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- PDB-4chz: Interrogating HIV integrase for compounds that bind- a SAMPL challenge -

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Basic information

Entry
Database: PDB / ID: 4chz
TitleInterrogating HIV integrase for compounds that bind- a SAMPL challenge
ComponentsINTEGRASE
KeywordsTRANSFERASE / STRUCTURE BASED DRUG DESIGN
Function / homology
Function and homology information


HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / RNA stem-loop binding ...HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / RNA stem-loop binding / viral penetration into host nucleus / host multivesicular body / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases / host cell / viral nucleocapsid / endonuclease activity / DNA recombination / DNA-directed DNA polymerase / aspartic-type endopeptidase activity / Hydrolases; Acting on ester bonds / DNA-directed DNA polymerase activity / symbiont-mediated suppression of host gene expression / viral translational frameshifting / lipid binding / symbiont entry into host cell / host cell nucleus / host cell plasma membrane / virion membrane / structural molecule activity / proteolysis / DNA binding / zinc ion binding / membrane
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. / Immunodeficiency lentiviral matrix, N-terminal / gag gene protein p17 (matrix protein) / RNase H / Integrase core domain / Integrase, catalytic core / Integrase catalytic domain profile. / Retropepsin-like catalytic domain / Matrix protein, lentiviral and alpha-retroviral, N-terminal / Retroviral nucleocapsid Gag protein p24, C-terminal domain / Gag protein p24 C-terminal domain / RNase H type-1 domain profile. / Ribonuclease H domain / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Retrovirus capsid, C-terminal / Reverse transcriptase domain / Reverse transcriptase (RNA-dependent DNA polymerase) / Reverse transcriptase (RT) catalytic domain profile. / Retroviral matrix protein / Retrovirus capsid, N-terminal / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Zinc finger, CCHC-type / Zinc finger CCHC-type 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
ACETATE ION / Chem-H75 / LYSINE / Gag-Pol polyprotein / Gag-Pol polyprotein
Similarity search - Component
Biological speciesHUMAN IMMUNODEFICIENCY VIRUS 1
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.8 Å
AuthorsPeat, T.S.
CitationJournal: J.Comput.Aided Mol.Des. / Year: 2014
Title: Interrogating HIV Integrase for Compounds that Bind- a Sampl Challenge.
Authors: Peat, T.S. / Dolezal, O. / Newman, J. / Mobley, D. / Deadman, J.J.
History
DepositionDec 5, 2013Deposition site: PDBE / Processing site: PDBE
Revision 1.0Dec 18, 2013Provider: repository / Type: Initial release
Revision 1.1Feb 26, 2014Group: Database references
Revision 1.2Jun 25, 2014Group: Database references
Revision 1.3Nov 2, 2022Group: Database references / Other / Category: citation / database_2 / pdbx_database_status
Item: _citation.country / _database_2.pdbx_DOI ..._citation.country / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_sf
Revision 1.4Jan 31, 2024Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: INTEGRASE
B: INTEGRASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)41,75922
Polymers40,0892
Non-polymers1,67020
Water2,846158
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area5950 Å2
ΔGint-108.2 kcal/mol
Surface area14380 Å2
MethodPISA
Unit cell
Length a, b, c (Å)71.160, 71.160, 66.790
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number144
Space group name H-MP31

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Components

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Protein , 1 types, 2 molecules AB

#1: Protein INTEGRASE


Mass: 20044.672 Da / Num. of mol.: 2 / Fragment: CATALYTIC DOMAIN, RESIDUES 50-212 / Mutation: YES
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HUMAN IMMUNODEFICIENCY VIRUS 1 / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21
References: UniProt: Q76353, UniProt: P12497*PLUS, DNA-directed DNA polymerase

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Non-polymers , 7 types, 178 molecules

#2: Chemical
ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: SO4
#3: Chemical
ChemComp-ACT / ACETATE ION


Mass: 59.044 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C2H3O2
#4: Chemical ChemComp-CL / CHLORIDE ION


Mass: 35.453 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: Cl
#5: Chemical
ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: C2H6O2
#6: Chemical ChemComp-H75 / 2-(4-bromophenyl)-5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-3(2H)-one


Mass: 293.159 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C13H13BrN2O
#7: Chemical ChemComp-LYS / LYSINE


Type: L-peptide linking / Mass: 147.195 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C6H15N2O2
#8: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 158 / 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: 2.95 Å3/Da / Density % sol: 58 % / Description: NONE
Crystal growpH: 5.5
Details: THE PROTEIN WAS CONCENTRATED TO 5.5 MG/ML IN 40 MM TRIS PH 8.0, 250 MM NACL, 30 MM MGCL2, 5 MM DTT AND SET UP IN A 1:1 RATIO WITH 1.6 TO 2.0 M AMMONIUM SULFATE, 100 MM SODIUM ACETATE BUFFER PH 5.0 TO 5.5.

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: Australian Synchrotron / Beamline: MX1 / Wavelength: 0.95369
DetectorType: ADSC CCD / Detector: CCD / Date: Nov 27, 2009
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.95369 Å / Relative weight: 1
ReflectionResolution: 1.75→66.8 Å / Num. obs: 37971 / % possible obs: 100 % / Observed criterion σ(I): 0 / Redundancy: 5.6 % / Rmerge(I) obs: 0.06 / Net I/σ(I): 15.4
Reflection shellResolution: 1.75→1.84 Å / Redundancy: 5.5 % / Rmerge(I) obs: 0.45 / Mean I/σ(I) obs: 3.5 / % possible all: 100

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Processing

Software
NameVersionClassification
REFMAC5.7.0032refinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 3ZSQ

3zsq


Resolution: 1.8→45.33 Å / Cor.coef. Fo:Fc: 0.959 / Cor.coef. Fo:Fc free: 0.952 / SU B: 1.982 / SU ML: 0.064 / Cross valid method: THROUGHOUT / ESU R: 0.117 / ESU R Free: 0.104 / Stereochemistry target values: MAXIMUM LIKELIHOOD
Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES REFINED INDIVIDUALLY. ALTHOUGH THERE IS A DIMER IN THE ASYMMETRIC UNIT, ONLY ONE OF TWO POSSIBLE COMPOUNDS WAS PUT INTO DENSITY, ...Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS. U VALUES REFINED INDIVIDUALLY. ALTHOUGH THERE IS A DIMER IN THE ASYMMETRIC UNIT, ONLY ONE OF TWO POSSIBLE COMPOUNDS WAS PUT INTO DENSITY, AS IT DOESN'T FIT THE DENSITY THAT WELL. SO THERE IS 'EXTRA' UNMODELLED DENSITY FOR ONE COMPOUND.
RfactorNum. reflection% reflectionSelection details
Rfree0.19452 1760 5 %RANDOM
Rwork0.17821 ---
obs0.17907 33277 99.93 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: MASK
Displacement parametersBiso mean: 27.958 Å2
Baniso -1Baniso -2Baniso -3
1--0.03 Å2-0.03 Å20 Å2
2---0.03 Å20 Å2
3---0.09 Å2
Refinement stepCycle: LAST / Resolution: 1.8→45.33 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2343 0 91 158 2592
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0050.0192725
X-RAY DIFFRACTIONr_bond_other_d0.0020.022634
X-RAY DIFFRACTIONr_angle_refined_deg1.1551.9583733
X-RAY DIFFRACTIONr_angle_other_deg0.76336100
X-RAY DIFFRACTIONr_dihedral_angle_1_deg4.8725362
X-RAY DIFFRACTIONr_dihedral_angle_2_deg32.85525.614114
X-RAY DIFFRACTIONr_dihedral_angle_3_deg12.85915478
X-RAY DIFFRACTIONr_dihedral_angle_4_deg13.08158
X-RAY DIFFRACTIONr_chiral_restr0.0570.2426
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.023141
X-RAY DIFFRACTIONr_gen_planes_other0.0020.02599
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_it1.4973.4941331
X-RAY DIFFRACTIONr_mcbond_other1.4953.4861326
X-RAY DIFFRACTIONr_mcangle_it2.5845.8521684
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it1.7213.8951394
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: 1.8→1.847 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.266 123 -
Rwork0.233 2502 -
obs--100 %

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