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- PDB-1dim: SIALIDASE FROM SALMONELLA TYPHIMURIUM COMPLEXED WITH EPANA INHIBITOR -

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Basic information

Entry
Database: PDB / ID: 1dim
TitleSIALIDASE FROM SALMONELLA TYPHIMURIUM COMPLEXED WITH EPANA INHIBITOR
ComponentsSIALIDASENeuraminidase
KeywordsGLYCOSIDASE / HYDROLASE
Function / homology
Function and homology information


ganglioside catabolic process / oligosaccharide catabolic process / exo-alpha-sialidase activity / exo-alpha-(2->3)-sialidase activity / exo-alpha-(2->6)-sialidase activity / exo-alpha-(2->8)-sialidase activity / exo-alpha-sialidase / intracellular membrane-bounded organelle / membrane / cytoplasm
Similarity search - Function
Trypanosome sialidase / BNR repeat-like domain / Sialidase family / Sialidase / Neuraminidase - #10 / Sialidase superfamily / 6 Propeller / Neuraminidase / Mainly Beta
Similarity search - Domain/homology
Chem-EQP / : / Sialidase
Similarity search - Component
Biological speciesSalmonella typhimurium (bacteria)
MethodX-RAY DIFFRACTION / DIFFERENCE MAP / Resolution: 1.6 Å
AuthorsGarman, E.F. / Crennell, S.C. / Vimr, E.R. / Laver, W.G. / Taylor, G.L.
Citation
Journal: J.Mol.Biol. / Year: 1996
Title: The structures of Salmonella typhimurium LT2 neuraminidase and its complexes with three inhibitors at high resolution.
Authors: Crennell, S.J. / Garman, E.F. / Philippon, C. / Vasella, A. / Laver, W.G. / Vimr, E.R. / Taylor, G.L.
#1: Journal: Proc.Natl.Acad.Sci.USA / Year: 1993
Title: Crystal Structure of a Bacterial Sialidase (from Salmonella Typhimurium Lt2) Shows the Same Fold as an Influenza Virus Neuraminidase
Authors: Crennell, S.J. / Garman, E.F. / Laver, W.G. / Vimr, E.R. / Taylor, G.L.
#2: Journal: J.Mol.Biol. / Year: 1992
Title: Purification, Crystallization and Preliminary Crystallographic Study of Neuraminidase from Vibrio Cholerae and Salmonella Typhimurium Lt2
Authors: Taylor, G. / Vimr, E. / Garman, E. / Laver, G.
#3: Journal: Helv.Chim.Acta / Year: 1990
Title: Phosphonic-Acid Analogues of the N-Acetyl-2-Deoxyneuraminic Acids: Synthesis and Inhibition of Vibrio Cholerae Sialidase
Authors: Wallimann, K. / Vasella, A.
History
DepositionApr 23, 1996Processing site: BNL
Revision 1.0Dec 7, 1996Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Source and taxonomy / Version format compliance
Revision 1.3Jul 29, 2020Group: Database references / Derived calculations / Structure summary
Category: chem_comp / entity ...chem_comp / entity / pdbx_entity_nonpoly / pdbx_struct_conn_angle / struct_conn / struct_ref_seq_dif / 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.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.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.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_ref_seq_dif.details
Description: Carbohydrate remediation / Provider: repository / Type: Remediation
Revision 1.4Aug 9, 2023Group: Database references / Refinement description / Structure summary
Category: chem_comp / database_2 / pdbx_initial_refinement_model
Item: _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: SIALIDASE
hetero molecules


Theoretical massNumber of molelcules
Total (without water)42,3603
Polymers41,9921
Non-polymers3682
Water3,945219
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)47.400, 82.300, 91.700
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 SIALIDASE / Neuraminidase


Mass: 41991.789 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Salmonella typhimurium (bacteria) / Strain: LT2 / Description: RESIDUE MET 1 WAS EXCISED BY ESCHERICHIA COLI / Gene: NANH / Variant: TA263, PROTOTROPH / Plasmid: PSX62 / Gene (production host): NANH / Production host: Escherichia coli (E. coli) / References: UniProt: P29768, exo-alpha-sialidase
#2: Chemical ChemComp-K / POTASSIUM ION


Mass: 39.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: K
#3: Sugar ChemComp-EQP / (1R)-4-acetamido-1,5-anhydro-2,4-dideoxy-1-phosphono-D-glycero-D-galacto-octitol / (4-ACETAMIDO-2,4-DIDEOXY-D-GLYCERO-ALPHA-D-GALACTO-1-OCTOPYRANOSYL)PHOSPHONIC ACID


Type: D-saccharide / Mass: 329.241 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H20NO9P
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 219 / 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: 2.13 Å3/Da / Density % sol: 42 %
Crystal grow
*PLUS
pH: 7.2 / Method: vapor diffusion, hanging drop
Components of the solutions
*PLUS
IDConc.Common nameCrystal-IDSol-ID
110-15 mg/mlneuraminidase1drop
21.9 Mpotassium phosphate1drop
32.1 Mpotassium phosphate1reservoir

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Data collection

DiffractionMean temperature: 289 K
Diffraction sourceWavelength: 1.5418
DetectorType: SIEMENS / Detector: AREA DETECTOR / Date: Dec 5, 1992
RadiationMonochromator: GRAPHITE(002) / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 2.4→10 Å / Num. obs: 12091 / % possible obs: 89.6 % / Redundancy: 3.3 % / Rmerge(I) obs: 0.054 / Net I/σ(I): 14.8
Reflection shellResolution: 1.6→1.66 Å / Redundancy: 2.7 % / Rmerge(I) obs: 0.078 / Mean I/σ(I) obs: 6.8 / % possible all: 87.8
Reflection
*PLUS
Lowest resolution: 9999 Å / Num. obs: 43572 / Num. measured all: 189373
Reflection shell
*PLUS
Lowest resolution: 1.7 Å

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Processing

Software
NameVersionClassification
XDSdata scaling
XSCALEdata scaling
X-PLOR3.1model building
X-PLOR3.1refinement
XDSdata reduction
X-PLOR3.1phasing
RefinementMethod to determine structure: DIFFERENCE MAP
Starting model: PDB ENTRY 2SIM

2sim


Resolution: 1.6→6 Å / σ(F): 0 /
RfactorNum. reflection
Rwork0.18 -
obs0.18 42613
Displacement parametersBiso mean: 14.42 Å2
Refinement stepCycle: LAST / Resolution: 1.6→6 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2954 0 22 219 3195
Refine LS restraints
Refine-IDTypeDev idealDev ideal target
X-RAY DIFFRACTIONx_bond_d0.009
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_deg1.79
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_it1.5
X-RAY DIFFRACTIONx_mcangle_it2
X-RAY DIFFRACTIONx_scbond_it2
X-RAY DIFFRACTIONx_scangle_it2.5
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1STNA_EPANA.PARSTNA_EPANA.TOP
X-RAY DIFFRACTION2
Software
*PLUS
Name: X-PLOR / Classification: refinement
Refinement
*PLUS
Solvent computation
*PLUS
Displacement parameters
*PLUS

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