL 14-ALPHA DEMETHYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)55,93518
Polymers53,2871
Non-polymers2,64817
Water2,252125
1
A: STEROL 14-ALPHA DEMETHYLASE
hetero molecules

A: STEROL 14-ALPHA DEMETHYLASE
hetero molecules

A: STEROL 14-ALPHA DEMETHYLASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)167,80554
Polymers159,8603
Non-polymers7,94451
Water543
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation3_565-x+y,-x+1,z1
crystal symmetry operation2_665-y+1,x-y+1,z1
Buried area18170 Å2
ΔGint-547.6 kcal/mol
Surface area51210 Å2
MethodPISA
Unit cell
Length a, b, c (Å)128.528, 128.528, 116.721
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number182
Space group name H-MP6322
Components on special symmetry positions
IDModelComponents
11A-1482-

SO4

21A-1488-

SO4

31A-2007-

HOH

41A-2104-

HOH

51A-2124-

HOH

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Components

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Protein , 1 types, 1 molecules A

#1: Protein STEROL 14-ALPHA DEMETHYLASE / TC14DM / CYTOCHROME P450 51 / LANOSTEROL 14-ALPHA DEMETHYLASE / CYP51


Mass: 53286.820 Da / Num. of mol.: 1 / Fragment: RESIDUES 32-481
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) TRYPANOSOMA CRUZI (eukaryote) / Plasmid: PCW / Production host: ESCHERICHIA COLI K-12 (bacteria) / Strain (production host): HMS174(DE3)
References: UniProt: Q5I4E1, UniProt: Q7Z1V1*PLUS, sterol 14alpha-demethylase

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Non-polymers , 5 types, 142 molecules

#2: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
#3: Chemical ChemComp-WVH / 4-[4-[2,4-bis(fluoranyl)phenyl]piperazin-1-yl]-2-fluoranyl-N-[(2R)-3-(1H-indol-3-yl)-1-oxidanylidene-1-(pyridin-4-ylamino)propan-2-yl]benzamide


Mass: 598.618 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C33H29F3N6O2
#4: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 13 / 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: obtained synthetically / Formula: C3H8O3
#6: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 125 / Source method: isolated from a natural source / Formula: H2O

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Details

Nonpolymer detailsPROTOPORPHYRIN IX CONTAINING FE (HEM): THIOLATE BOND TO CYS 422
Sequence detailsFIRST 32 RESIDUES AT THE N-TERMINUS ARE REPLACED WITH THE MAKKTSSKGKL SEQUENCE, 6XHIS TAG ...FIRST 32 RESIDUES AT THE N-TERMINUS ARE REPLACED WITH THE MAKKTSSKGKL SEQUENCE, 6XHIS TAG ENGINEERED AT THE C- TERMINUS

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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: 2.58 Å3/Da / Density % sol: 52.3 % / Description: NONE
Crystal growpH: 5
Details: 0.4 M AMMONIUM SULFATE, 0.1 M BIS-TRIS PH 5.0, 19% PEG 3350

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Data collection

DiffractionMean temperature: 110 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 8.3.1 / Wavelength: 1.11587
DetectorType: MARRESERCH / Detector: CCD / Date: Jul 26, 2013 / Details: MIRRORS
RadiationMonochromator: SI (111) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.11587 Å / Relative weight: 1
ReflectionResolution: 2.04→116.72 Å / Num. obs: 36696 / % possible obs: 99.9 % / Observed criterion σ(I): 0.5 / Redundancy: 11 % / Biso Wilson estimate: 42.9 Å2 / Rmerge(I) obs: 0.09 / Net I/σ(I): 14.6
Reflection shellResolution: 2.04→2.15 Å / Redundancy: 7.1 % / Rmerge(I) obs: 1.24 / Mean I/σ(I) obs: 1.5 / % possible all: 99.2

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Processing

Software
NameVersionClassification
REFMAC5.7.0032refinement
MOSFLMdata reduction
SCALAdata scaling
MOLREPphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 2WX2
Resolution: 2.04→80.68 Å / Cor.coef. Fo:Fc: 0.961 / Cor.coef. Fo:Fc free: 0.938 / SU B: 4.764 / SU ML: 0.128 / Cross valid method: THROUGHOUT / ESU R: 0.183 / ESU R Free: 0.175 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.25365 1833 5 %RANDOM
Rwork0.19927 ---
obs0.20195 34827 99.8 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 43.54 Å2
Baniso -1Baniso -2Baniso -3
1--0.13 Å2-0.13 Å20 Å2
2---0.13 Å20 Å2
3---0.43 Å2
Refinement stepCycle: LAST / Resolution: 2.04→80.68 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3529 0 164 125 3818
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0180.0193786
X-RAY DIFFRACTIONr_bond_other_d0.0010.023575
X-RAY DIFFRACTIONr_angle_refined_deg1.9632.0165146
X-RAY DIFFRACTIONr_angle_other_deg0.95838217
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.4565446
X-RAY DIFFRACTIONr_dihedral_angle_2_deg37.61823.333162
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.75715635
X-RAY DIFFRACTIONr_dihedral_angle_4_deg22.3581528
X-RAY DIFFRACTIONr_chiral_restr0.1270.2558
X-RAY DIFFRACTIONr_gen_planes_refined0.0110.0214171
X-RAY DIFFRACTIONr_gen_planes_other0.0050.02867
X-RAY DIFFRACTIONr_nbd_refined
X-RAY DIFFRACTIONr_nbd_other
X-RAY DIFFRACTIONr_nbtor_refined
X-RAY DIFFRACTIONr_nbtor_other
X-RAY DIFFRACTIONr_xyhbond_nbd_refined
X-RAY DIFFRACTIONr_xyhbond_nbd_other
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined
X-RAY DIFFRACTIONr_symmetry_vdw_other
X-RAY DIFFRACTIONr_symmetry_hbond_refined
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it3.8254.0231787
X-RAY DIFFRACTIONr_mcbond_other3.8234.0191786
X-RAY DIFFRACTIONr_mcangle_it5.1496.0142233
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it4.9574.6221998
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other
X-RAY DIFFRACTIONr_long_range_B_refined
X-RAY DIFFRACTIONr_long_range_B_other
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.04→2.093 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.399 141 -
Rwork0.318 2476 -
obs--98.24 %

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