1I81 Structural Genomics date Mar 12, 2001
title Crystal Structure Of A Heptameric Lsm Protein From Methanoba Thermoautotrophicum
authors B.M.Collins, S.J.Harrop, G.D.Kornfeld, I.W.Dawes, P.M.G.Curmi, B.
compound source
Molecule: Putative Snrnp Sm-Like Protein
Chain: A, B, C, D, E, F, G
Engineered: Yes
 Organism_scientific: Methanothermobacter Thermautotrophicus
Organism_taxid: 145262
Gene: Mt0649
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21 (Amersham Pharmacia Biotech)
Expression_system_vector_type: Pgex-4t-2
symmetry Space Group: P 1 21 1
R_factor 0.218 R_Free 0.257
crystal
cell
length a length b length c angle alpha angle beta angle gamma
40.380 71.940 94.670 90.00 93.71 90.00
method X-Ray Diffractionresolution 2.00 Å
related structures by homologous chain: 1I4K, 1LOJ
Gene
Ontology
ChainFunctionProcessComponent
F, A, D, C, G, E, B


Primary referenceCrystal structure of a heptameric Sm-like protein complex from archaea: implications for the structure and evolution of snRNPs., Collins BM, Harrop SJ, Kornfeld GD, Dawes IW, Curmi PM, Mabbutt BC, J Mol Biol 2001 Jun 15;309(4):915-23. PMID:11399068
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (88 Kb) [Save to disk]
  • Biological Unit Coordinates (1i81.pdb1.gz) 84 Kb
  • CSU: Contacts of Structural Units for 1I81
  • Likely Quarternary Molecular Structure file(s) for 1I81
  • Structure Factors (254 Kb)
  • Retrieve 1I81 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1I81 from S2C, [Save to disk]
  • Re-refined 1i81 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1I81 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 1I81
  • 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 1I81, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1i81a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1i81b_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1i81c_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1i81d_, region D [Jmol] [rasmolscript] [script source]
        - Domain d1i81e_, region E [Jmol] [rasmolscript] [script source]
        - Domain d1i81f_, region F [Jmol] [rasmolscript] [script source]
        - Domain d1i81g_, region G [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: [1i81_E] [1i81_F] [1i81_A] [1i81_G] [1i81_B] [1i81_C] [1i81] [1i81_D]
  • SWISS-PROT database: [O26745]
  • Domain organization of [RUXX_METTH] by SWISSPFAM
  • Domain found in 1I81: [Sm ] by SMART
    • Other resources with information on 1I81
  • Community annotation for 1I81 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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