1KTK Immune System date Jan 16, 2002
title Complex Of Streptococcal Pyrogenic Enterotoxin C (Spec) With A Human T Cell Receptor Beta Chain (Vbeta2.1)
authors E.J.Sundberg, H.Li, A.S.Llera, J.K.Mccormick, J.Tormo, K.Karjalainen, P.M.Schlievert, R.A.Mariuzza
compound source
Molecule: Exotoxin Type C
Chain: A, B, C, D
Synonym: Pyrogenic Exotoxin C; Spe C; Spec
Engineered: Yes
Mutation: Yes
 Organism_scientific: Streptococcus Pyogenes
Organism_taxid: 1314
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: T-Cell Receptor Beta Chain
Chain: E, F
Synonym: Tcr Beta Chain
Engineered: Yes
Mutation: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 1 21 1
R_factor 0.326 R_Free 0.334
crystal
cell
length a length b length c angle alpha angle beta angle gamma
57.378 146.764 135.690 90.00 98.61 90.00
method X-Ray Diffractionresolution 3.00 Å
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • toxin activity


    • Primary referenceStructures of two streptococcal superantigens bound to TCR beta chains reveal diversity in the architecture of T cell signaling complexes., Sundberg EJ, Li H, Llera AS, McCormick JK, Tormo J, Schlievert PM, Karjalainen K, Mariuzza RA, Structure (Camb) 2002 May;10(5):687-99. PMID:12015151
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (202 Kb) [Save to disk]
  • Biological Unit Coordinates (1ktk.pdb1.gz) 193 Kb
  • CSU: Contacts of Structural Units for 1KTK
  • Likely Quarternary Molecular Structure file(s) for 1KTK
  • Structure Factors (612 Kb)
  • Retrieve 1KTK in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KTK from S2C, [Save to disk]
  • Re-refined 1ktk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1KTK 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 1KTK
  • 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
  • 3D motif for 1KTK, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1ktka1, region A:3-95 [Jmol] [rasmolscript] [script source]
        - Domain d1ktka2, region A:96-208 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkb1, region B:3-95 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkb2, region B:96-207 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkc1, region C:1-95 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkc2, region C:96-208 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkd1, region D:3-95 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkd2, region D:96-208 [Jmol] [rasmolscript] [script source]
        - Domain d1ktke1, region E:1-118 [Jmol] [rasmolscript] [script source]
        - Domain d1ktke2, region E:119-246 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkf2, region F:124-240 [Jmol] [rasmolscript] [script source]
        - Domain d1ktkf1, region F:4-116 [Jmol] [rasmolscript] [script source]
  • 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: [1ktk_C] [1ktk_E] [1ktk] [1ktk_B] [1ktk_A] [1ktk_D] [1ktk_F]
  • SWISS-PROT database: [Q8NKX2] [P01850]
  • Domain organization of [SPEC_STRP8] [TCB_HUMAN] by SWISSPFAM
  • Domains found in 1KTK: [IG_like] [IGc1 ] by SMART
    • Other resources with information on 1KTK
  • Community annotation for 1KTK 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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