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- PDB-6e0q: The N-terminal domain of PA endonuclease from the influenza H1N1 ... -

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Basic information

Entry
Database: PDB / ID: 6e0q
TitleThe N-terminal domain of PA endonuclease from the influenza H1N1 virus in complex with 4,6-dihydroxy-2-methyl-5-oxocyclohepta-1,3,6-triene-1-carboxylic acid
ComponentsPolymerase acidic protein
KeywordsHYDROLASE/HYDROLASE INHIBITOR / Inhibitor / Endonuclease / Influenza / PA domain / HYDROLASE-HYDROLASE INHIBITOR complex / VIRAL PROTEIN
Function / homology
Function and homology information


cap snatching / symbiont-mediated suppression of host mRNA transcription via inhibition of RNA polymerase II activity / endonuclease activity / Hydrolases; Acting on ester bonds / host cell cytoplasm / symbiont-mediated suppression of host gene expression / viral translational frameshifting / viral RNA genome replication / DNA-templated transcription / host cell nucleus ...cap snatching / symbiont-mediated suppression of host mRNA transcription via inhibition of RNA polymerase II activity / endonuclease activity / Hydrolases; Acting on ester bonds / host cell cytoplasm / symbiont-mediated suppression of host gene expression / viral translational frameshifting / viral RNA genome replication / DNA-templated transcription / host cell nucleus / RNA binding / metal ion binding
Similarity search - Function
Influenza RNA-dependent RNA polymerase subunit PA, endonuclease domain / Restriction Endonuclease / Polymerase acidic protein / Influenza RNA-dependent RNA polymerase subunit PA / Influenza RNA-dependent RNA polymerase subunit PA, endonuclease domain / Influenza RNA-dependent RNA polymerase subunit PA / 3-Layer(aba) Sandwich / Alpha Beta
Similarity search - Domain/homology
Chem-HKD / : / Polymerase acidic protein
Similarity search - Component
Biological speciesInfluenza A virus
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.35 Å
AuthorsDick, B.L. / Morrison, C.N. / Cohen, S.M.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM098435 United States
CitationJournal: J. Med. Chem. / Year: 2018
Title: Structure-Activity Relationships in Metal-Binding Pharmacophores for Influenza Endonuclease.
Authors: Credille, C.V. / Dick, B.L. / Morrison, C.N. / Stokes, R.W. / Adamek, R.N. / Wu, N.C. / Wilson, I.A. / Cohen, S.M.
History
DepositionJul 6, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 7, 2018Provider: repository / Type: Initial release
Revision 1.1Dec 5, 2018Group: Data collection / Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.name
Revision 1.2Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.3Oct 11, 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
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_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.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.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_label_atom_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

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Polymerase acidic protein
hetero molecules


Theoretical massNumber of molelcules
Total (without water)22,8996
Polymers22,4691
Non-polymers4305
Water1267
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area700 Å2
ΔGint0 kcal/mol
Surface area9260 Å2
MethodPISA
Unit cell
Length a, b, c (Å)75.090, 75.090, 119.670
Angle α, β, γ (deg.)90.00, 90.00, 120.00
Int Tables number180
Space group name H-MP6222

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Components

#1: Protein Polymerase acidic protein / RNA-directed RNA polymerase subunit P2


Mass: 22468.666 Da / Num. of mol.: 1 / Fragment: N-terminal domain (UNP residues 1-198)
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Influenza A virus / Strain: swl A/California/04/2009 H1N1 / Gene: PA / Production host: Escherichia coli (E. coli)
References: UniProt: C3W5S0, Hydrolases; Acting on ester bonds
#2: Chemical ChemComp-MN / MANGANESE (II) ION


Mass: 54.938 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mn
#3: Chemical ChemComp-HKD / 4,6-dihydroxy-2-methyl-5-oxocyclohepta-1,3,6-triene-1-carboxylic acid


Mass: 196.157 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H8O5 / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-EDO / 1,2-ETHANEDIOL / ETHYLENE GLYCOL


Mass: 62.068 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C2H6O2
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 7 / 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: 2.31 Å3/Da / Density % sol: 46.68 % / Description: Octahedron
Crystal growTemperature: 306 K / Method: vapor diffusion, hanging drop / pH: 7.5
Details: 0.5 mM inhibitor, 30-32% PEG4000, 100 mM Tris, pH 8.35, 200-220 mM sodium acetate

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: ALS / Beamline: 5.0.1 / Wavelength: 0.97741 Å
DetectorType: DECTRIS PILATUS3 6M / Detector: PIXEL / Date: Jun 15, 2018
RadiationMonochromator: single crystal, cylindrically bent, Si(220) / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97741 Å / Relative weight: 1
ReflectionResolution: 2.35→44.03 Å / Num. obs: 8874 / % possible obs: 100 % / Redundancy: 35.1 % / Rmerge(I) obs: 0.07 / Net I/σ(I): 40.3
Reflection shellResolution: 2.35→2.43 Å / Redundancy: 36.8 % / Rmerge(I) obs: 0.517 / Mean I/σ(I) obs: 8.6 / Num. unique obs: 846 / % possible all: 100

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Processing

Software
NameVersionClassification
REFMAC5.8.0222refinement
iMOSFLMdata reduction
Aimlessdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB entry 4AWM

4awm


Resolution: 2.35→44.03 Å / Cor.coef. Fo:Fc: 0.943 / Cor.coef. Fo:Fc free: 0.923 / SU B: 7.652 / SU ML: 0.18 / Cross valid method: THROUGHOUT / ESU R: 0.432 / ESU R Free: 0.273 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.25788 880 10 %RANDOM
Rwork0.20015 ---
obs0.20584 7962 99.98 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 44.568 Å2
Baniso -1Baniso -2Baniso -3
1--0.61 Å2-0.3 Å20 Å2
2---0.61 Å2-0 Å2
3---1.97 Å2
Refinement stepCycle: 1 / Resolution: 2.35→44.03 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1479 0 24 7 1510
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0090.0141529
X-RAY DIFFRACTIONr_bond_other_d0.0010.0181352
X-RAY DIFFRACTIONr_angle_refined_deg1.41.6782048
X-RAY DIFFRACTIONr_angle_other_deg0.9611.6523173
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.185176
X-RAY DIFFRACTIONr_dihedral_angle_2_deg34.83621.27794
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.90515285
X-RAY DIFFRACTIONr_dihedral_angle_4_deg23.1991514
X-RAY DIFFRACTIONr_chiral_restr0.070.2198
X-RAY DIFFRACTIONr_gen_planes_refined0.0060.021696
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02298
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_it3.2424.4710
X-RAY DIFFRACTIONr_mcbond_other3.2414.398709
X-RAY DIFFRACTIONr_mcangle_it4.596.594884
X-RAY DIFFRACTIONr_mcangle_other4.5886.597885
X-RAY DIFFRACTIONr_scbond_it3.844.751819
X-RAY DIFFRACTIONr_scbond_other3.8384.752820
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other5.7856.9581165
X-RAY DIFFRACTIONr_long_range_B_refined7.21948.8931731
X-RAY DIFFRACTIONr_long_range_B_other7.21748.9091732
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.35→2.411 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.286 64 -
Rwork0.193 570 -
obs--100 %

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