1KLU Immune System Toxin date Dec 12, 2001
title Crystal Structure Of Hla-Dr1tpi(23-37) Complexed With Staphylococcal Enterotoxin C3 Variant 3b2 (Sec3-3b2)
authors E.J.Sundberg, M.W.Sawicki, P.S.Andersen, J.Sidney, A.Sette, R.A.Mariuzza
compound source
Molecule: Hla Class II Histocompatibility Antigen, Dr Alpha Chain;
Chain: A
Fragment: Residues 29-207
Synonym: Hla-Dr1 Alpha Subunit; Hla-Dr Antigen Alpha Chain
Engineered: Yes
 Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Hla Class II Histocompatibility Antigen, Dr-1 Beta Chain;
Chain: B
Fragment: Residues 30-219
Synonym: Hla-Dr1 Beta Subunit; Hla-Dr Beta 1 Chain
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Triosephosphate Isomerase Peptide
Chain: C
Fragment: Residues 23-37
Engineered: Yes
Synthetic: Yes
Other_details: Peptide Synthesis

Molecule: Enterotoxin Type C-3
Chain: D
Fragment: Residues 29-266
Synonym: Enterotoxin C3; Sec3
Engineered: Yes
Organism_scientific: Staphylococcus Aureus
Organism_taxid: 1280
Variant: 3b2
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: H 3
R_factor 0.208 R_Free 0.220
crystal
cell
length a length b length c angle alpha angle beta angle gamma
171.296 171.296 121.024 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.93 Å
related structures by homologous chain: 1D5Z, 1FV1, 1SE4, 1UNS
Gene
Ontology
ChainFunctionProcessComponent
D
  • pathogenesis
  • extracellular region
    • Primary referenceMinor structural changes in a mutated human melanoma antigen correspond to dramatically enhanced stimulation of a CD4+ tumor-infiltrating lymphocyte line., Sundberg EJ, Sawicki MW, Southwood S, Andersen PS, Sette A, Mariuzza RA, J Mol Biol 2002 May 31;319(2):449-61. PMID:12051920
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (115 Kb) [Save to disk]
  • Biological Unit Coordinates (1klu.pdb1.gz) 111 Kb
  • CSU: Contacts of Structural Units for 1KLU
  • Likely Quarternary Molecular Structure file(s) for 1KLU
  • Structure Factors (1301 Kb)
  • Retrieve 1KLU in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KLU from S2C, [Save to disk]
  • Re-refined 1klu structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1KLU 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.
  • On AstexViewer, from MSD-EBI (viewer documentation).
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    • Visual 3D analysis of 1KLU
  • 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 1KLU, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1klua2, region A:4-81 [Jmol] [rasmolscript] [script source]
        - Domain d1klua1, region A:82-182 [Jmol] [rasmolscript] [script source]
        - Domain d1klub2, region B:1-92 [Jmol] [rasmolscript] [script source]
        - Domain d1klub1, region B:93-190 [Jmol] [rasmolscript] [script source]
        - Domain d1klud1, region D:1-121 [Jmol] [rasmolscript] [script source]
        - Domain d1klud2, region D:122-239 [Jmol] [rasmolscript] [script source]
  • Fold representative 1klu 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: [1klu_A] [1klu_B] [1klu_C] [1klu_D]
  • SWISS-PROT database: [P04229] [P01903] [P0A0L5]
  • Domain organization of [2B11_HUMAN] [DRA_HUMAN] [ENTC3_STAAU] by SWISSPFAM
  • Domains found in 1KLU: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
  • Alignments of the sequence of 1KLU with the sequences similar proteins can be viewed for 1KLU's classification [2B11_HUMAN] [DRA_HUMAN] [ENTC3_STAAU] at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list.
  • A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification [2B11_HUMAN] [DRA_HUMAN] [ENTC3_STAAU] at ProtoMap. Click on the Cluster number.
    • Other resources with information on 1KLU
  • Community annotation for 1KLU at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
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