1HQR Immune System date Dec 19, 2000
title Crystal Structure Of A Superantigen Bound To The High- Affinity, Zinc-Dependent Site On Mhc Class II
authors Y.Li, H.Li, N.Dimasi, P.Schlievert, R.Mariuzza
compound source
Molecule: Hla-Dr Alpha Chain
Chain: A
Synonym: Dra0101
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21de3

Molecule: Hla-Dr Beta Chain
Chain: B
Synonym: Drb50101
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Myelin Basic Protein
Chain: C
Synonym: Mbp
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Streptococcal Pyrogenic Exotoxin C
Chain: D
Synonym: Spe-C
Engineered: Yes

Organism_scientific: Streptococcus Pyogenes
Organism_taxid: 1314
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: I 2 2 2
R_factor 0.224 R_Free 0.288
crystal
cell
length a length b length c angle alpha angle beta angle gamma
61.827 111.950 216.617 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.20 Å
ligand ZN enzyme
Gene
Ontology
ChainFunctionProcessComponent
A


B


D
  • toxin activity


  • Primary referenceCrystal structure of a superantigen bound to the high-affinity, zinc-dependent site on MHC class II., Li Y, Li H, Dimasi N, McCormick JK, Martin R, Schuck P, Schlievert PM, Mariuzza RA, Immunity 2001 Jan;14(1):93-104. PMID:11163233
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (92 Kb) [Save to disk]
  • Biological Unit Coordinates (1hqr.pdb1.gz) 86 Kb
  • LPC: Ligand-Protein Contacts for 1HQR
  • CSU: Contacts of Structural Units for 1HQR
  • Likely Quarternary Molecular Structure file(s) for 1HQR
  • Structure Factors (111 Kb)
  • Retrieve 1HQR in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1HQR from S2C, [Save to disk]
  • Re-refined 1hqr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1HQR 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 1HQR
  • 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 1HQR, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1hqra2, region A:3-81 [Jmol] [rasmolscript] [script source]
        - Domain d1hqra1, region A:82-181 [Jmol] [rasmolscript] [script source]
        - Domain d1hqrb2, region B:202-292 [Jmol] [rasmolscript] [script source]
        - Domain d1hqrb1, region B:293-390 [Jmol] [rasmolscript] [script source]
        - Domain d1hqrd1, region D:503-595 [Jmol] [rasmolscript] [script source]
        - Domain d1hqrd2, region D:596-708 [Jmol] [rasmolscript] [script source]
  • Fold representative 1hqr from FSSP and Dali (Families of Structurally Similar Proteins)
  • 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: [1hqr_B] [1hqr_C] [1hqr] [1hqr_D] [1hqr_A]
  • SWISS-PROT database: [P01903] [Q30154] [P02686] [Q8NKX2]
  • Domain organization of [DRA_HUMAN] [DRB5_HUMAN] [MBP_HUMAN] [SPEC_STRP8] by SWISSPFAM
  • Domains found in 1HQR: [IGc1] [MHC_II_alpha] [MHC_II_beta ] by SMART
  • Other resources with information on 1HQR
  • Community annotation for 1HQR 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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