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- PDB-1se4: STAPHYLOCOCCAL ENTEROTOXIN B COMPLEXED WITH LACTOSE -

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Basic information

Entry
Database: PDB / ID: 1se4
TitleSTAPHYLOCOCCAL ENTEROTOXIN B COMPLEXED WITH LACTOSE
ComponentsSTAPHYLOCOCCAL ENTEROTOXIN BEnterotoxin type B
KeywordsTOXIN / SUPERANTIGEN / SEB / 3D STRUCTURE / LACTOSE / COMPLEX
Function / homology
Function and homology information


toxin activity / extracellular region / metal ion binding
Similarity search - Function
Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin signature 1. / Staphylococcal/streptococcal toxin, bacterial / Staphylococcal/Streptococcal toxin, OB-fold / Staphylococcal/Streptococcal toxin, OB-fold domain / Staphylococcal/Streptococcal toxin, beta-grasp domain / Staphylococcal/Streptococcal toxin, beta-grasp domain / Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin, conserved site / Staphyloccocal enterotoxin/Streptococcal pyrogenic exotoxin signature 2. / Superantigen, staphylococcal/streptococcal toxin, bacterial / Ubiquitin-like (UB roll) - #120 ...Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin signature 1. / Staphylococcal/streptococcal toxin, bacterial / Staphylococcal/Streptococcal toxin, OB-fold / Staphylococcal/Streptococcal toxin, OB-fold domain / Staphylococcal/Streptococcal toxin, beta-grasp domain / Staphylococcal/Streptococcal toxin, beta-grasp domain / Staphylococcal enterotoxin/Streptococcal pyrogenic exotoxin, conserved site / Staphyloccocal enterotoxin/Streptococcal pyrogenic exotoxin signature 2. / Superantigen, staphylococcal/streptococcal toxin, bacterial / Ubiquitin-like (UB roll) - #120 / Superantigen toxin, C-terminal / OB fold (Dihydrolipoamide Acetyltransferase, E2P) - #110 / Enterotoxin / Ubiquitin-like (UB roll) / OB fold (Dihydrolipoamide Acetyltransferase, E2P) / Roll / Beta Barrel / Mainly Beta / Alpha Beta
Similarity search - Domain/homology
beta-lactose / Enterotoxin type B
Similarity search - Component
Biological speciesStaphylococcus aureus (bacteria)
MethodX-RAY DIFFRACTION / DIFFERENCE FOURIER / Resolution: 1.9 Å
AuthorsSwaminathan, S. / Sax, M.
Citation
Journal: Nat.Struct.Biol. / Year: 1995
Title: Residues defining V beta specificity in staphylococcal enterotoxins.
Authors: Swaminathan, S. / Furey, W. / Pletcher, J. / Sax, M.
#1: Journal: Nature / Year: 1992
Title: Crystal Structure of Staphylococcal Enterotoxin B, a Superantigen
Authors: Swaminathan, S. / Furey, W. / Pletcher, J. / Sax, M.
History
DepositionApr 16, 1997Processing site: BNL
Revision 1.0Oct 15, 1997Provider: repository / Type: Initial release
Revision 1.1Mar 24, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Non-polymer description / Version format compliance
Revision 2.0Jul 29, 2020Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Derived calculations / Non-polymer description / Structure summary
Category: atom_site / chem_comp ...atom_site / chem_comp / entity / entity_name_com / pdbx_branch_scheme / pdbx_chem_comp_identifier / pdbx_entity_branch / pdbx_entity_branch_descriptor / pdbx_entity_branch_link / pdbx_entity_branch_list / pdbx_entity_nonpoly / pdbx_molecule_features / pdbx_nonpoly_scheme / pdbx_unobs_or_zero_occ_residues / struct_conn / struct_conn_type / struct_site / struct_site_gen
Item: _atom_site.B_iso_or_equiv / _atom_site.Cartn_x ..._atom_site.B_iso_or_equiv / _atom_site.Cartn_x / _atom_site.Cartn_y / _atom_site.Cartn_z / _atom_site.auth_asym_id / _atom_site.auth_atom_id / _atom_site.auth_comp_id / _atom_site.auth_seq_id / _atom_site.label_atom_id / _atom_site.label_comp_id / _chem_comp.formula / _chem_comp.formula_weight / _chem_comp.id / _chem_comp.mon_nstd_flag / _chem_comp.name / _chem_comp.type / _entity.formula_weight / _entity.pdbx_description / _entity.type
Description: Carbohydrate remediation / Provider: repository / Type: Remediation

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: STAPHYLOCOCCAL ENTEROTOXIN B
hetero molecules


Theoretical massNumber of molelcules
Total (without water)28,7532
Polymers28,4111
Non-polymers3421
Water2,216123
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Unit cell
Length a, b, c (Å)45.300, 71.000, 78.300
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 STAPHYLOCOCCAL ENTEROTOXIN B / Enterotoxin type B / SEB


Mass: 28411.064 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: COMPLEXED WITH LACTOSE / Source: (gene. exp.) Staphylococcus aureus (bacteria) / Cell line: S2 / Production host: Staphylococcus aureus (bacteria) / References: UniProt: P01552
#2: Polysaccharide beta-D-galactopyranose-(1-4)-beta-D-glucopyranose / beta-lactose


Type: oligosaccharide, Oligosaccharide / Class: Nutrient / Mass: 342.297 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: oligosaccharide / References: beta-lactose
DescriptorTypeProgram
DGalpb1-4DGlcpb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/2,2,1/[a2122h-1b_1-5][a2112h-1b_1-5]/1-2/a4-b1WURCSPDB2Glycan 1.1.0
[][b-D-Glcp]{[(4+1)][b-D-Galp]{}}LINUCSPDB-CARE
#3: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 123 / 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: 2

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Sample preparation

CrystalDensity Matthews: 2.3 Å3/Da / Density % sol: 46 %
Crystal growpH: 8.8
Details: CRYSTALLIZED FROM 24% PEG 4000, 20 MM BORATE BUFFER AT PH 8.8 IN THE PRESENCE OF 100MM LACTOSE

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Data collection

DiffractionMean temperature: 291 K
Diffraction sourceSource: ROTATING ANODE / Type: RIGAKU RUH2R / Wavelength: 1.5418
DetectorType: SIEMENS-NICOLET X100 / Detector: AREA DETECTOR / Date: Jul 1, 1993 / Details: FRANKS DOUBLE MIRRORS
RadiationMonochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 1.5418 Å / Relative weight: 1
ReflectionResolution: 1.8→40 Å / Num. obs: 17211 / % possible obs: 80.1 % / Observed criterion σ(I): 2 / Redundancy: 5 % / Rsym value: 0.078

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Processing

Software
NameVersionClassification
XENGENdata collection
FBSCALE(LOCAL VERSION)data reduction
PHASESphasing
X-PLOR3.1model building
X-PLOR3.1refinement
XENGENdata reduction
FBSCALE(LOCAL VERSION)data scaling
X-PLOR3.1phasing
RefinementMethod to determine structure: DIFFERENCE FOURIER / Resolution: 1.9→10 Å / σ(F): 0
RfactorNum. reflection% reflection
Rwork0.22 --
obs0.22 16679 80.4 %
Refinement stepCycle: LAST / Resolution: 1.9→10 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms1975 0 23 123 2121
Refine LS restraints
Refine-IDTypeDev ideal
X-RAY DIFFRACTIONx_bond_d0.013
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_deg2.088
X-RAY DIFFRACTIONx_angle_deg_na
X-RAY DIFFRACTIONx_angle_deg_prot
X-RAY DIFFRACTIONx_dihedral_angle_d25.3
X-RAY DIFFRACTIONx_dihedral_angle_d_na
X-RAY DIFFRACTIONx_dihedral_angle_d_prot
X-RAY DIFFRACTIONx_improper_angle_d1.47
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
Xplor file
Refine-IDSerial noParam fileTopol file
X-RAY DIFFRACTION1PARHCXDX.PROPHCXDX.PRO
X-RAY DIFFRACTION2PARAM3_MOD.CHOPH3.CHO
X-RAY DIFFRACTION3PARAM11.WATPH11.WAT

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