1A79 Endonuclease date Mar 23, 1998
title Crystal Structure Of The Trna Splicing Endonuclease From Met Jannaschii
authors H.Li, C.R.Trotta, J.N.Abelson
compound source
Molecule: Trna Endonuclease
Chain: A, B, C, D
Engineered: Yes
Organism_scientific: Methanocaldococcus Jannaschii
Organism_taxid: 2190
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21
Expression_system_variant: Blr (De3)
Expression_system_vector: Pet11a
symmetry Space Group: P 21 21 21
R_factor 0.200 R_Free 0.267
crystal
cell
length a length b length c angle alpha angle beta angle gamma
61.950 80.040 193.590 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.28 Å
ligand AU, SO4 enzyme
note 1A79 is a representative structure
Gene
Ontology
ChainFunctionProcessComponent
A, D, C, B
  • tRNA-intron endonuclease act...
  • nuclease activity


  • Primary referenceCrystal structure and evolution of a transfer RNA splicing enzyme., Li H, Trotta CR, Abelson J, Science 1998 Apr 10;280(5361):279-84. PMID:9535656
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (117 Kb) [Save to disk]
  • Biological Unit Coordinates (1a79.pdb1.gz) 113 Kb
  • LPC: Ligand-Protein Contacts for 1A79
  • CSU: Contacts of Structural Units for 1A79
  • Likely Quarternary Molecular Structure file(s) for 1A79
  • Retrieve 1A79 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1A79 from S2C, [Save to disk]
  • View 1A79 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 1A79
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1A79, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1a79a1, region A:83-179 [Jmol] [rasmolscript] [script source]
        - Domain d1a79a2, region A:9-82 [Jmol] [rasmolscript] [script source]
        - Domain d1a79b1, region B:83-179 [Jmol] [rasmolscript] [script source]
        - Domain d1a79b2, region B:9-82 [Jmol] [rasmolscript] [script source]
        - Domain d1a79c1, region C:83-179 [Jmol] [rasmolscript] [script source]
        - Domain d1a79c2, region C:9-82 [Jmol] [rasmolscript] [script source]
        - Domain d1a79d1, region D:83-179 [Jmol] [rasmolscript] [script source]
        - Domain d1a79d2, region D:9-82 [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: [1a79_D] [1a79] [1a79_A] [1a79_C] [1a79_B]
  • SWISS-PROT database: [Q58819]
  • Domain organization of [ENDA_METJA] by SWISSPFAM
  • Other resources with information on 1A79
  • Community annotation for 1A79 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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