1TW8 HincII bound to Ca2+ and cognate DNA GTCGAC date
authors Etzkorn, C., Horton, N.C.
compound source
R_Free 0.286
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 2.80
ligand CA, NA enzyme
related structures by homologous chain: 1KC6, 1XHU
A, D, C, B
  • nuclease activity
  • endonuclease activity

  • Primary referenceCa2+ binding in the active site of HincII: implications for the catalytic mechanism., Etzkorn C, Horton NC, Biochemistry 2004 Oct 26;43(42):13256-70. PMID:15491133
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (213 Kb) [Save to disk]
  • Biological Unit Coordinates (1tw8.pdb1.gz) 107 Kb
  • Biological Unit Coordinates (1tw8.pdb2.gz) 103 Kb
  • LPC: Ligand-Protein Contacts for 1TW8
  • CSU: Contacts of Structural Units for 1TW8
  • Likely Quarternary Molecular Structure file(s) for 1TW8
  • Retrieve 1TW8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1TW8 from S2C, [Save to disk]
  • View 1TW8 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 1TW8
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1TW8, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1tw8a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1tw8b_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1tw8c_, region C [Jmol] [rasmolscript] [script source]
        - Domain d1tw8d_, region D [Jmol] [rasmolscript] [script source]
  • Fold representative 1tw8 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: [1tw8_A] [1tw8_E] [1tw8_D] [1tw8_G] [1tw8] [1tw8_B] [1tw8_C] [1tw8_H] [1tw8_F]
  • SWISS-PROT database: [P44413]
  • Domain organization of [T2D2_HAEIN] by SWISSPFAM
  • Other resources with information on 1TW8
  • Community annotation for 1TW8 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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