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- PDB-1b9s: NOVEL AROMATIC INHIBITORS OF INFLUENZA VIRUS NEURAMINIDASE MAKE S... -

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Basic information

Entry
Database: PDB / ID: 1b9s
TitleNOVEL AROMATIC INHIBITORS OF INFLUENZA VIRUS NEURAMINIDASE MAKE SELECTIVE INTERACTIONS WITH CONSERVED RESIDUES AND WATER MOLECULES IN THE ACTIVE SITE
ComponentsPROTEIN (NEURAMINIDASE)
KeywordsHYDROLASE / NEURAMINIDASE / SIALIDASE / INFLUENZA
Function / homology
Function and homology information


exo-alpha-sialidase / exo-alpha-sialidase activity / viral budding from plasma membrane / carbohydrate metabolic process / host cell plasma membrane / virion membrane / metal ion binding / membrane
Similarity search - Function
Glycoside hydrolase, family 34 / Neuraminidase / Neuraminidase - #10 / Sialidase superfamily / 6 Propeller / Neuraminidase / Mainly Beta
Similarity search - Domain/homology
Chem-FDI / Neuraminidase
Similarity search - Component
Biological speciesInfluenza B virus
MethodX-RAY DIFFRACTION / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsFinley, J.B. / Atigadda, V.R. / Duarte, F. / Zhao, J.J. / Brouillette, W.J. / Air, G.M. / Luo, M.
CitationJournal: J.Mol.Biol. / Year: 1999
Title: Novel aromatic inhibitors of influenza virus neuraminidase make selective interactions with conserved residues and water molecules in the active site.
Authors: Finley, J.B. / Atigadda, V.R. / Duarte, F. / Zhao, J.J. / Brouillette, W.J. / Air, G.M. / Luo, M.
History
DepositionFeb 15, 1999Deposition site: BNL / Processing site: RCSB
Revision 1.0Feb 26, 1999Provider: repository / Type: Initial release
Revision 1.1Apr 26, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Derived calculations / Version format compliance
Revision 1.3Jul 29, 2020Group: Data collection / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_site / struct_site_gen
Item: _chem_comp.name / _chem_comp.type ..._chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _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.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr1_symmetry / _pdbx_struct_conn_angle.ptnr2_auth_seq_id / _pdbx_struct_conn_angle.ptnr2_label_asym_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.ptnr3_label_seq_id / _pdbx_struct_conn_angle.ptnr3_symmetry / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr1_symmetry / _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 / _struct_conn.ptnr2_label_seq_id / _struct_conn.ptnr2_symmetry
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Aug 9, 2023Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp / chem_comp_atom ...chem_comp / chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession
Revision 1.5Nov 6, 2024Group: Structure summary / Category: pdbx_entry_details / pdbx_modification_feature

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: PROTEIN (NEURAMINIDASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)44,0545
Polymers43,4601
Non-polymers5944
Water2,162120
1
A: PROTEIN (NEURAMINIDASE)
hetero molecules

A: PROTEIN (NEURAMINIDASE)
hetero molecules

A: PROTEIN (NEURAMINIDASE)
hetero molecules

A: PROTEIN (NEURAMINIDASE)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)176,21620
Polymers173,8414
Non-polymers2,37516
Water724
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
crystal symmetry operation2_655-x+1,-y,z1
crystal symmetry operation3_545-y+1/2,x-1/2,z1
crystal symmetry operation4_555y+1/2,-x+1/2,z1
Buried area20530 Å2
ΔGint-223 kcal/mol
Surface area44140 Å2
MethodPISA, PQS
Unit cell
Length a, b, c (Å)124.251, 124.251, 71.375
Angle α, β, γ (deg.)90.00, 90.00, 90.00
Int Tables number90
Space group name H-MP4212

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Components

#1: Protein PROTEIN (NEURAMINIDASE) / SIALIDASE


Mass: 43460.348 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Influenza B virus (B/Lee/40) / Genus: Influenzavirus B / Cellular location: CELL MEMBRANE / Species: Influenza B virus / Strain: B/Lee/40 / References: UniProt: P03474, exo-alpha-sialidase
#2: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#3: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca
#4: Chemical ChemComp-FDI / 4-(N-ACETYLAMINO)-3-[N-(2-ETHYLBUTANOYLAMINO)]BENZOIC ACID


Mass: 292.330 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C15H20N2O4
#5: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 120 / Source method: isolated from a natural source / Formula: H2O
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: 3.17 Å3/Da / Density % sol: 61.17 %
Crystal growpH: 6.8 / Details: pH 6.8
Crystal grow
*PLUS
Method: vapor diffusion, hanging drop / Details: Sudbeck, E.A., (1997) J. Mol. Biol., 267, 584.
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-IDChemical formulaDetails
110 mg/mlprotein1drop
215 %(w/v)PEG33501reservoir
30.15 M1reservoirNaCl
42 M1reservoirNaNO3
55 mM1reservoirCaCl2
60.1 %(w/v)sodium azide1reservoirpH6.8

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Data collection

DiffractionMean temperature: 295 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RU200 / Wavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: Aug 1, 1998
RadiationMonochromator: GRAPHIC / Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.5→20 Å / Num. obs: 17239 / % possible obs: 86.4 % / Observed criterion σ(I): 2 / Redundancy: 1.72 % / Rsym value: 0.124 / Net I/σ(I): 2.06
Reflection shellResolution: 2.5→2.6 Å / Redundancy: 1.72 % / Mean I/σ(I) obs: 2.06 / Rsym value: 0.42 / % possible all: 86.44
Reflection
*PLUS
Rmerge(I) obs: 0.124
Reflection shell
*PLUS
% possible obs: 69.5 % / Rmerge(I) obs: 0.0042

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Processing

Software
NameVersionClassification
SAINTdata scaling
SAINTdata reduction
X-PLORmodel building
X-PLOR3.85refinement
X-PLORphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: PDB ENTRY 1IVB

1ivb


Resolution: 2.5→8 Å / Cross valid method: THROUGHOUT / σ(F): 2
RfactorNum. reflection% reflectionSelection details
Rfree0.251 --RANDOM
Rwork0.174 ---
obs-17239 76.4 %-
Refinement stepCycle: LAST / Resolution: 2.5→8 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms3040 0 37 120 3197
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.007
X-RAY DIFFRACTIONx_bond_d_na
X-RAY DIFFRACTIONx_bond_d_prot
X-RAY DIFFRACTIONx_angle_d
X-RAY DIFFRACTIONx_angle_d_na
X-RAY DIFFRACTIONx_angle_d_prot
X-RAY DIFFRACTIONx_angle_deg1.345
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d
X-RAY DIFFRACTIONx_improper_angle_d_na
X-RAY DIFFRACTIONx_improper_angle_d_prot
X-RAY DIFFRACTIONx_mcbond_it
X-RAY DIFFRACTIONx_mcangle_it
X-RAY DIFFRACTIONx_scbond_it
X-RAY DIFFRACTIONx_scangle_it
Software
*PLUS
Name: X-PLOR / Version: 3.85 / Classification: refinement
Refinement
*PLUS
Highest resolution: 2.5 Å / Lowest resolution: 8 Å / σ(F): 2 / Rfactor obs: 0.174
Solvent computation
*PLUS
Displacement parameters
*PLUS
LS refinement shell
*PLUS
Rfactor Rfree: 0.345 / Rfactor obs: 0.252

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