2XNA	Immune System	date	Jul 31, 2010
title	Crystal Structure Of The Complex Between Human T Cell Recept Staphylococcal Enterotoxin
authors	M.Saline, K.E.J.Rodstrom, G.Fischer, V.Y.Orekhov, B.G.Karlsson, K.Lindkvist-Petersson
compound		source
Molecule: T Cell Receptor Alpha Chain C Region Chain: A Fragment: Extracellular Domain, Residues 1-95 Engineered: Yes Mutation: Yes Other_details: Variable Domain Trav27 Fused To Constant Dom		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell: T Lymphocyte Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pgmt7
Molecule: T Cell Receptor Beta-1 Chain C Region Chain: B Fragment: Extracellular Domain, Residues 1-130 Engineered: Yes Mutation: Yes Other_details: Variable Domain Trbv19 Fused To Constant Dom		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Cell: T Lymphocyte Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_plasmid: Pgmt7
Molecule: Enterotoxin H Chain: C Synonym: Seh, Staphylococcal Enterotoxin H Engineered: Yes		Organism_scientific: Staphylococcus Aureus Organism_taxid: 1280 Expression_system: Escherichia Coli Expression_system_taxid: 83333 Expression_system_strain: K-12 Expression_system_variant: Ul635
symmetry	Space Group: C 1 2 1	R_factor 0.223 R_Free 0.261
crystal cell	length a length b length c angle alpha angle beta angle gamma 182.692 49.980 132.834 90.00 131.61 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	GOL, NA	enzyme
Gene Ontology	Chain Function Process Component C toxin activity
Primary reference	The structure of superantigen complexed with TCR and MHC reveals novel insights into superantigenic T cell activation., Saline M, Rodstrom KE, Fischer G, Orekhov VY, Karlsson BG, Lindkvist-Petersson K, Nat Commun. 2010 Nov 16;1:119. PMID:21081917

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (118 Kb) [Save to disk] Biological Unit Coordinates (2xna.pdb1.gz) 111 Kb LPC: Ligand-Protein Contacts for 2XNA CSU: Contacts of Structural Units for 2XNA Structure Factors (2536 Kb) Retrieve 2XNA in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2XNA from S2C, [Save to disk] Re-refined 2xna structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 2XNA

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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 2XNA, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2xna] [2xna_B] [2xna_C] [2xna_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 2XNA: [IG_like] [IGc1] [IGv ] by SMART

Other resources with information on 2XNA

Community annotation for 2XNA at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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