2NTT Toxin date Nov 08, 2006
title Crystal Structure Of Sek
authors S.Gunther, A.K.Varma, B.Moza, E.J.Sundberg
compound source
Molecule: Staphylococcal Enterotoxin K
Chain: A, B
Engineered: Yes
Organism_scientific: Staphylococcus Aureus Subsp. Aureus
Organism_taxid: 93062
Strain: Col
Gene: Sek
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Rosetta (De3)
Expression_system_vector_type: Plasmid
symmetry Space Group: P 1 21 1
R_factor 0.163 R_Free 0.202
crystal
cell
length a length b length c angle alpha angle beta angle gamma
53.774 45.790 90.696 90.00 90.02 90.00
method X-Ray Diffractionresolution 1.56 Å
ligand CL, EDO enzyme
Gene
Ontology
ChainFunctionProcessComponent
A, B


Primary referenceA Novel Loop Domain in Superantigens Extends their T Cell Receptor Recognition Site., Gunther S, Varma AK, Moza B, Kasper KJ, Wyatt AW, Zhu P, Rahman AK, Li Y, Mariuzza RA, McCormick JK, Sundberg EJ, J Mol Biol. 2007 May 18;. PMID:17560605
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (168 Kb) [Save to disk]
  • Biological Unit Coordinates (2ntt.pdb1.gz) 163 Kb
  • LPC: Ligand-Protein Contacts for 2NTT
  • CSU: Contacts of Structural Units for 2NTT
  • Likely Quarternary Molecular Structure file(s) for 2NTT
  • Structure Factors (463 Kb)
  • Retrieve 2NTT in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2NTT from S2C, [Save to disk]
  • Re-refined 2ntt structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2NTT 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 2NTT
  • 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 2NTT, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2ntt] [2ntt_B] [2ntt_A]
  • SWISS-PROT database: [Q93CC5]
  • Domain organization of [Q93CC5_STAAU] by SWISSPFAM
  • Other resources with information on 2NTT
  • Community annotation for 2NTT 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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