2PXY	Immune System	date	May 14, 2007
title	Crystal Structures Of Immune Receptor Complexes
authors	D.Feng, C.J.Bond, L.K.Ely, K.C.Garcia
compound		source
Molecule: T Cell Receptor Alpha Chain Chain: A Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pak400
Molecule: T Cell Receptor Beta Chain Chain: B Engineered: Yes Mutation: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pak400
Molecule: H-2 Class II Histocompatibility Antigen, A-U Alpha Chain; Chain: C Fragment: Extracellular Alpha-1, Extracellular Alpha-2 Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227
Molecule: H-2 Class II Histocompatibility Antigen, A-U Beta Chain; Chain: D Fragment: Extracellular Beta-1, Extracellular Beta-2 Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227
Molecule: Myelin Basic Protein (Mbp)-Peptide Chain: P Engineered: Yes Mutation: Yes		Synthetic: Yes Other_details: Synthetic Construct. The Sequence Can Be Naturally Found In Mus Musculus (Mouse)
symmetry	Space Group: P 41 2 2	R_factor 0.218 R_Free 0.253
crystal cell	length a length b length c angle alpha angle beta angle gamma 97.603 97.603 175.561 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.23 Å
Gene Ontology	Chain Function Process Component C D
Primary reference	Structural evidence for a germline-encoded T cell receptor-major histocompatibility complex interaction 'codon'., Feng D, Bond CJ, Ely LK, Maynard J, Garcia KC, Nat Immunol. 2007 Sep;8(9):975-83. Epub 2007 Aug 12. PMID:17694060

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (110 Kb) [Save to disk] Biological Unit Coordinates (2pxy.pdb1.gz) 106 Kb CSU: Contacts of Structural Units for 2PXY Likely Quarternary Molecular Structure file(s) for 2PXY Structure Factors (330 Kb) Retrieve 2PXY in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2PXY from S2C, [Save to disk] Re-refined 2pxy structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2PXY 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 2PXY

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 2PXY, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2pxy_D] [2pxy_C] [2pxy] [2pxy_B] [2pxy_P] [2pxy_A] SWISS-PROT database: [P14438] [P06344] [Q5R1F5] Domain organization of [HA2U_MOUSE] [HB2U_MOUSE] [Q5R1F5_MOUSE] by SWISSPFAM Domains found in 2PXY: [IG] [IGc1] [IGv] [MHC_II_alpha] [MHC_II_beta ] by SMART

Other resources with information on 2PXY

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

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