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- PDB-6e3p: The N-terminal domain of PA endonuclease from the influenza H1N1 ... -

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Basic information

Entry
Database: PDB / ID: 6e3p
TitleThe N-terminal domain of PA endonuclease from the influenza H1N1 virus in complex with 6-(3-(1H-tetrazol-5-yl)phenyl)-3-hydroxy-4-oxo-1,4-dihydropyridine-2-carboxylic acid
ComponentsPolymerase acidic protein
KeywordsHYDROLASE/HYDROLASE INHIBITOR / PA endonuclease / inhibitor / influenza / H1N1 / HYDROLASE-HYDROLASE INHIBITOR complex
Function / homology
Function and homology information


symbiont-mediated suppression of host mRNA transcription via inhibition of RNA polymerase II activity / cap snatching / endonuclease activity / host cell cytoplasm / Hydrolases; Acting on ester bonds / 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-HO1 / : / Polymerase acidic protein
Similarity search - Component
Biological speciesInfluenza A virus
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.8 Å
AuthorsMorrison, C.N. / Dick, B.L. / Credille, C.V. / Cohen, S.M.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01 GM098435 United States
CitationJournal: J.Med.Chem. / Year: 2019
Title: SAR Exploration of Tight-Binding Inhibitors of Influenza Virus PA Endonuclease.
Authors: Credille, C.V. / Morrison, C.N. / Stokes, R.W. / Dick, B.L. / Feng, Y. / Sun, J. / Chen, Y. / Cohen, S.M.
History
DepositionJul 14, 2018Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jul 17, 2019Provider: repository / Type: Initial release
Revision 1.1Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.2Jan 29, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
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 / struct_conn
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_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)23,1775
Polymers22,4691
Non-polymers7084
Water905
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area150 Å2
ΔGint-7 kcal/mol
Surface area9360 Å2
MethodPISA
Unit cell
Length a, b, c (Å)74.950, 74.950, 120.759
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)
Strain: swl A/California/04/2009 H1N1 / Gene: PA / Production host: Escherichia coli BL21 (bacteria)
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-HO1 / 3-hydroxy-4-oxo-6-[3-(1H-tetrazol-5-yl)phenyl]-1,4-dihydropyridine-2-carboxylic acid


Mass: 299.242 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C13H9N5O4
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 5 / 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: 2.24 Å3/Da / Density % sol: 45.08 %
Crystal growTemperature: 306 K / Method: vapor diffusion, hanging drop / pH: 7.8
Details: 30% PEG4000, 100 mM Tris, pH 8.35, 200-220 mM sodium acetate

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: ROTATING ANODE / Type: BRUKER AXS MICROSTAR / Wavelength: 1.54 Å
DetectorType: APEX II CCD / Detector: CCD / Date: Sep 1, 2017
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.54 Å / Relative weight: 1
ReflectionResolution: 2.8→44.25 Å / Num. obs: 5394 / % possible obs: 99.9 % / Redundancy: 14.11 % / Rmerge(I) obs: 0.098 / Net I/σ(I): 20.59
Reflection shellResolution: 2.8→2.9 Å / Redundancy: 11.21 % / Rmerge(I) obs: 0.419 / Mean I/σ(I) obs: 3.79 / Num. unique obs: 521 / % possible all: 99.8

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Processing

Software
NameVersionClassification
REFMAC5.8.0230refinement
APEXdata reduction
APEXdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 4AWM

4awm


Resolution: 2.8→44.25 Å / Cor.coef. Fo:Fc: 0.934 / Cor.coef. Fo:Fc free: 0.859 / SU B: 17.349 / SU ML: 0.336 / Cross valid method: THROUGHOUT / ESU R Free: 0.487 / Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
RfactorNum. reflection% reflectionSelection details
Rfree0.30135 518 9.7 %RANDOM
Rwork0.20595 ---
obs0.21536 4837 99.68 %-
Solvent computationIon probe radii: 0.8 Å / Shrinkage radii: 0.8 Å / VDW probe radii: 1.2 Å
Displacement parametersBiso mean: 40.261 Å2
Baniso -1Baniso -2Baniso -3
1--0.54 Å2-0.27 Å2-0 Å2
2---0.54 Å20 Å2
3---1.76 Å2
Refinement stepCycle: 1 / Resolution: 2.8→44.25 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1451 0 46 5 1502
Refine LS restraints
Refine-IDTypeDev idealDev ideal targetNumber
X-RAY DIFFRACTIONr_bond_refined_d0.0140.0141528
X-RAY DIFFRACTIONr_bond_other_d0.0010.0171325
X-RAY DIFFRACTIONr_angle_refined_deg1.3711.7082053
X-RAY DIFFRACTIONr_angle_other_deg0.8171.6493105
X-RAY DIFFRACTIONr_dihedral_angle_1_deg6.5795171
X-RAY DIFFRACTIONr_dihedral_angle_2_deg33.25321.18393
X-RAY DIFFRACTIONr_dihedral_angle_3_deg18.15315278
X-RAY DIFFRACTIONr_dihedral_angle_4_deg20.1141514
X-RAY DIFFRACTIONr_chiral_restr0.0580.2195
X-RAY DIFFRACTIONr_gen_planes_refined0.0050.021701
X-RAY DIFFRACTIONr_gen_planes_other0.0010.02305
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_it2.6843.95693
X-RAY DIFFRACTIONr_mcbond_other2.6743.945692
X-RAY DIFFRACTIONr_mcangle_it4.3375.904861
X-RAY DIFFRACTIONr_mcangle_other4.3385.909862
X-RAY DIFFRACTIONr_scbond_it3.0444.357834
X-RAY DIFFRACTIONr_scbond_other3.0344.357833
X-RAY DIFFRACTIONr_scangle_it
X-RAY DIFFRACTIONr_scangle_other5.0266.3871193
X-RAY DIFFRACTIONr_long_range_B_refined7.25744.4161750
X-RAY DIFFRACTIONr_long_range_B_other7.25844.4131750
X-RAY DIFFRACTIONr_rigid_bond_restr
X-RAY DIFFRACTIONr_sphericity_free
X-RAY DIFFRACTIONr_sphericity_bonded
LS refinement shellResolution: 2.8→2.873 Å / Total num. of bins used: 20
RfactorNum. reflection% reflection
Rfree0.319 43 -
Rwork0.263 348 -
obs--99.24 %

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