1QO3	Receptor Immune System	date	Nov 01, 1999
title	Complex Between Nk Cell Receptor Ly49a And Its Mhc Class I L 2dd
authors	J.Tormo, R.A.Mariuzza
compound		source
Molecule: Mhc Class I H-2dd Heavy Chain Chain: A Fragment: Extracellular Domain Synonym: H-2 Class I Histocompatibility Antigen, D-D Alpha 2d(D)); Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Strain: Balbc Cell: Most Nucleated Cells Cellular_location: Cell Surface Gene: H-2d Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_cellular_location: Inclusion Body Expression_system_plasmid: Pet3a
Molecule: Beta-2-Microglobulin Chain: B Synonym: B2m Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Strain: C57bl6 Cell: Most Nucleated Cells Cellular_location: Cell Surface Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_cellular_location: Inclusion Body Expression_system_plasmid: Pet21d
Molecule: Ly49a Chain: C, D Fragment: C-Type Lectin-Like Domain Synonym: Nk-Cell Surface Glycoprotein Ye148, T Lymphocyte A1, Ly49-A Antigen, Ly49a; Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: Mouse Organism_taxid: 10090 Strain: C57bl6 Cell: Natural Killer Cells Some T Cells Cellular_location: Cell Surface Expression_system: Escherichia Coli Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_cellular_location: Inclusion Body Expression_system_plasmid: Pet21a
Molecule: Hiv Envelope Glycoprotein 120 Peptide Chain: P Fragment: Residues 318-327 Engineered: Yes Mutation: Yes		Synthetic: Yes Organism_scientific: Human Immunodeficiency Virus Organism_common: Hiv Organism_taxid: 12721
symmetry	Space Group: P 21 21 21	R_factor 0.198 R_Free 0.238
crystal cell	length a length b length c angle alpha angle beta angle gamma 78.963 96.957 99.318 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	EDO	enzyme
related structures	by homologous chain: 1A1M, 1XR8
Gene Ontology	Chain Function Process Component B
Primary reference	Crystal structure of a lectin-like natural killer cell receptor bound to its MHC class I ligand., Tormo J, Natarajan K, Margulies DH, Mariuzza RA, Nature. 1999 Dec 9;402(6762):623-31. PMID:10604468

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (116 Kb) [Save to disk] Biological Unit Coordinates (1qo3.pdb1.gz) 110 Kb Biological Unit Coordinates (1qo3.pdb2.gz) 111 Kb LPC: Ligand-Protein Contacts for 1QO3 CSU: Contacts of Structural Units for 1QO3 Likely Quarternary Molecular Structure file(s) for 1QO3 Retrieve 1QO3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QO3 from S2C, [Save to disk]

View 1QO3 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 1QO3

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1QO3, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qo3a1, region A:182-275 [Jmol] [rasmolscript] [script source]     - Domain d1qo3a2, region A:2-181 [Jmol] [rasmolscript] [script source]     - Domain d1qo3b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1qo3c_, region C [Jmol] [rasmolscript] [script source]     - Domain d1qo3d_, 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: [1qo3_B] [1qo3_P] [1qo3_C] [1qo3] [1qo3_D] [1qo3_A] SWISS-PROT database: [P01887] [P04582] [P01900] [P20937] Domain organization of [B2MG_MOUSE] [ENV_HV1B8] [HA12_MOUSE] [KLRA1_MOUSE] by SWISSPFAM Domains found in 1QO3: [CLECT] [IGc1 ] by SMART

Other resources with information on 1QO3

Community annotation for 1QO3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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