authors Soultanas, P., Dillingham, M.S., Velankar, S.S., Wigley, D.B.
compound source
R_Free 0.2690000
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 2.50
ligand ATP, MG enzyme
related structures by homologous chain: 1PJR, 1QHH

Primary referenceDNA binding mediates conformational changes and metal ion coordination in the active site of PcrA helicase., Soultanas P, Dillingham MS, Velankar SS, Wigley DB, J Mol Biol 1999 Jul 2;290(1):137-48. PMID:10388562
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (115 Kb) [Save to disk]
  • Biological Unit Coordinates (1qhg.pdb1.gz) 109 Kb
  • LPC: Ligand-Protein Contacts for 1QHG
  • CSU: Contacts of Structural Units for 1QHG
  • Likely Quarternary Molecular Structure file(s) for 1QHG
  • Structure Factors (304 Kb)
  • Retrieve 1QHG in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1QHG from S2C, [Save to disk]
  • Re-refined 1qhg structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1QHG 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 1QHG
  • 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 1QHG, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1qhga1, region A:1-318 [Jmol] [rasmolscript] [script source]
        - Domain d1qhga2, region A:319-651 [Jmol] [rasmolscript] [script source]
  • Fold representative 1qhg 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: [1qhg] [1qhg_A]
  • SWISS-PROT database: [P56255]
  • Domain organization of [PCRA_BACST] by SWISSPFAM
  • Other resources with information on 1QHG
  • Community annotation for 1QHG at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • 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, 1996-2014,2022
    Bioinformatics Unit
    Weizmann Institute of Science