2A83	Immune System	date	Jul 07, 2005
title	Crystal Structure Of Hla-B2705 Complexed With The Glucagon (Gr) Peptide (Residues 412-420)
authors	C.Ruckert, M.T.Fiorillo, B.Loll, R.Moretti, J.Biesiadka, W.Saenge A.Ziegler, R.Sorrentino, B.Uchanska-Ziegler
compound		source
Molecule: Hla Class I Histocompatibility Antigen, B-27 Alph Chain: A Fragment: Extracellular Domain, Residues 25-300 Synonym: Mhc Class I Antigen B27 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-B, Hlab Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phn1
Molecule: Beta-2-Microglobulin Chain: B Fragment: Residues 21-119 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Phn1
Molecule: The Glucagon Receptor (Gr) Peptide Chain: C Fragment: Residues 412-420 Engineered: Yes		Synthetic: Yes Other_details: This Sequence Occurs Naturally In Homo Sapie (Human)
symmetry	Space Group: P 1 21 1	R_factor 0.126 R_Free 0.150
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.982 82.083 65.316 90.00 108.73 90.00
method	X-Ray Diffraction	resolution	1.40 Å
ligand	GOL, NA	enzyme
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	Conformational dimorphism of self-peptides and molecular mimicry in a disease-associated HLA-B27 subtype., Ruckert C, Fiorillo MT, Loll B, Moretti R, Biesiadka J, Saenger W, Ziegler A, Sorrentino R, Uchanska-Ziegler B, J Biol Chem. 2006 Jan 27;281(4):2306-16. Epub 2005 Oct 12. PMID:16221670

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (162 Kb) [Save to disk] Biological Unit Coordinates (2a83.pdb1.gz) 157 Kb LPC: Ligand-Protein Contacts for 2A83 CSU: Contacts of Structural Units for 2A83 Likely Quarternary Molecular Structure file(s) for 2A83 Structure Factors (746 Kb) Retrieve 2A83 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2A83 from S2C, [Save to disk] Re-refined 2a83 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 2A83, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2a83_A] [2a83_B] [2a83_C] [2a83] SWISS-PROT database: [P03989] [P61769] Domain organization of [1B27_HUMAN] [B2MG_HUMAN] by SWISSPFAM Domain found in 2A83: [IGc1 ] by SMART

Other resources with information on 2A83

Community annotation for 2A83 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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