1N2R	Immune System	date	Oct 24, 2002
title	A Natural Selected Dimorphism In Hla B44 Alters Self, Peptide Reportoire And T Cell Recognition.
authors	W.A.Macdonald, A.W.Purcell, D.S.Williams, N.Mifsud, L.K.Ely, J.J.Gorman, C.S.Clements, L.Kjer-Nielsen, D.M.Koelle, A.G.Brooks, G.O.Lovrecz, L.Lu, J.Rossjohn, J.Mccluskey
compound		source
Molecule: Hla Class I Histocompatibility Antigen, Bw-44(B- 12) B4403 Alpha Chain; Chain: A Engineered: Yes Other_details: Truncated B4403 Heavy Chain		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-B Or Hlab Expression_system: Escherichia Coli Bl21 Expression_system_taxid: 511693 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet
Molecule: Beta-2-Microglobulin Chain: B Synonym: Hdcma22p 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: Pet
Molecule: Hla Dpa0201 Peptide Chain: C Synonym: 9-Mer Peptide From Major Histocompatibility Complex, Class II, Dr Alpha; Engineered: Yes		Synthetic: Yes Other_details: The Protein Was Chemically Synthesized. The Sequence Of The Protein Is Naturally Found In Homo Sapiens. It Was Derived From The Hla Dpalpha (Dp A0201) Polypeptide Chain.
symmetry	Space Group: P 21 21 21	R_factor 0.229 R_Free 0.261
crystal cell	length a length b length c angle alpha angle beta angle gamma 50.720 82.295 109.550 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	ACY	enzyme
related structures	by homologous chain: 1UXW, 2BNQ
Gene Ontology	Chain Function Process Component B cellular response to iron io...
Primary reference	A naturally selected dimorphism within the HLA-B44 supertype alters class I structure, peptide repertoire, and T cell recognition., Macdonald WA, Purcell AW, Mifsud NA, Ely LK, Williams DS, Chang L, Gorman JJ, Clements CS, Kjer-Nielsen L, Koelle DM, Burrows SR, Tait BD, Holdsworth R, Brooks AG, Lovrecz GO, Lu L, Rossjohn J, McCluskey J, J Exp Med 2003 Sep 1;198(5):679-91. Epub 2003 Aug 25. PMID:12939341

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (78 Kb) [Save to disk] Biological Unit Coordinates (1n2r.pdb1.gz) 75 Kb LPC: Ligand-Protein Contacts for 1N2R CSU: Contacts of Structural Units for 1N2R Likely Quarternary Molecular Structure file(s) for 1N2R Retrieve 1N2R in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1N2R from S2C, [Save to disk]

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Visual 3D analysis of 1N2R

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1N2R, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1n2ra2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1n2ra1, region A:182-276 [Jmol] [rasmolscript] [script source]     - Domain d1n2rb_, region B [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1n2r] [1n2r_C] [1n2r_A] [1n2r_B] SWISS-PROT database: [P61769] Domain organization of [B2MG_HUMAN] by SWISSPFAM Domain found in 1N2R: [IGc1 ] by SMART

Other resources with information on 1N2R

Community annotation for 1N2R at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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