1KT2 Immune System date Jan 15, 2002
title Crystal Structure Of Class II Mhc Molecule Iek Bound To Moth Cytochrome C Peptide
authors D.H.Fremont, S.Dai, H.Chiang, F.Crawford, P.Marrack, J.Kappler
compound source
Molecule: H-2 Class II Histocompatibility Antigen, E-D Alph
Chain: A, C
Engineered: Yes
 Organism_scientific: Mus Musculus
Organism_common: House Mouse
Organism_taxid: 10090
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_cell_line: Sf9

Molecule: Fusion Protein Consisting Of Cytochrome C Peptide Rich Linker, And Mhc E-Beta-K;
Chain: B, D
Engineered: Yes
Other_details: Fusion Protein Consists Of Moth Cytochrome C Residues 1-14 (Adliaylkqatk), Glycine Rich Linker, Residues (Ggggslvprgsggggs) And Mouse Mhc E-Beta-K Chain
Organism_scientific: Lonomia Obliqua, Mus Musculus
Organism_common: , House Mouse
Organism_taxid: 304329,10090
Strain: ,
Expression_system: Spodoptera Frugiperda
Expression_system_common: Fall Armyworm
Expression_system_taxid: 7108
Expression_system_cell_line: Sf9
symmetry Space Group: C 1 2 1
R_factor 0.220 R_Free 0.294
crystal
cell
length a length b length c angle alpha angle beta angle gamma
147.790 56.930 115.990 90.00 92.12 90.00
method X-Ray Diffractionresolution 2.80 Å
ligand NAG enzyme
related structures by homologous chain: 1DLH, 1R5W
Gene
Ontology
ChainFunctionProcessComponent
A, C


D, B


Primary referenceStructural basis of cytochrome c presentation by IE(k)., Fremont DH, Dai S, Chiang H, Crawford F, Marrack P, Kappler J, J Exp Med 2002 Apr 15;195(8):1043-52. PMID:11956295
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (141 Kb) [Save to disk]
  • Biological Unit Coordinates (1kt2.pdb1.gz) 69 Kb
  • Biological Unit Coordinates (1kt2.pdb2.gz) 69 Kb
  • LPC: Ligand-Protein Contacts for 1KT2
  • CSU: Contacts of Structural Units for 1KT2
  • Likely Quarternary Molecular Structure file(s) for 1KT2
  • Structure Factors (365 Kb)
  • Retrieve 1KT2 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1KT2 from S2C, [Save to disk]
  • Re-refined 1kt2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1KT2 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 1KT2
  • 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 1KT2, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1kt2a2, region A:1-81 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2a1, region A:82-182 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2b1, region B:121-215 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2b2, region B:2-120 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2c2, region C:1-81 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2c1, region C:82-182 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2d1, region D:121-215 [Jmol] [rasmolscript] [script source]
        - Domain d1kt2d2, region D:2-120 [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: [1kt2_C] [1kt2_B] [1kt2_D] [1kt2_A] [1kt2]
  • SWISS-PROT database: [P01904]
  • Domain organization of [HA21_MOUSE] by SWISSPFAM
  • Domains found in 1KT2: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
    • Other resources with information on 1KT2
  • Community annotation for 1KT2 at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
    • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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