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Basic information

Entry
Database: PDB / ID: 3ao1
TitleFragment-based approach to the design of ligands targeting a novel site in HIV-1 integrase
ComponentsPOL polyprotein
KeywordsVIRAL PROTEIN/TRANSFERASE INHIBITOR / DNA INTEGRATION / AIDS / INTEGRASE / ENDONUCLEASE / POLYNUCLEOTIDYL TRANSFERASE / DNA BINDING / VIRAL PROTEIN / RNaseH / Fragment binding / VIRAL PROTEIN-TRANSFERASE INHIBITOR complex
Function / homology
Function and homology information


exoribonuclease H activity / DNA integration / viral genome integration into host DNA / establishment of integrated proviral latency / telomerase activity / RNA stem-loop binding / RNA-DNA hybrid ribonuclease activity / DNA recombination / aspartic-type endopeptidase activity / symbiont entry into host cell ...exoribonuclease H activity / DNA integration / viral genome integration into host DNA / establishment of integrated proviral latency / telomerase activity / RNA stem-loop binding / RNA-DNA hybrid ribonuclease activity / DNA recombination / aspartic-type endopeptidase activity / symbiont entry into host cell / proteolysis / DNA binding / zinc ion binding
Similarity search - Function
Ribonuclease H-like superfamily/Ribonuclease H / Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral ...Ribonuclease H-like superfamily/Ribonuclease H / Reverse transcriptase connection / Reverse transcriptase connection domain / Reverse transcriptase thumb / Reverse transcriptase thumb domain / Integrase Zinc binding domain / Zinc finger integrase-type profile. / Integrase-like, N-terminal / Integrase DNA binding domain / Integrase, C-terminal domain superfamily, retroviral / Integrase, N-terminal zinc-binding domain / Integrase, C-terminal, retroviral / Integrase DNA binding domain profile. / RNase H / Integrase core domain / Integrase, catalytic core / Integrase catalytic domain profile. / Retropepsin-like catalytic domain / RNase H type-1 domain profile. / Ribonuclease H domain / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Reverse transcriptase domain / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase (RT) catalytic domain profile. / Nucleotidyltransferase; domain 5 / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Aspartic peptidase domain superfamily / Ribonuclease H superfamily / Ribonuclease H-like superfamily / Reverse transcriptase/Diguanylate cyclase domain / DNA/RNA polymerase superfamily / 2-Layer Sandwich / Alpha Beta
Similarity search - Domain/homology
1,3-benzodioxol-5-ol / : / POL polyprotein
Similarity search - Component
Biological speciesHuman immunodeficiency virus 1
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.9 Å
AuthorsWielens, J. / Parker, M.W. / Chalmers, D.K. / Scanlon, M.J.
CitationJournal: Chemmedchem / Year: 2011
Title: Fragment-based design of ligands targeting a novel site on the integrase enzyme of human immunodeficiency virus 1
Authors: Wielens, J. / Headey, S.J. / Deadman, J.J. / Rhodes, D.I. / Parker, M.W. / Chalmers, D.K. / Scanlon, M.J.
History
DepositionSep 17, 2010Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 9, 2011Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Nov 1, 2023Group: 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_ref_seq_dif / struct_site
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_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.ptnr2_auth_asym_id / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_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_ref_seq_dif.details / _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: POL polyprotein
B: POL polyprotein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)36,56410
Polymers35,6042
Non-polymers9608
Water1,29772
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area2750 Å2
ΔGint-14 kcal/mol
Surface area12710 Å2
MethodPISA
Unit cell
Length a, b, c (Å)60.587, 61.997, 81.765
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein POL polyprotein


Mass: 17802.174 Da / Num. of mol.: 2 / Fragment: Integrase CATALYTIC CORE DOMAIN, 765-927 / Mutation: C56S, W131D, F139D, F185H
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Human immunodeficiency virus 1 / Strain: NL43 / Gene: pol / Plasmid: PeT23b+ / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 (de3) / References: UniProt: Q72498
#2: Chemical
ChemComp-CD / CADMIUM ION


Mass: 112.411 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Cd
#3: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: SO4
#4: Chemical ChemComp-BZX / 1,3-benzodioxol-5-ol


Mass: 138.121 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: C7H6O3 / Comment: antiinflammatory, antidepressant*YM
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 72 / 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: 2.16 Å3/Da / Density % sol: 42.96 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.6
Details: 1.6M AmSO4, 0.1M Na Citrate pH 5.6, 5mM CdCl2, VAPOR DIFFUSION, HANGING DROP, temperature 293K

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 23-ID-B / Wavelength: 0.97937 Å
DetectorType: MAR scanner 300 mm plate / Detector: IMAGE PLATE / Date: Aug 27, 2007
Details: double crystal monochromator and K-B pair of biomorph mirrors
RadiationMonochromator: double crystal monochromator / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97937 Å / Relative weight: 1
ReflectionResolution: 1.9→62 Å / Num. all: 24972 / Num. obs: 24930 / % possible obs: 99.9 % / Redundancy: 7 % / Rmerge(I) obs: 0.086 / Rsym value: 0.093 / Net I/σ(I): 11
Reflection shellResolution: 1.9→2 Å / Redundancy: 7 % / Rmerge(I) obs: 0.48 / Mean I/σ(I) obs: 3.2 / Rsym value: 0.52 / % possible all: 100

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Processing

Software
NameVersionClassification
Blu-Icedata collection
AMoREphasing
REFMAC5.2.0019refinement
MOSFLMdata reduction
SCALAdata scaling
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3L3U

3l3u


Resolution: 1.9→49.4 Å / Cor.coef. Fo:Fc: 0.951 / Cor.coef. Fo:Fc free: 0.924 / Cross valid method: THROUGHOUT / ESU R: 0.165 / ESU R Free: 0.161 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.2676 1234 5 %RANDOM
Rwork0.21635 ---
obs0.21876 23602 99.67 %-
all-24930 --
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.4 Å / Solvent model: MASK
Displacement parametersBiso mean: 38.818 Å2
Baniso -1Baniso -2Baniso -3
1--0.33 Å20 Å20 Å2
2--2.64 Å20 Å2
3----2.31 Å2
Refinement stepCycle: LAST / Resolution: 1.9→49.4 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2159 0 39 72 2270
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0222235
X-RAY DIFFRACTIONr_bond_other_d
X-RAY DIFFRACTIONr_angle_refined_deg1.3741.9523024
X-RAY DIFFRACTIONr_angle_other_deg
X-RAY DIFFRACTIONr_dihedral_angle_1_deg4.8635279
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.01524.83189
X-RAY DIFFRACTIONr_dihedral_angle_3_deg14.59715382
X-RAY DIFFRACTIONr_dihedral_angle_4_deg12.575158
X-RAY DIFFRACTIONr_chiral_restr0.0710.2343
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0211637
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02421
X-RAY DIFFRACTIONr_nbd_refined0.2040.2462
X-RAY DIFFRACTIONr_nbd_other0.1860.21457
X-RAY DIFFRACTIONr_nbtor_refined0.1750.21071
X-RAY DIFFRACTIONr_nbtor_other0.0830.21107
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1810.2116
X-RAY DIFFRACTIONr_xyhbond_nbd_other0.0040.21
X-RAY DIFFRACTIONr_metal_ion_refined0.2540.25
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.1140.215
X-RAY DIFFRACTIONr_symmetry_vdw_other0.2490.246
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.3860.27
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it2.1521.51390
X-RAY DIFFRACTIONr_mcbond_other0.1841.5585
X-RAY DIFFRACTIONr_mcangle_it3.11922232
X-RAY DIFFRACTIONr_scbond_it3.053845
X-RAY DIFFRACTIONr_scangle_it4.3254.5792
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 1.9→1.949 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.398 101 -
Rwork0.344 1706 -
obs--99.83 %

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