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- PDB-4b6e: Discovery of an allosteric mechanism for the regulation of HCV NS... -

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Entry
Database: PDB / ID: 4b6e
TitleDiscovery of an allosteric mechanism for the regulation of HCV NS3 protein function
ComponentsNON-STRUCTURAL PROTEIN 4A, SERINE PROTEASE NS3
KeywordsHYDROLASE / HELICASE-PROTEASE / ALLOSTERIC POCKET / FUSION PROTEIN
Function / homology
Function and homology information


hepacivirin / host cell mitochondrial membrane / host cell lipid droplet / symbiont-mediated suppression of host TRAF-mediated signal transduction / symbiont-mediated transformation of host cell / symbiont-mediated perturbation of host cell cycle G1/S transition checkpoint / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / SH3 domain binding / nucleoside-triphosphate phosphatase ...hepacivirin / host cell mitochondrial membrane / host cell lipid droplet / symbiont-mediated suppression of host TRAF-mediated signal transduction / symbiont-mediated transformation of host cell / symbiont-mediated perturbation of host cell cycle G1/S transition checkpoint / symbiont-mediated suppression of host JAK-STAT cascade via inhibition of STAT1 activity / symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity / SH3 domain binding / nucleoside-triphosphate phosphatase / channel activity / viral nucleocapsid / monoatomic ion transmembrane transport / clathrin-dependent endocytosis of virus by host cell / Hydrolases; Acting on peptide bonds (peptidases); Cysteine endopeptidases / host cell perinuclear region of cytoplasm / RNA helicase activity / host cell endoplasmic reticulum membrane / RNA helicase / symbiont-mediated suppression of host type I interferon-mediated signaling pathway / ribonucleoprotein complex / symbiont-mediated activation of host autophagy / RNA-directed RNA polymerase / chromatin extrusion motor activity / ATP-dependent H2AZ histone chaperone activity / ATP-dependent H3-H4 histone complex chaperone activity / cohesin loader activity / cysteine-type endopeptidase activity / viral RNA genome replication / serine-type endopeptidase activity / DNA clamp loader activity / RNA-directed RNA polymerase activity / fusion of virus membrane with host endosome membrane / : / viral envelope / host cell nucleus / virion attachment to host cell / host cell plasma membrane / virion membrane / structural molecule activity / ATP hydrolysis activity / proteolysis / RNA binding / zinc ion binding / ATP binding / membrane
Similarity search - Function
RNA Helicase; Chain A, domain 3 / RNA Helicase Chain A , domain 3 / Thrombin, subunit H - #120 / Hepatitus C virus, Non-structural 5a protein, C-terminal / Hepatitis C virus NS5A, 1B domain superfamily / Hepatitis C virus non-structural protein NS2, C-terminal domain / Hepatitis C virus non-structural protein NS2, N-terminal domain / Hepatitis C virus non-structural protein NS2 / HCV NS5a protein C-terminal region / Hepatitis C virus, Non-structural protein NS4b ...RNA Helicase; Chain A, domain 3 / RNA Helicase Chain A , domain 3 / Thrombin, subunit H - #120 / Hepatitus C virus, Non-structural 5a protein, C-terminal / Hepatitis C virus NS5A, 1B domain superfamily / Hepatitis C virus non-structural protein NS2, C-terminal domain / Hepatitis C virus non-structural protein NS2, N-terminal domain / Hepatitis C virus non-structural protein NS2 / HCV NS5a protein C-terminal region / Hepatitis C virus, Non-structural protein NS4b / Hepatitis C virus, Core protein, N-terminal / Hepatitis C virus core protein, chain A superfamily / : / Hepatitis C virus non-structural protein NS4b / Hepatitis C virus capsid protein / Hepatitis C virus, Non-structural protein NS2 / Hepatitis C virus, Non-structural 5a protein / Hepatitis C virus, Non-structural 5a protein, domain 1a / Hepatitis C virus non-structural 5a, 1B domain / NS5A domain 1a superfamily / : / Hepatitis C virus non-structural 5a protein membrane anchor / Hepatitis C virus non-structural 5a zinc finger domain / Hepatitis C virus non-structural 5a domain 1b / NS3 RNA helicase, C-terminal helical domain / Hepacivirus nonstructural protein 2 (NS2) protease domain profile. / Hepatitis C virus, Non-structural protein NS4a / Hepatitis C virus non-structural protein NS4a / Hepatitis C virus, Core protein, C-terminal / Hepatitis C virus core protein / Hepatitis C virus, Non-structural protein E2/NS1 / Hepatitis C virus non-structural protein E2/NS1 / Hepatitis C virus, Envelope glycoprotein E1 / Hepatitis C virus envelope glycoprotein E1 / RNA dependent RNA polymerase, hepatitis C virus / Viral RNA dependent RNA polymerase / Hepatitis C virus, NS3 protease, Peptidase S29 / Hepatitis C virus NS3 protease / Hepacivirus/Pegivirus NS3 protease domain profile. / DEAD box, Flavivirus / Flavivirus DEAD domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / Thrombin, subunit H / Reverse transcriptase/Diguanylate cyclase domain / P-loop containing nucleotide triphosphate hydrolases / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / Beta Barrel / P-loop containing nucleoside triphosphate hydrolase / Rossmann fold / Orthogonal Bundle / 3-Layer(aba) Sandwich / Mainly Beta / Mainly Alpha / Alpha Beta
Similarity search - Domain/homology
1H-indazol-7-amine / Genome polyprotein
Similarity search - Component
Biological speciesHEPATITIS C VIRUS
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.46 Å
AuthorsSaalau-Bethell, S.M. / Woodhead, A.J. / Chessari, G. / Carr, M.G. / Coyle, J. / Graham, B. / Hiscock, S.D. / Murray, C.W. / Pathuri, P. / Rich, S.J. ...Saalau-Bethell, S.M. / Woodhead, A.J. / Chessari, G. / Carr, M.G. / Coyle, J. / Graham, B. / Hiscock, S.D. / Murray, C.W. / Pathuri, P. / Rich, S.J. / Richardson, C.J. / Williams, P.A. / Jhoti, H.
CitationJournal: Nat.Chem.Biol. / Year: 2012
Title: Discovery of an Allosteric Mechanism for the Regulation of Hcv Ns3 Protein Function.
Authors: Saalau-Bethell, S.M. / Woodhead, A.J. / Chessari, G. / Carr, M.G. / Coyle, J. / Graham, B. / Hiscock, S.D. / Murray, C.W. / Pathuri, P. / Rich, S.J. / Richardson, C.J. / Williams, P.A. / Jhoti, H.
History
DepositionAug 9, 2012Deposition site: PDBE / Processing site: PDBE
Revision 1.0Oct 3, 2012Provider: repository / Type: Initial release
Revision 1.1Oct 31, 2012Group: Database references
Revision 1.2Feb 6, 2013Group: Atomic model
Revision 1.3Dec 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 / struct_sheet / 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 / _struct_sheet.number_strands / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Remark 700 SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AC" IN EACH CHAIN ON SHEET RECORDS BELOW ... SHEET DETERMINATION METHOD: DSSP THE SHEETS PRESENTED AS "AC" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 6-STRANDED BARREL THIS IS REPRESENTED BY A 7-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL. THE SHEETS PRESENTED AS "BB" IN EACH CHAIN ON SHEET RECORDS BELOW IS ACTUALLY AN 6-STRANDED BARREL THIS IS REPRESENTED BY A 7-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS ARE IDENTICAL.

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: NON-STRUCTURAL PROTEIN 4A, SERINE PROTEASE NS3
B: NON-STRUCTURAL PROTEIN 4A, SERINE PROTEASE NS3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)145,2585
Polymers144,9332
Non-polymers3253
Water6,233346
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area3070 Å2
ΔGint-42.3 kcal/mol
Surface area51700 Å2
MethodPISA
Unit cell
Length a, b, c (Å)91.404, 111.309, 141.840
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 NON-STRUCTURAL PROTEIN 4A, SERINE PROTEASE NS3 / NS4A / P8 / HEPACIVIRIN / NS3P / P70


Mass: 72466.305 Da / Num. of mol.: 2 / Fragment: RESIDUES 1678-1689, RESIDUES 1029-1657
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) HEPATITIS C VIRUS (ISOLATE BK) / Strain: GENOTYPE 1B / Production host: ESCHERICHIA COLI (E. coli) / Strain (production host): BL21(DE3) / Variant (production host): ROSETTA 2
References: UniProt: P26663, hepacivirin, nucleoside-triphosphate phosphatase, RNA helicase
#2: Chemical ChemComp-SO4 / SULFATE ION


Mass: 96.063 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: SO4
#3: Chemical ChemComp-10L / 1H-indazol-7-amine


Mass: 133.151 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C7H7N3
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 346 / Source method: isolated from a natural source / Formula: H2O
Sequence detailsTHE PROTEIN CRYSTALLISED IS A FUSION PROTEIN, COMPRISING A HEXA-HIS TAG, A LINKER REGION, A 11 ...THE PROTEIN CRYSTALLISED IS A FUSION PROTEIN, COMPRISING A HEXA-HIS TAG, A LINKER REGION, A 11 RESIDUE NS4A COFACTOR PEPTIDE AND THE NS3 PROTEIN

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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: 2.55 Å3/Da / Density % sol: 52 % / Description: NONE
Crystal growpH: 6.5
Details: 0.2 M 2-(N-MORPHOLINO)ETHANESULFONIC ACID (MES)-NAOH PH 6.6, 14-20% W/V POLYETHYLENE GLYCOL (PEG) 6000, 10% W/V 2-METHYL-2,4-PENTANDIOL (MPD)

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ESRF / Beamline: ID23-1 / Wavelength: 0.9762
DetectorType: ADSC QUANTUM 315r / Detector: CCD / Date: Oct 26, 2007
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9762 Å / Relative weight: 1
ReflectionResolution: 2.45→87.6 Å / Num. obs: 52842 / % possible obs: 98.7 % / Observed criterion σ(I): 2 / Redundancy: 3 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 10.3
Reflection shellResolution: 2.45→2.49 Å / Redundancy: 3.1 % / Rmerge(I) obs: 0.38 / Mean I/σ(I) obs: 2.7 / % possible all: 100

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Processing

Software
NameVersionClassification
REFMAC5.2.0019Irefinement
MOSFLMdata reduction
SCALAdata scaling
CSEARCHphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1CU1

1cu1


Resolution: 2.46→87.57 Å / Cor.coef. Fo:Fc: 0.945 / Cor.coef. Fo:Fc free: 0.902 / SU B: 8.52 / SU ML: 0.194 / Cross valid method: THROUGHOUT / ESU R: 0.49 / ESU R Free: 0.292 / Stereochemistry target values: MAXIMUM LIKELIHOOD / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS.
RfactorNum. reflection% reflectionSelection details
Rfree0.25723 2645 5.1 %RANDOM
Rwork0.18742 ---
obs0.19094 49185 97.96 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å / Solvent model: BABINET MODEL WITH MASK
Displacement parametersBiso mean: 33.467 Å2
Baniso -1Baniso -2Baniso -3
1-0.43 Å20 Å20 Å2
2---0.23 Å20 Å2
3----0.19 Å2
Refinement stepCycle: LAST / Resolution: 2.46→87.57 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms9602 0 20 346 9968
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0120.0229838
X-RAY DIFFRACTIONr_bond_other_d0.0010.026497
X-RAY DIFFRACTIONr_angle_refined_deg1.3861.96313438
X-RAY DIFFRACTIONr_angle_other_deg0.953315878
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.44151284
X-RAY DIFFRACTIONr_dihedral_angle_2_deg35.31322.928362
X-RAY DIFFRACTIONr_dihedral_angle_3_deg16.381151497
X-RAY DIFFRACTIONr_dihedral_angle_4_deg15.3431566
X-RAY DIFFRACTIONr_chiral_restr0.1030.21573
X-RAY DIFFRACTIONr_gen_planes_refined0.0040.0211030
X-RAY DIFFRACTIONr_gen_planes_other0.0010.021955
X-RAY DIFFRACTIONr_nbd_refined0.2060.22027
X-RAY DIFFRACTIONr_nbd_other0.1910.26520
X-RAY DIFFRACTIONr_nbtor_refined0.180.24881
X-RAY DIFFRACTIONr_nbtor_other0.0870.25174
X-RAY DIFFRACTIONr_xyhbond_nbd_refined0.1110.275
X-RAY DIFFRACTIONr_xyhbond_nbd_other0.0260.21
X-RAY DIFFRACTIONr_metal_ion_refined
X-RAY DIFFRACTIONr_metal_ion_other
X-RAY DIFFRACTIONr_symmetry_vdw_refined0.2340.214
X-RAY DIFFRACTIONr_symmetry_vdw_other0.1990.248
X-RAY DIFFRACTIONr_symmetry_hbond_refined0.1470.22
X-RAY DIFFRACTIONr_symmetry_hbond_other
X-RAY DIFFRACTIONr_symmetry_metal_ion_refined
X-RAY DIFFRACTIONr_symmetry_metal_ion_other
X-RAY DIFFRACTIONr_mcbond_it0.05556394
X-RAY DIFFRACTIONr_mcbond_other0.02152612
X-RAY DIFFRACTIONr_mcangle_it0.08610371
X-RAY DIFFRACTIONr_mcangle_other
X-RAY DIFFRACTIONr_scbond_it0.08163444
X-RAY DIFFRACTIONr_scbond_other
X-RAY DIFFRACTIONr_scangle_it0.1037.53067
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: 2.465→2.529 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.332 214 -
Rwork0.259 3651 -
obs--99.92 %

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