2QEJ	Immune System	date	Jun 26, 2007
title	Crystal Structure Of A Staphylococcus Aureus Protein (Ssl7) With Fc Of Human Iga1
authors	P.A.Ramsland, N.Willoughby, H.M.Trist, W.Farrugia, P.M.Hogarth, J.D.Fraser, B.D.Wines
compound		source
Molecule: Ig Alpha-1 C Region Chain: A, B Fragment: Fc Region Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Igha1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Hek293ebna Expression_system_vector_type: Plasmid Expression_system_plasmid: Papex-3p Derivative
Molecule: Superantigen-Like Molecule 7 Chain: C, D Fragment: Set1 Synonym: Ssl7 Engineered: Yes		Organism_scientific: Staphylococcus Aureus Organism_taxid: 1280 Strain: Strain Number 4427 (Gl1 Isolate) Gene: Ssl7 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ad494(De3)Plyss Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet32a-3c
symmetry	Space Group: P 21 21 21	R_factor 0.229 R_Free 0.312
crystal cell	length a length b length c angle alpha angle beta angle gamma 71.306 109.263 170.863 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.20 Å
ligand	CA, GOL, NAG	enzyme
Gene Ontology	Chain Function Process Component D, C
Primary reference	Structural basis for evasion of IgA immunity by Staphylococcus aureus revealed in the complex of SSL7 with Fc of human IgA1., Ramsland PA, Willoughby N, Trist HM, Farrugia W, Hogarth PM, Fraser JD, Wines BD, Proc Natl Acad Sci U S A. 2007 Sep 11;. PMID:17848512

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (125 Kb) [Save to disk] Biological Unit Coordinates (2qej.pdb1.gz) 119 Kb LPC: Ligand-Protein Contacts for 2QEJ CSU: Contacts of Structural Units for 2QEJ Likely Quarternary Molecular Structure file(s) for 2QEJ Structure Factors (299 Kb) Retrieve 2QEJ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2QEJ from S2C, [Save to disk] Re-refined 2qej structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2QEJ 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 2QEJ

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 2QEJ, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2qej_A] [2qej_C] [2qej_D] [2qej_B] [2qej] SWISS-PROT database: [P01876] [Q2YVR9] Domain organization of [IGHA1_HUMAN] [Q2YVR9_STAAB] by SWISSPFAM Domain found in 2QEJ: [IGc1 ] by SMART

Other resources with information on 2QEJ

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

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