1LO5 Immune System Toxin date May 06, 2002
title Crystal Structure Of The D227a Variant Of Staphylococcal Enterotoxin A In Complex With Human Mhc Class II
authors K.Petersson, M.Thunnissen, G.Forsberg, B.Walse
compound source
Molecule: Hla Class II Histocompatibility Antigen, Dr Alpha Chain;
Chain: A
Fragment: Extracellular Domain
Synonym: Mhc Class II (Hla-Dr1, Dra 0101)-Chain A
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Plm1

Molecule: Hla Class II Histocompatibility Antigen, Dr-1 Beta Chain;
Chain: B
Fragment: Extracellular Domain
Synonym: Mhc Class II (Hla-Dr1, Drb1 0101)-Chain B
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Plm1

Molecule: Hemagglutinin Peptide
Chain: C
Engineered: Yes

Synthetic: Yes
Other_details: This Sequence Is Peptide From Influenza Virus, Hemagglutinin Peptide;

Molecule: Enterotoxin A
Chain: D
Engineered: Yes
Mutation: Yes

Organism_scientific: Staphylococcus Aureus
Organism_taxid: 1280
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Ul635
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Plr16
Expression_system_gene: K12
symmetry Space Group: P 21 21 21
R_factor 0.245 R_Free 0.339
crystal
cell
length a length b length c angle alpha angle beta angle gamma
52.008 75.792 198.082 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.20 Å
Gene
Ontology
ChainFunctionProcessComponent
A


B


D


Primary referenceCrystal structure of a SEA variant in complex with MHC class II reveals the ability of SEA to crosslink MHC molecules., Petersson K, Thunnissen M, Forsberg G, Walse B, Structure (Camb) 2002 Dec;10(12):1619-26. PMID:12467569
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (101 Kb) [Save to disk]
  • Biological Unit Coordinates (1lo5.pdb1.gz) 96 Kb
  • CSU: Contacts of Structural Units for 1LO5
  • Likely Quarternary Molecular Structure file(s) for 1LO5
  • Structure Factors (129 Kb)
  • Retrieve 1LO5 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1LO5 from S2C, [Save to disk]
  • Re-refined 1lo5 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1LO5 in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1LO5
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1LO5, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1lo5a2, region A:4-81 [Jmol] [rasmolscript] [script source]
        - Domain d1lo5a1, region A:82-182 [Jmol] [rasmolscript] [script source]
        - Domain d1lo5b2, region B:3-92 [Jmol] [rasmolscript] [script source]
        - Domain d1lo5b1, region B:93-190 [Jmol] [rasmolscript] [script source]
        - Domain d1lo5d1, region D:1-120 [Jmol] [rasmolscript] [script source]
        - Domain d1lo5d2, region D:121-233 [Jmol] [rasmolscript] [script source]
  • Fold representative 1lo5 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1lo5] [1lo5_B] [1lo5_D] [1lo5_C] [1lo5_A]
  • SWISS-PROT database: [P04229] [P01903] [P0A0L2]
  • Domain organization of [2B11_HUMAN] [DRA_HUMAN] [ETXA_STAAU] by SWISSPFAM
  • Domains found in 1LO5: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
  • Other resources with information on 1LO5
  • Community annotation for 1LO5 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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