1EXT Signalling Protein date Jul 03, 1996
title Extracellular Domain Of The 55kda Tumor Necrosis Factor Receptor. Crystallized At Ph3.7 In P 21 21 21.
authors J.H.Naismith, S.R.Sprang
compound source
Molecule: Tumor Necrosis Factor Receptor
Chain: A, B
Fragment: Extracellular Domain
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Other_details: The Construct Contains Residues 12 To 172 Of The Mature Sequence Of The Entire Receptor. Residue 11 Is Mutated To Met As A Result Of The Expression System
symmetry Space Group: P 21 21 21
R_factor 0.203 R_Free 0.243
length a length b length c angle alpha angle beta angle gamma
78.810 83.060 67.900 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.85 Å
ligand MG, SO4 enzyme
note 1EXT is a representative structure
related structures by homologous chain: 1NCF
A, B

Primary referenceStructures of the extracellular domain of the type I tumor necrosis factor receptor., Naismith JH, Devine TQ, Kohno T, Sprang SR, Structure 1996 Nov 15;4(11):1251-62. PMID:8939750
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (64 Kb) [Save to disk]
  • Biological Unit Coordinates (1ext.pdb1.gz) 60 Kb
  • LPC: Ligand-Protein Contacts for 1EXT
  • CSU: Contacts of Structural Units for 1EXT
  • Likely Quarternary Molecular Structure file(s) for 1EXT
  • Structure Factors (275 Kb)
  • Retrieve 1EXT in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1EXT from S2C, [Save to disk]
  • Re-refined 1ext structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1EXT 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 1EXT
  • 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 1EXT, from MSDmotif at EBI
  • Genome occurence of 1EXT's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1exta3, region A:116-172 [Jmol] [rasmolscript] [script source]
        - Domain d1exta1, region A:13-71 [Jmol] [rasmolscript] [script source]
        - Domain d1exta2, region A:72-115 [Jmol] [rasmolscript] [script source]
        - Domain d1extb1, region B:11-71 [Jmol] [rasmolscript] [script source]
        - Domain d1extb3, region B:116-168 [Jmol] [rasmolscript] [script source]
        - Domain d1extb2, region B:72-115 [Jmol] [rasmolscript] [script source]
  • Fold representative 1ext 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: [1ext_B] [1ext] [1ext_A]
  • SWISS-PROT database: [P19438]
  • Domain organization of [TNR1A_HUMAN] by SWISSPFAM
  • Domain found in 1EXT: [TNFR ] by SMART
  • Other resources with information on 1EXT
  • Community annotation for 1EXT 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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