1B94 Hydrolase Dna date Feb 19, 1999
title Restriction Endonuclease Ecorv With Calcium
authors M.P.Thomas, S.E.Halford, R.L.Brady
compound source
Molecule: Dna (5'-D(Apapapgpaptpaptpcptpt)-3')
Chain: C, D
Engineered: Yes
Synthetic: Yes

Molecule: Restriction Endonuclease Ecorv
Chain: A, B
Engineered: Yes

Organism_scientific: Escherichia Coli
Organism_taxid: 562
Cellular_location: Cytoplasm
Gene: Ecorvr
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pbskrv
symmetry Space Group: P 1
R_factor 0.206 R_Free 0.270
length a length b length c angle alpha angle beta angle gamma
48.640 49.370 63.890 96.94 108.66 107.53
method X-Ray Diffractionresolution 1.90 Å
ligand CA enzyme Hydrolase E.C. BRENDA
related structures by homologous chain: 1EO4, 1SUZ
A, B
  • nuclease activity
  • endonuclease activity

  • Primary referenceStructural analysis of a mutational hot-spot in the EcoRV restriction endonuclease: a catalytic role for a main chain carbonyl group., Thomas MP, Brady RL, Halford SE, Sessions RB, Baldwin GS, Nucleic Acids Res 1999 Sep 1;27(17):3438-45. PMID:10446231
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (102 Kb) [Save to disk]
  • Biological Unit Coordinates (1b94.pdb1.gz) 98 Kb
  • LPC: Ligand-Protein Contacts for 1B94
  • CSU: Contacts of Structural Units for 1B94
  • Likely Quarternary Molecular Structure file(s) for 1B94
  • Structure Factors (371 Kb)
  • Retrieve 1B94 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1B94 from S2C, [Save to disk]
  • Re-refined 1b94 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1B94 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 1B94
  • 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 1B94, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1b94a_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1b94b_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1b94 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: [1b94_A] [1b94_D] [1b94] [1b94_B] [1b94_C]
  • SWISS-PROT database: [P04390]
  • Domain organization of [T2E5_ECOLX] by SWISSPFAM
  • Other resources with information on 1B94
  • Community annotation for 1B94 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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