1CL8 Protein Dna date May 06, 1999
title A Pre-Transition State Eco Ri Endonucleasecognate Dna (Tcgcgapttcgcg) Complex With Dna Base Analog Purine (P)
authors M.Horvath, J.M.Rosenberg
compound source
Molecule: Dna (5'-D(Tpcpgpcpgpap(Prn) Ptptpcpgpcpg)-3');
Chain: B
Engineered: Yes
Synthetic: Yes

Molecule: Protein (Endonuclease)
Chain: A

Organism_scientific: Escherichia Coli
Organism_taxid: 562
symmetry Space Group: P 3 2 1
R_factor 0.243 R_Free 0.287
length a length b length c angle alpha angle beta angle gamma
117.833 117.833 48.989 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.80 Å
ligand PRN enzyme
related structures by homologous chain: 1CKQ
  • nuclease activity
  • endonuclease activity

  • Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (54 Kb) [Save to disk]
  • Biological Unit Coordinates (1cl8.pdb1.gz) 100 Kb
  • LPC: Ligand-Protein Contacts for 1CL8
  • CSU: Contacts of Structural Units for 1CL8
  • Likely Quarternary Molecular Structure file(s) for 1CL8
  • Retrieve 1CL8 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CL8 from S2C, [Save to disk]
  • View 1CL8 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 1CL8
  • 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 1CL8, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1cl8a_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1cl8 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: [1cl8_B] [1cl8_A] [1cl8]
  • SWISS-PROT database: [P00642]
  • Domain organization of [T2E1_ECOLX] by SWISSPFAM
  • Other resources with information on 1CL8
  • Community annotation for 1CL8 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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