4NQC	Immune System	date	Nov 25, 2013
title	Crystal Structure Of Tcr-Mr1 Ternary Complex And Covalently (2-Oxopropylideneamino)-6-D-Ribitylaminouracil
authors	R.W.Birkinshaw, J.Rossjohn
compound		source
Molecule: Major Histocompatibility Complex Class I-Related Protein; Chain: A, C Synonym: Mhc Class I-Related Gene Protein, Class I Histocom Antigen-Like Protein; Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Mr1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
Molecule: Beta-2-Microglobulin Chain: B, F Synonym: Beta-2-Microglobulin Form Pi 5.3 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: B2m, Beta 2 Microglobulin, Cdabp0092, Hdcma22p Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
Molecule: Tcr Alpha Chain Chain: D, G Engineered: Yes		Organism_scientific: Homo Sapiens Organism_taxid: 9606 Gene: Tcr-Alpha Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
Molecule: Tcr Beta Chain Chain: E, H Engineered: Yes		Organism_scientific: Homo Sapiens Organism_taxid: 9606 Gene: Tcr-Beta Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid
symmetry	Space Group: C 1 2 1	R_factor 0.165 R_Free 0.216
crystal cell	length a length b length c angle alpha angle beta angle gamma 218.760 71.110 144.280 90.00 104.87 90.00
method	X-Ray Diffraction	resolution	2.50 Å
ligand	2LJ, NA	enzyme
Gene Ontology	Chain Function Process Component F, B cellular response to iron io...
Primary reference	T-cell activation by transitory neo-antigens derived from distinct microbial pathways., Corbett AJ, Eckle SB, Birkinshaw RW, Liu L, Patel O, Mahony J, Chen Z, Reantragoon R, Meehan B, Cao H, Williamson NA, Strugnell RA, Van Sinderen D, Mak JY, Fairlie DP, Kjer-Nielsen L, Rossjohn J, McCluskey J, Nature. 2014 Apr 2. doi: 10.1038/nature13160. PMID:24695216

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (551 Kb) [Save to disk] Biological Unit Coordinates (4nqc.pdb1.gz) 130 Kb Biological Unit Coordinates (4nqc.pdb2.gz) 132 Kb Biological Unit Coordinates (4nqc.pdb3.gz) 144 Kb Biological Unit Coordinates (4nqc.pdb4.gz) 153 Kb LPC: Ligand-Protein Contacts for 4NQC CSU: Contacts of Structural Units for 4NQC Structure Factors (4235 Kb) Retrieve 4NQC in mmCIF format [Save to disk] Re-refined 4nqc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 4NQC 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 4NQC

Cartoon representation from PDB Cartoon 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 Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 4NQC, from MSDmotif at EBI Fold representative 4nqc from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4nqc_H] [4nqc_D] [4nqc_G] [4nqc_B] [4nqc] [4nqc_C] [4nqc_A] [4nqc_E] [4nqc_F] SWISS-PROT database: Domain organization of by SWISSPFAM Domains found in 4NQC: [IG_like] [IGc1] [IGv ] by SMART

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