3CDG	Immune System	date	Feb 26, 2008
title	Human Cd94nkg2a In Complex With Hla-E
authors	E.J.Petrie, C.S.Clements, J.Lin, L.C.Sullivan, D.Johnson, T.Huyto A.Heroux, H.L.Hoare, T.Beddoe, H.H.Reid, M.C.J.Wilce, A.G.Brooks J.Rossjohn
compound		source
Molecule: Hla Class I Histocompatibility Antigen, Alpha Cha Chain: A, C Fragment: Residues In Database 23-295 Synonym: Mhc Class I Antigen E Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Hla-E, Hla-6.2, Hlae Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30
Molecule: Beta-2-Microglobulin Chain: B, D Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30
Molecule: Natural Killer Cells Antigen Cd94 Chain: J, E Fragment: Residues In Database 57-179 Synonym: Nk Cell Receptor, Killer Cell Lectin-Like Receptor D Member 1, Kp43; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Klrd1, Cd94 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30
Molecule: Nkg2-Ankg2-B Type II Integral Membrane Protein Chain: K, F Fragment: Residues In Database 113-232 Synonym: Nkg2-Ab-Activating Nk Receptor, Nk Cell Receptor Antigen; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Klrc1, Nkg2a Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30
Molecule: Leader Peptide Of Hla Class I Histocompatibility Alpha Chain G; Chain: P, Q Synonym: Hla G Antigen Engineered: Yes		Synthetic: Yes Other_details: Synthetic Peptide Of The Human Hla-G Leader
symmetry	Space Group: I 41 3 2	R_factor 0.249 R_Free 0.279
crystal cell	length a length b length c angle alpha angle beta angle gamma 345.201 345.201 345.201 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	3.40 Å
Gene Ontology	Chain Function Process Component D, B cellular response to iron io...
Primary reference	CD94-NKG2A recognition of human leukocyte antigen (HLA)-E bound to an HLA class I leader sequence., Petrie EJ, Clements CS, Lin J, Sullivan LC, Johnson D, Huyton T, Heroux A, Hoare HL, Beddoe T, Reid HH, Wilce MC, Brooks AG, Rossjohn J, J Exp Med. 2008 Mar 17;205(3):725-35. Epub 2008 Mar 10. PMID:18332182

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (214 Kb) [Save to disk] Biological Unit Coordinates (3cdg.pdb1.gz) 105 Kb Biological Unit Coordinates (3cdg.pdb2.gz) 105 Kb CSU: Contacts of Structural Units for 3CDG Likely Quarternary Molecular Structure file(s) for 3CDG Structure Factors (445 Kb) Retrieve 3CDG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3CDG from S2C, [Save to disk] Re-refined 3cdg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3CDG 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 3CDG

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 3CDG, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3cdg_Q] [3cdg_D] [3cdg_F] [3cdg_E] [3cdg_K] [3cdg_C] [3cdg_P] [3cdg_B] [3cdg_A] [3cdg_J] [3cdg] SWISS-PROT database: [P61769] [P13747] [P17693] [Q13241] [P26715] Domain organization of [B2MG_HUMAN] [HLAE_HUMAN] [HLAG_HUMAN] [KLRD1_HUMAN] [NKG2A_HUMAN] by SWISSPFAM Domains found in 3CDG: [CLECT] [IGc1 ] by SMART

Other resources with information on 3CDG

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

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