1ONQ	Immune System	date	Feb 28, 2003
title	Crystal Structure Of Cd1a In Complex With A Sulfatide
authors	D.M.Zajonc, M.A.Elsliger, L.Teyton, I.A.Wilson
compound		source
Molecule: T-Cell Surface Glycoprotein Cd1a Chain: A, C Synonym: Cd1a Antigen, T-Cell Surface Antigen T6leu-6, Hta Thymocyte Antigen; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Cd1a Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227 Expression_system_strain: Sc2 Cells Expression_system_vector_type: Plasmid Expression_system_plasmid: Prmha3
Molecule: Beta-2-Microglobulin Chain: B, D Synonym: Hdcma22p Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m Expression_system: Drosophila Melanogaster Expression_system_common: Fruit Fly Expression_system_taxid: 7227 Expression_system_strain: Sc2 Cells Expression_system_vector_type: Plasmid Expression_system_plasmid: Prmha3
symmetry	Space Group: P 1 21 1	R_factor 0.227 R_Free 0.276
crystal cell	length a length b length c angle alpha angle beta angle gamma 55.407 42.711 204.217 90.00 90.78 90.00
method	X-Ray Diffraction	resolution	2.15 Å
ligand	FUC, NAG, SLF	enzyme
related structures	by homologous chain: 1GZQ, 1JHT, 1JPF
Gene Ontology	Chain Function Process Component D, B cellular response to iron io...
Primary reference	Crystal structure of CD1a in complex with a sulfatide self antigen at a resolution of 2.15 A., Zajonc DM, Elsliger MA, Teyton L, Wilson IA, Nat Immunol 2003 Aug;4(8):808-15. PMID:12833155

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (142 Kb) [Save to disk] Biological Unit Coordinates (1onq.pdb1.gz) 71 Kb Biological Unit Coordinates (1onq.pdb2.gz) 66 Kb LPC: Ligand-Protein Contacts for 1ONQ CSU: Contacts of Structural Units for 1ONQ Likely Quarternary Molecular Structure file(s) for 1ONQ Structure Factors (352 Kb) Retrieve 1ONQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1ONQ from S2C, [Save to disk] Re-refined 1onq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1ONQ 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 1ONQ

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 1ONQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1onqa1, region A:184-280 [Jmol] [rasmolscript] [script source]     - Domain d1onqa2, region A:7-183 [Jmol] [rasmolscript] [script source]     - Domain d1onqb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1onqc1, region C:184-279 [Jmol] [rasmolscript] [script source]     - Domain d1onqc2, region C:7-183 [Jmol] [rasmolscript] [script source]     - Domain d1onqd_, 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: [1onq_D] [1onq_A] [1onq] [1onq_C] [1onq_B] SWISS-PROT database: [P61769] [P06126] Domain organization of [B2MG_HUMAN] [CD1A_HUMAN] by SWISSPFAM Domain found in 1ONQ: [IGc1 ] by SMART

Other resources with information on 1ONQ

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

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