3ORC Gene Regulation Dna date Apr 23, 1998
title Crystal Structure Of An Engineered Cro Monomer Bound Nonspec To Dna
authors R.A.Albright, M.C.Mossing, B.W.Matthews
compound source
Molecule: Dna (5'-D(Tpaptpcpgpaptpa)-3')
Chain: R, S
Engineered: Yes
Other_details: 50% Occupancy In The Outermost Positions
Synthetic: Yes

Molecule: Protein (Cro Repressor)
Chain: A
Engineered: Yes
Mutation: Yes
Other_details: Wildtype Cro Does Not Form Stable Monomers. Engineered-Monomer Presented Here Contains A 5-Residue Inse [Dgevk] Following K 56. The First 2 Residues Of This Insert The Formation Of A Beta-Turn. The Remaining 3 Residues Mimi Of The Wildtype Dimer Interface, Allowing Stabilizing Inter Be Maintained. The Overall Structure Of This Monomer Is Qui To A Subunit Of The Wildtype Dimer.

Organism_scientific: Enterobacteria Phage Lambda
Organism_taxid: 10710
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: X90
Expression_system_plasmid: Pucro.Mdg
Expression_system_gene: Cro Mutant K56-[Dgevk]
symmetry Space Group: C 1 2 1
length a length b length c angle alpha angle beta angle gamma
45.720 60.660 45.720 90.00 112.70 90.00
method X-Ray Diffractionresolution 3.00 Å
related structures by homologous chain: 1COP, 6CRO

Primary referenceCrystal structure of an engineered Cro monomer bound nonspecifically to DNA: possible implications for nonspecific binding by the wild-type protein., Albright RA, Mossing MC, Matthews BW, Protein Sci 1998 Jul;7(7):1485-94. PMID:9684880
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (21 Kb) [Save to disk]
  • Biological Unit Coordinates (3orc.pdb1.gz) 17 Kb
  • CSU: Contacts of Structural Units for 3ORC
  • Likely Quarternary Molecular Structure file(s) for 3ORC
  • Structure Factors (31 Kb)
  • Retrieve 3ORC in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3ORC from S2C, [Save to disk]
  • Re-refined 3orc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3ORC 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 3ORC
  • 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 3ORC, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d3orca_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 3orc 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: [3orc_S] [3orc_A] [3orc_R] [3orc]
  • SWISS-PROT database: [P03040]
  • Domain organization of [RCRO_LAMBD] by SWISSPFAM
  • Other resources with information on 3ORC
  • Community annotation for 3ORC at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 3ORC from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

  • You may enter another PDB ID code
    Go [Back], to the [PDB Lite page], to the [OCA Search page] or to the [PDB Home page]
    OCA© by Jaime Prilusky, 1996-2014
    Bioinformatics Unit
    Weizmann Institute of Science