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- PDB-6gxq: Crystal structure of T. brucei PDE-B1 catalytic domain with inhib... -

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Basic information

Entry
Database: PDB / ID: 6gxq
TitleCrystal structure of T. brucei PDE-B1 catalytic domain with inhibitor NPD-1335
ComponentsPhosphodiesterase
KeywordsHYDROLASE / Parasitic phosphodiesterase / African trypanosomiasis / sleeping sickness
Function / homology
Function and homology information


Hydrolases; Acting on ester bonds; Phosphoric-diester hydrolases / axoneme / 3',5'-cyclic-nucleotide phosphodiesterase activity / 3',5'-cyclic-AMP phosphodiesterase activity / cell morphogenesis / signal transduction / metal ion binding / cytoplasm
Similarity search - Function
Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / GAF domain / 3'5'-cyclic nucleotide phosphodiesterase / Domain present in phytochromes and cGMP-specific phosphodiesterases. / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / 3'5'-cyclic nucleotide phosphodiesterase, conserved site / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase domain signature. ...Catalytic domain of cyclic nucleotide phosphodiesterase 4b2b / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / GAF domain / 3'5'-cyclic nucleotide phosphodiesterase / Domain present in phytochromes and cGMP-specific phosphodiesterases. / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain / 3'5'-cyclic nucleotide phosphodiesterase, conserved site / 3'5'-cyclic nucleotide phosphodiesterase, catalytic domain superfamily / 3'5'-cyclic nucleotide phosphodiesterase / 3'5'-cyclic nucleotide phosphodiesterase domain signature. / 3'5'-cyclic nucleotide phosphodiesterase domain profile. / GAF domain / GAF-like domain superfamily / Metal dependent phosphohydrolases with conserved 'HD' motif. / HD/PDEase domain / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Chem-FFZ / GUANIDINE / Phosphodiesterase
Similarity search - Component
Biological speciesTrypanosoma brucei (eukaryote)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.96 Å
AuthorsSingh, A.K. / Brown, D.G.
Funding support1items
OrganizationGrant numberCountry
European Union602666
CitationJournal: Bioorg.Med.Chem. / Year: 2019
Title: Alkynamide phthalazinones as a new class of TbrPDEB1 inhibitors (Part 2).
Authors: de Heuvel, E. / Singh, A.K. / Boronat, P. / Kooistra, A.J. / van der Meer, T. / Sadek, P. / Blaazer, A.R. / Shaner, N.C. / Bindels, D.S. / Caljon, G. / Maes, L. / Sterk, G.J. / Siderius, M. ...Authors: de Heuvel, E. / Singh, A.K. / Boronat, P. / Kooistra, A.J. / van der Meer, T. / Sadek, P. / Blaazer, A.R. / Shaner, N.C. / Bindels, D.S. / Caljon, G. / Maes, L. / Sterk, G.J. / Siderius, M. / Oberholzer, M. / de Esch, I.J.P. / Brown, D.G. / Leurs, R.
History
DepositionJun 27, 2018Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 10, 2019Provider: repository / Type: Initial release
Revision 1.1Jul 24, 2019Group: Data collection / Database references / Category: 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.pdbx_database_id_DOI / _citation.title / _citation.year
Revision 1.2Aug 14, 2019Group: Data collection / Database references / Category: citation / Item: _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.3Sep 4, 2019Group: Data collection / Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.4Jan 17, 2024Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_conn_angle / struct_conn / struct_ncs_dom_lim
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_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_ncs_dom_lim.beg_auth_comp_id / _struct_ncs_dom_lim.beg_label_asym_id / _struct_ncs_dom_lim.beg_label_comp_id / _struct_ncs_dom_lim.beg_label_seq_id / _struct_ncs_dom_lim.end_auth_comp_id / _struct_ncs_dom_lim.end_label_asym_id / _struct_ncs_dom_lim.end_label_comp_id / _struct_ncs_dom_lim.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Phosphodiesterase
B: Phosphodiesterase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)82,45315
Polymers81,2472
Non-polymers1,20713
Water7,800433
1
A: Phosphodiesterase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)41,4388
Polymers40,6231
Non-polymers8157
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Phosphodiesterase
hetero molecules


Theoretical massNumber of molelcules
Total (without water)41,0157
Polymers40,6231
Non-polymers3926
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)114.876, 114.424, 68.232
Angle α, β, γ (deg.)90.00, 108.36, 90.00
Int Tables number5
Space group name H-MC121
Components on special symmetry positions
IDModelComponents
11A-1181-

HOH

21A-1344-

HOH

Noncrystallographic symmetry (NCS)NCS domain:
IDEns-IDDetails
11A
21B

NCS domain segments:

Component-ID: 0 / Ens-ID: 1 / Beg auth comp-ID: VAL / Beg label comp-ID: VAL / End auth comp-ID: GLU / End label comp-ID: GLU / Refine code: 0 / Auth seq-ID: 586 - 916 / Label seq-ID: 28 - 358

Dom-IDAuth asym-IDLabel asym-ID
1AA
2BB

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein Phosphodiesterase /


Mass: 40623.340 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Details: residues 565-918 / Source: (gene. exp.) Trypanosoma brucei (eukaryote) / Gene: PDEB1 / Plasmid: pET28a / Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): codon plus
References: UniProt: Q8WQX9, Hydrolases; Acting on ester bonds; Phosphoric-diester hydrolases

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Non-polymers , 6 types, 446 molecules

#2: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg
#3: Chemical ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Zn
#4: Chemical
ChemComp-GAI / GUANIDINE / Guanidine


Mass: 59.070 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: CH5N3
#5: Chemical ChemComp-FFZ / 3-[5-[(4aR,8aS)-4-OXIDANYLIDENE-3-PROPAN-2-YL-4a,5,8,8a-TETRAHYDROPHTHALAZIN-1-YL]-2-METHOXY-PHENYL]-N-(PHENYLMETHYL)PROP-2-YNAMIDE


Mass: 455.548 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C28H29N3O3 / Feature type: SUBJECT OF INVESTIGATION
#6: Chemical ChemComp-GOL / GLYCEROL / GLYCERIN / PROPANE-1,2,3-TRIOL / Glycerol


Mass: 92.094 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C3H8O3
#7: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 433 / 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: 2.63 Å3/Da / Density % sol: 53.21 %
Crystal growTemperature: 277 K / Method: vapor diffusion, hanging drop / pH: 6.5
Details: 20% PEG 3350, 0.4 M sodium formate, 0.3 M guanidine, 0.1 M MES pH 6.5

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Diamond / Beamline: I04-1 / Wavelength: 0.91587 Å
DetectorType: DECTRIS PILATUS 6M-F / Detector: PIXEL / Date: Feb 16, 2018
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.91587 Å / Relative weight: 1
ReflectionResolution: 1.96→64.76 Å / Num. obs: 59811 / % possible obs: 99.8 % / Redundancy: 3.3 % / CC1/2: 0.992 / Rmerge(I) obs: 0.098 / Rpim(I) all: 0.063 / Rrim(I) all: 0.117 / Net I/σ(I): 6
Reflection shellResolution: 1.96→2.01 Å / Redundancy: 3.3 % / Rmerge(I) obs: 0.704 / Mean I/σ(I) obs: 1.3 / Num. unique obs: 4410 / CC1/2: 0.595 / Rpim(I) all: 0.45 / Rrim(I) all: 0.838 / % possible all: 99.9

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Processing

Software
NameVersionClassification
REFMAC5.8.0222refinement
DIALSdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4I15

4i15


Resolution: 1.96→57.28 Å / Cor.coef. Fo:Fc: 0.965 / Cor.coef. Fo:Fc free: 0.944 / SU B: 7.204 / SU ML: 0.177 / Cross valid method: THROUGHOUT / ESU R: 0.17 / ESU R Free: 0.158 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.24379 2895 5 %RANDOM
Rwork0.19988 ---
obs0.2021 55439 97.02 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 40.075 Å2
Baniso -1Baniso -2Baniso -3
1-4.41 Å20 Å2-0.51 Å2
2---2.12 Å20 Å2
3----1.6 Å2
Refinement stepCycle: 1 / Resolution: 1.96→57.28 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms5260 0 76 433 5769
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0080.0145429
X-RAY DIFFRACTIONr_bond_other_d0.0010.0174907
X-RAY DIFFRACTIONr_angle_refined_deg1.2471.6517337
X-RAY DIFFRACTIONr_angle_other_deg0.9621.64211443
X-RAY DIFFRACTIONr_dihedral_angle_1_deg5.8585663
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.90722.339295
X-RAY DIFFRACTIONr_dihedral_angle_3_deg15.0515933
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.9041535
X-RAY DIFFRACTIONr_chiral_restr0.070.2704
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.026133
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021072
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_it2.7953.9032658
X-RAY DIFFRACTIONr_mcbond_other2.7913.9012657
X-RAY DIFFRACTIONr_mcangle_it4.1355.8453319
X-RAY DIFFRACTIONr_mcangle_other4.1355.8473320
X-RAY DIFFRACTIONr_scbond_it3.3334.2572771
X-RAY DIFFRACTIONr_scbond_other3.3334.2572771
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other5.1346.234019
X-RAY DIFFRACTIONr_long_range_B_refined6.76847.6236623
X-RAY DIFFRACTIONr_long_range_B_other6.76747.6216623
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
Refine LS restraints NCS

Ens-ID: 1 / Number: 11266 / Refine-ID: X-RAY DIFFRACTION / Type: interatomic distance / Rms dev position: 0.08 Å / Weight position: 0.05

Dom-IDAuth asym-ID
1A
2B
LS refinement shellResolution: 1.958→2.009 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.407 188 -
Rwork0.395 3834 -
obs--90.93 %

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