1QG3 Structural Protein date Apr 19, 1999
title Crystal Structure Of A Tandem Pair Of Fibronectin Type III D From The Cytoplasmic Tail Of Integrin Alpha6 Beta4
authors J.M.De Pereda, G.Wiche, R.C.Liddington
compound source
Molecule: Protein (Integrin Beta-4 Subunit)
Chain: A, B
Fragment: First Tandem Pair Of Fibronectin Type III Domains
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Itgb4
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector: Pet15b
symmetry Space Group: P 43 21 2
R_factor 0.201 R_Free 0.262
length a length b length c angle alpha angle beta angle gamma
59.040 59.040 246.050 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.15 Å
ligand CAC, SO4 enzyme
A, B

Primary referenceCrystal structure of a tandem pair of fibronectin type III domains from the cytoplasmic tail of integrin alpha6beta4., de Pereda JM, Wiche G, Liddington RC, EMBO J 1999 Aug 2;18(15):4087-95. PMID:10428948
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (75 Kb) [Save to disk]
  • Biological Unit Coordinates (1qg3.pdb1.gz) 70 Kb
  • LPC: Ligand-Protein Contacts for 1QG3
  • CSU: Contacts of Structural Units for 1QG3
  • Likely Quarternary Molecular Structure file(s) for 1QG3
  • Structure Factors (165 Kb)
  • Retrieve 1QG3 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1QG3 from S2C, [Save to disk]
  • Re-refined 1qg3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1QG3 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 1QG3
  • 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 1QG3, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1qg3a1, region A:1126-1217 [Jmol] [rasmolscript] [script source]
        - Domain d1qg3a2, region A:1218-1320 [Jmol] [rasmolscript] [script source]
        - Domain d1qg3b1, region B:1127-1217 [Jmol] [rasmolscript] [script source]
        - Domain d1qg3b2, region B:1218-1320 [Jmol] [rasmolscript] [script source]
  • Fold representative 1qg3 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: [1qg3_A] [1qg3] [1qg3_B]
  • SWISS-PROT database: [P16144]
  • Domain organization of [ITB4_HUMAN] by SWISSPFAM
  • Domain found in 1QG3: [FN3 ] by SMART
  • Other resources with information on 1QG3
  • Community annotation for 1QG3 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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