1KPR	Immune System	date	Jan 02, 2002
title	The Human Non-Classical Major Histocompatibility Complex Mol E
authors	M.A.Holmes, R.K.Strong
compound		source
Molecule: Hla Class I Histocompatibility Antigen, Alpha Cha Chain: A, C Synonym: Hla-E Heavy Chain; Major Histocompatibility Comple I, E; Hla-E Class I Protein; Alpha Chain Of Mhc Complex Cla Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-E Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Ubs
Molecule: Beta-2-Microglobulin Chain: B, D Synonym: Beta 2-Microglobulin; Beta Chain Of Mhc Complex Cl Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Xa90
Molecule: Peptide Vmaprtvll Chain: P, Q Engineered: Yes		Synthetic: Yes
symmetry	Space Group: P 31 2 1	R_factor 0.235 R_Free 0.289
crystal cell	length a length b length c angle alpha angle beta angle gamma 178.700 178.700 88.200 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	SO4	enzyme
related structures	by homologous chain: 1DE4, 1I7T, 1QSE
Gene Ontology	Chain Function Process Component D, B cellular response to iron io...
Primary reference	HLA-E allelic variants. Correlating differential expression, peptide affinities, crystal structures, and thermal stabilities., Strong RK, Holmes MA, Li P, Braun L, Lee N, Geraghty DE, J Biol Chem 2003 Feb 14;278(7):5082-90. Epub 2002 Oct 30. PMID:12411439

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (121 Kb) [Save to disk] Biological Unit Coordinates (1kpr.pdb1.gz) 59 Kb Biological Unit Coordinates (1kpr.pdb2.gz) 58 Kb Biological Unit Coordinates (1kpr.pdb3.gz) 227 Kb Biological Unit Coordinates (1kpr.pdb4.gz) 114 Kb LPC: Ligand-Protein Contacts for 1KPR CSU: Contacts of Structural Units for 1KPR Likely Quarternary Molecular Structure file(s) for 1KPR Retrieve 1KPR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1KPR from S2C, [Save to disk]

View 1KPR 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 1KPR

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1KPR, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1kpra2, region A:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1kpra1, region A:182-274 [Jmol] [rasmolscript] [script source]     - Domain d1kprb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1kprc2, region C:1-181 [Jmol] [rasmolscript] [script source]     - Domain d1kprc1, region C:182-274 [Jmol] [rasmolscript] [script source]     - Domain d1kprd_, region D [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: [1kpr_A] [1kpr_D] [1kpr_C] [1kpr] [1kpr_Q] [1kpr_P] [1kpr_B] SWISS-PROT database: [P61769] [P13747] Domain organization of [B2MG_HUMAN] [HLAE_HUMAN] by SWISSPFAM Domain found in 1KPR: [IGc1 ] by SMART

Other resources with information on 1KPR

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

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