3B3I	Immune System	date	Oct 22, 2007
title	Citrullination-Dependent Differential Presentation Of A Self By Hla-B27 Subtypes
authors	A.Beltrami, M.Rossmann, M.T.Fiorillo, F.Paladini, R.Sorrentino, W P.Kumar, A.Ziegler, B.Uchanska-Ziegler
compound		source
Molecule: Hla Class I Histocompatibility Antigen, B-27 Alph Chain: A Fragment: Extracelluar 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 Expression_system_taxid: 562
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 Expression_system_taxid: 562
Molecule: Vasoactive Intestinal Polypeptide Receptor 1 Chain: C Fragment: Residues 400-408 Synonym: Vip-R-1, Pituitary Adenylate Cyclase-Activating Po Type II Receptor, Pacap Type II Receptor, Pacap-R-2; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Vipr1 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.189 R_Free 0.233
crystal cell	length a length b length c angle alpha angle beta angle gamma 51.343 82.303 109.279 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.86 Å
ligand	CIR, GOL	enzyme
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	Citrullination-dependent Differential Presentation of a Self-peptide by HLA-B27 Subtypes., Beltrami A, Rossmann M, Fiorillo MT, Paladini F, Sorrentino R, Saenger W, Kumar P, Ziegler A, Uchanska-Ziegler B, J Biol Chem. 2008 Oct 3;283(40):27189-27199. Epub 2008 Jul 23. PMID:18650441

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (78 Kb) [Save to disk] Biological Unit Coordinates (3b3i.pdb1.gz) 73 Kb LPC: Ligand-Protein Contacts for 3B3I CSU: Contacts of Structural Units for 3B3I Likely Quarternary Molecular Structure file(s) for 3B3I Structure Factors (641 Kb) Retrieve 3B3I in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3B3I from S2C, [Save to disk] Re-refined 3b3i structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3B3I in 3D

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Visual 3D analysis of 3B3I

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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 3B3I, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3b3i] [3b3i_C] [3b3i_A] [3b3i_B] SWISS-PROT database: [P03989] [P61769] [P32241] Belongs to the g-protein-coupled receptor (gpcr) family according to TCDB. Domain organization of [1B27_HUMAN] [B2MG_HUMAN] [VIPR1_HUMAN] by SWISSPFAM Domain found in 3B3I: [IGc1 ] by SMART

Other resources with information on 3B3I

Community annotation for 3B3I at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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