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Entry
Database: PDB / ID: 3bxs
TitleCrystal Structures Of Highly Constrained Substrate And Hydrolysis Products Bound To HIV-1 Protease. Implications For Catalytic Mechanism
ComponentsProtease
KeywordsHYDROLASE / HIV protease / HIVPR / substrate / product / AIDS / Aspartyl protease / Capsid maturation / Core protein / Cytoplasm / DNA integration / DNA recombination / DNA-directed DNA polymerase / Endonuclease / Lipoprotein / Magnesium / Membrane / Metal-binding / Multifunctional enzyme / Myristate / Nuclease / Nucleotidyltransferase / Nucleus / Phosphoprotein / RNA-binding / RNA-directed DNA polymerase / Transferase / Viral nucleoprotein / Virion / Zinc / Zinc-finger
Function / homology
Function and homology information


HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / host multivesicular body / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency ...HIV-1 retropepsin / symbiont-mediated activation of host apoptosis / retroviral ribonuclease H / exoribonuclease H / exoribonuclease H activity / host multivesicular body / DNA integration / viral genome integration into host DNA / RNA-directed DNA polymerase / establishment of integrated proviral latency / symbiont-mediated suppression of host gene expression / viral penetration into host nucleus / RNA stem-loop binding / RNA-directed DNA polymerase activity / RNA-DNA hybrid ribonuclease activity / Transferases; Transferring phosphorus-containing groups; Nucleotidyltransferases / host cell / viral nucleocapsid / DNA recombination / DNA-directed DNA polymerase / Hydrolases; Acting on ester bonds / aspartic-type endopeptidase activity / DNA-directed DNA polymerase activity / symbiont entry into host cell / viral translational frameshifting / lipid binding / host cell nucleus / host cell plasma membrane / structural molecule activity / virion membrane / proteolysis / DNA binding / zinc ion binding / membrane
Similarity search - Function
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 ...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 / RNase H type-1 domain profile. / Ribonuclease H domain / Matrix protein, lentiviral and alpha-retroviral, N-terminal / Retroviral nucleocapsid Gag protein p24, C-terminal domain / Gag protein p24 C-terminal domain / Reverse transcriptase domain / Reverse transcriptase (RT) catalytic domain profile. / Retropepsins / Retroviral aspartyl protease / Aspartyl protease, retroviral-type family profile. / Peptidase A2A, retrovirus, catalytic / Reverse transcriptase (RNA-dependent DNA polymerase) / Retroviral matrix protein / Retrovirus capsid, C-terminal / Retrovirus capsid, N-terminal / zinc finger / Zinc knuckle / Zinc finger, CCHC-type superfamily / Cathepsin D, subunit A; domain 1 / Acid Proteases / Zinc finger, CCHC-type / Zinc finger CCHC-type profile. / Aspartic peptidase, active site / Eukaryotic and viral aspartyl proteases active site. / Ribonuclease H superfamily / Aspartic peptidase domain superfamily / Ribonuclease H-like superfamily / Reverse transcriptase/Diguanylate cyclase domain / DNA/RNA polymerase superfamily / Beta Barrel / Mainly Beta
Similarity search - Domain/homology
Chem-DRS / Gag-Pol polyprotein
Similarity search - Component
MethodX-RAY DIFFRACTION / FOURIER SYNTHESIS / Resolution: 1.6 Å
AuthorsTyndall, J.D. / Pattenden, L.K. / Reid, R.C. / Hu, S.H. / Alewood, D. / Alewood, P.F. / Walsh, T. / Fairlie, D.P. / Martin, J.L.
Citation
Journal: Biochemistry / Year: 2008
Title: Crystal Structures of Highly Constrained Substrate and Hydrolysis Products Bound to HIV-1 Protease. Implications for the Catalytic Mechanism
Authors: Tyndall, J.D. / Pattenden, L.K. / Reid, R.C. / Hu, S.H. / Alewood, D. / Alewood, P.F. / Walsh, T. / Fairlie, D.P. / Martin, J.L.
#1: Journal: Biochemistry / Year: 1999
Title: Molecular recognition of macrocyclic peptidomimetic inhibitors by HIV-1 protease
Authors: Martin, J.L. / Begun, J. / Schindeler, A. / Wickramasinghe, W.A. / Alewood, D. / Alewood, P.F. / Bergman, D.A. / Brinkworth, R.I. / Abbenante, G. / March, D.R. / Reid, R.C. / Fairlie, D.P.
History
DepositionJan 14, 2008Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Mar 25, 2008Provider: repository / Type: Initial release
Revision 1.1Jul 13, 2011Group: Version format compliance
Revision 1.2Oct 25, 2017Group: Refinement description / Category: software
Revision 1.3Nov 10, 2021Group: Database references / Derived calculations
Category: database_2 / struct_conn ...database_2 / 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 / _struct_conn.pdbx_leaving_atom_flag / _struct_ref_seq_dif.details / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4Nov 1, 2023Group: Data collection / Refinement description
Category: chem_comp_atom / chem_comp_bond / pdbx_initial_refinement_model
Revision 1.5Nov 15, 2023Group: Data collection / Category: chem_comp_atom / chem_comp_bond / Item: _chem_comp_atom.atom_id / _chem_comp_bond.atom_id_2

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Protease
B: Protease
hetero molecules


Theoretical massNumber of molelcules
Total (without water)22,5447
Polymers21,5312
Non-polymers1,0135
Water3,621201
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area4410 Å2
ΔGint-56.5 kcal/mol
Surface area9280 Å2
MethodPISA
Unit cell
Length a, b, c (Å)50.87, 57.65, 61.53
Angle α, β, γ (deg.)90.000, 90.000, 90.000
Int Tables number19
Space group name H-MP212121

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Components

#1: Protein Protease / Retropepsin / PR


Mass: 10765.687 Da / Num. of mol.: 2 / Fragment: UNP residues 491-589
Mutation: Q7K, L33I, C67(ABA), C95(ABA), Q107K, L133I, C167(ABA), C195(ABA)
Source method: obtained synthetically
Details: Chemically synthesized protein corresponding to the protease from the HIV1
References: UniProt: P03369, HIV-1 retropepsin
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-DRS / (9S,12S)-9-(1-methylethyl)-7,10-dioxo-2-oxa-8,11-diazabicyclo[12.2.2]octadeca-1(16),14,17-triene-12-carboxylic acid


Mass: 362.420 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C19H26N2O5
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 201 / 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: 2.1 Å3/Da / Density % sol: 41.29 %
Crystal growTemperature: 293 K / Method: vapor diffusion, hanging drop / pH: 5.5
Details: Acetate, (NH4)2SO4, pH5.5, vapor diffusion, hanging drop, temperature 293K, VAPOR DIFFUSION, HANGING DROP

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418 Å
DetectorType: RIGAKU RAXIS IIC / Detector: IMAGE PLATE / Date: Apr 16, 1998 / Details: Yale mirrors
RadiationMonochromator: Ni FILTER / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.6→50 Å / Num. all: 22094 / Num. obs: 22094 / % possible obs: 90 % / Observed criterion σ(I): 0 / Redundancy: 2.6 % / Rmerge(I) obs: 0.031 / Χ2: 1.056 / Net I/σ(I): 20.9
Reflection shellResolution: 1.6→1.66 Å / Rmerge(I) obs: 0.141 / Mean I/σ(I) obs: 4.8 / Num. unique all: 1253 / Χ2: 1.084 / % possible all: 52.3

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Processing

Software
NameVersionClassificationNB
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACT3.004data extraction
X-PLORphasing
RefinementMethod to determine structure: FOURIER SYNTHESIS
Starting model: PDB ENTRY 1CPI

1cpi


Resolution: 1.6→8 Å / Cross valid method: THROUGHOUT / σ(F): 0
RfactorNum. reflection% reflectionSelection details
Rfree0.205 2173 9 %Random
Rwork0.177 ---
all-21887 --
obs-21887 90.2 %-
Solvent computationBsol: 73.119 Å2
Displacement parametersBiso mean: 18.933 Å2
Baniso -1Baniso -2Baniso -3
1-2.466 Å20 Å20 Å2
2---0.384 Å20 Å2
3----2.082 Å2
Refine analyzeLuzzati coordinate error obs: 0.17 Å
Refinement stepCycle: LAST / Resolution: 1.6→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1534 0 67 201 1802
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONc_mcbond_it1.1261.5
X-RAY DIFFRACTIONc_scbond_it1.8552
X-RAY DIFFRACTIONc_mcangle_it1.7152
X-RAY DIFFRACTIONc_scangle_it2.6882.5
LS refinement shellResolution: 1.6→1.61 Å /
RfactorNum. reflection
Rfree0.33 20
Rwork0.272 -
obs-222
Xplor file
Refine-IDSerial noParam file
X-RAY DIFFRACTION1protein_rep.param
X-RAY DIFFRACTION2water.param
X-RAY DIFFRACTION3\CNS\so4_dund_ch.param
X-RAY DIFFRACTION4\CNS\Nter_dund.param

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