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- PDB-9d9t: Human norovirus GII.4 Sydney protease R112A mutant in complex wit... -

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Basic information

Entry
Database: PDB / ID: 9d9t
TitleHuman norovirus GII.4 Sydney protease R112A mutant in complex with rupintrivir
ComponentsPeptidase C37
KeywordsVIRAL PROTEIN / Viral protease with inhibitor
Function / homology
Function and homology information


host cell / RNA helicase activity / cysteine-type endopeptidase activity / viral RNA genome replication / RNA-directed RNA polymerase activity / DNA-templated transcription / ATP hydrolysis activity / proteolysis / RNA binding / ATP binding
Similarity search - Function
Viral polyprotein, Caliciviridae N-terminal / Viral polyprotein N-terminal / Norovirus 3C-like protease (NV 3CLpro) domain profile. / Norovirus peptidase C37 / Southampton virus-type processing peptidase / Helicase, superfamily 3, single-stranded RNA virus / Superfamily 3 helicase of positive ssRNA viruses domain profile. / Helicase, superfamily 3, single-stranded DNA/RNA virus / RNA helicase / RNA-directed RNA polymerase, C-terminal domain ...Viral polyprotein, Caliciviridae N-terminal / Viral polyprotein N-terminal / Norovirus 3C-like protease (NV 3CLpro) domain profile. / Norovirus peptidase C37 / Southampton virus-type processing peptidase / Helicase, superfamily 3, single-stranded RNA virus / Superfamily 3 helicase of positive ssRNA viruses domain profile. / Helicase, superfamily 3, single-stranded DNA/RNA virus / RNA helicase / RNA-directed RNA polymerase, C-terminal domain / Viral RNA-dependent RNA polymerase / Reverse transcriptase/Diguanylate cyclase domain / RNA-directed RNA polymerase, catalytic domain / RdRp of positive ssRNA viruses catalytic domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / Peptidase S1, PA clan, chymotrypsin-like fold / Peptidase S1, PA clan / DNA/RNA polymerase superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Chem-AG7 / IODIDE ION / Genome polyprotein
Similarity search - Component
Biological speciesNorovirus
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2 Å
AuthorsPham, S.H. / Neetu, N. / Sankaran, B. / Prasad, B.V.V.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)P01 AI057788 United States
Robert A. Welch FoundationQ-1279 United States
CitationJournal: J.Virol. / Year: 2025
Title: Conformational flexibility is a critical factor in designing broad-spectrum human norovirus protease inhibitors.
Authors: Pham, S. / Zhao, B. / Neetu, N. / Sankaran, B. / Patil, K. / Ramani, S. / Song, Y. / Estes, M.K. / Palzkill, T. / Prasad, B.V.V.
History
DepositionAug 21, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 19, 2025Provider: repository / Type: Initial release
Revision 1.1Mar 12, 2025Group: Database references / Category: citation / Item: _citation.journal_volume

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Peptidase C37
hetero molecules


Theoretical massNumber of molelcules
Total (without water)20,6347
Polymers19,3981
Non-polymers1,2356
Water93752
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: HuNoV GII.4 Sydney protease R112A mutant in complex with Rupintrivir
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)98.350, 98.350, 46.280
Angle α, β, γ (deg.)90.000, 90.000, 120.000
Int Tables number154
Space group name H-MP3221
Space group name HallP322"
Symmetry operation#1: x,y,z
#2: -y,x-y,z+2/3
#3: -x+y,-x,z+1/3
#4: x-y,-y,-z+1/3
#5: -x,-x+y,-z+2/3
#6: y,x,-z
Components on special symmetry positions
IDModelComponents
11A-205-

IOD

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Components

#1: Protein Peptidase C37


Mass: 19398.352 Da / Num. of mol.: 1 / Mutation: R112A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Norovirus / Production host: Escherichia coli (E. coli) / References: UniProt: K4L8Z7
#2: Chemical ChemComp-AG7 / 4-{2-(4-FLUORO-BENZYL)-6-METHYL-5-[(5-METHYL-ISOXAZOLE-3-CARBONYL)-AMINO]-4-OXO-HEPTANOYLAMINO}-5-(2-OXO-PYRROLIDIN-3-YL)-PENTANOIC ACID ETHYL ESTER / RUPINTRIVIR, bound form


Mass: 600.678 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C31H41FN4O7 / Feature type: SUBJECT OF INVESTIGATION / Comment: antivirus, protease inhibitor*YM
#3: Chemical
ChemComp-IOD / IODIDE ION


Mass: 126.904 Da / Num. of mol.: 5 / Source method: obtained synthetically / Formula: I
#4: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 52 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interestY
Has protein modificationY

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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: 3.33 Å3/Da / Density % sol: 63.07 %
Crystal growTemperature: 298 K / Method: vapor diffusion, sitting drop / pH: 7.5
Details: 0.02 M Magnesium chloride hexahydrate, 0.1M HEPES pH 7.5, 22 % w/v Poly(acrylic acid sodium salt) 5100, 0.2M potassium iodide

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Data collection

DiffractionMean temperature: 100 K / Serial crystal experiment: N
Diffraction sourceSource: SYNCHROTRON / Site: SSRL / Beamline: BL9-2 / Wavelength: 0.98 Å
DetectorType: DECTRIS PILATUS 6M / Detector: PIXEL / Date: Feb 12, 2024
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.98 Å / Relative weight: 1
ReflectionResolution: 2→42.59 Å / Num. obs: 15510 / % possible obs: 87.7 % / Redundancy: 21.1 % / Biso Wilson estimate: 41.27 Å2 / CC1/2: 1 / CC star: 1 / Rmerge(I) obs: 0.074 / Rpim(I) all: 0.016 / Rrim(I) all: 0.076 / Net I/σ(I): 22.3
Reflection shellResolution: 2→2.03 Å / Mean I/σ(I) obs: 3.6 / Num. unique obs: 871 / CC1/2: 0.929 / CC star: 0.981 / Rpim(I) all: 0.231 / % possible all: 100

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Processing

Software
NameVersionClassification
PHENIX1.21rc1_5156refinement
xia2data reduction
xia2data scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT / Resolution: 2→42.59 Å / SU ML: 0.3019 / Cross valid method: FREE R-VALUE / σ(F): 1.34 / Phase error: 36.8508
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
RfactorNum. reflection% reflection
Rfree0.2363 782 5.04 %
Rwork0.2132 14726 -
obs0.2144 15508 87.69 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.1 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso mean: 45.54 Å2
Refinement stepCycle: LAST / Resolution: 2→42.59 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1204 0 48 52 1304
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.00491277
X-RAY DIFFRACTIONf_angle_d0.70661730
X-RAY DIFFRACTIONf_chiral_restr0.05193
X-RAY DIFFRACTIONf_plane_restr0.0056218
X-RAY DIFFRACTIONf_dihedral_angle_d9.6104177
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2-2.130.31811470.25832747X-RAY DIFFRACTION99.69
2.13-2.290.376910.29491654X-RAY DIFFRACTION59.8
2.29-2.520.31591380.29352732X-RAY DIFFRACTION98.22
2.52-2.880.31521220.26312312X-RAY DIFFRACTION82.9
2.88-3.630.24571360.22362625X-RAY DIFFRACTION93.43
3.64-42.590.18441480.17212656X-RAY DIFFRACTION91.87

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