2NRA Replication Dna date Nov 01, 2006
title Crystal Structure Of Pi Initiator Protein In Complex With It
authors M.K.Swan, D.Bastia, C.Davies
compound source
Molecule: 5'-D(Gpapapcpaptpgpapgpapgpcptptpa Cpgptpcpt)-3';
Chain: A
Engineered: Yes
Other_details: Iteron Oligonucleotide
Synthetic: Yes

Molecule: 5'-D(Gpapcpgptpapcptpapapgpcptpcpt Gptptpcpt)-3';
Chain: B
Engineered: Yes
Other_details: Iteron Oligonucleotide

Synthetic: Yes

Molecule: Pi Protein
Chain: C
Synonym: Replication Initiation Protein
Engineered: Yes
Mutation: Yes

Organism_scientific: Escherichia Coli
Organism_taxid: 562
Gene: Pir
Expression_system: Escherichia Coli K12
Expression_system_taxid: 83333
Expression_system_strain: K12
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Ptxb1-Intein
symmetry Space Group: P 61 2 2
R_factor 0.224 R_Free 0.267
length a length b length c angle alpha angle beta angle gamma
125.900 125.900 138.200 90.00 90.00 120.00
method X-Ray Diffractionresolution 3.10 Å
  • DNA-directed DNA polymerase ...

  • Primary referenceCrystal structure of pi initiator protein-iteron complex of plasmid R6K: implications for initiation of plasmid DNA replication., Swan MK, Bastia D, Davies C, Proc Natl Acad Sci U S A. 2006 Dec 5;103(49):18481-6. Epub 2006 Nov 21. PMID:17124167
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (66 Kb) [Save to disk]
  • Biological Unit Coordinates (2nra.pdb1.gz) 59 Kb
  • CSU: Contacts of Structural Units for 2NRA
  • Likely Quarternary Molecular Structure file(s) for 2NRA
  • Structure Factors (212 Kb)
  • Retrieve 2NRA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2NRA from S2C, [Save to disk]
  • Re-refined 2nra structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2NRA 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 2NRA
  • 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 2NRA, from MSDmotif at EBI
  • Fold representative 2nra from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2nra_B] [2nra] [2nra_A] [2nra_C]
  • SWISS-PROT database: [P03067]
  • Domain organization of [PIR_ECOLX] by SWISSPFAM
  • Other resources with information on 2NRA
  • Community annotation for 2NRA 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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