1B8H Transferase date Feb 01, 1999
title Sliding Clamp, Dna Polymerase
authors Y.Shamoo, T.A.Steitz
compound source
Molecule: Dna Polymerase Processivity Component
Chain: A, B, C
Synonym: Gp45, Dna Polymerase Sliding Clamp, Dna Polymerase Accessory Protein 45;
Engineered: Yes
Organism_scientific: Enterobacteria Phage Rb69
Organism_taxid: 12353
Gene: Gene 45
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_cell_line: Bl21(De3)

Molecule: Dna Polymerase Fragment
Chain: D
Fragment: Residues 893-903
Synonym: Gp43
Engineered: Yes

Synthetic: Yes
Other_details: Sequence From Bacteriophage Rb69, Gene 43
symmetry Space Group: P 21 21 21
R_factor 0.265 R_Free 0.313
length a length b length c angle alpha angle beta angle gamma
67.000 90.500 146.000 90.00 90.00 90.00
method X-Ray Diffractionresolution 3.00 Å
related structures by homologous chain: 1CZD
A, C, B

Primary referenceBuilding a replisome from interacting pieces: sliding clamp complexed to a peptide from DNA polymerase and a polymerase editing complex., Shamoo Y, Steitz TA, Cell 1999 Oct 15;99(2):155-66. PMID:10535734
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (112 Kb) [Save to disk]
  • Biological Unit Coordinates (1b8h.pdb1.gz) 108 Kb
  • CSU: Contacts of Structural Units for 1B8H
  • Likely Quarternary Molecular Structure file(s) for 1B8H
  • Structure Factors (144 Kb)
  • Retrieve 1B8H in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1B8H from S2C, [Save to disk]
  • Re-refined 1b8h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1B8H 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 1B8H
  • 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 1B8H, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1b8ha1, region A:1-110 [Jmol] [rasmolscript] [script source]
        - Domain d1b8ha2, region A:111-228 [Jmol] [rasmolscript] [script source]
        - Domain d1b8hb1, region B:1-110 [Jmol] [rasmolscript] [script source]
        - Domain d1b8hb2, region B:111-228 [Jmol] [rasmolscript] [script source]
        - Domain d1b8hc1, region C:1-110 [Jmol] [rasmolscript] [script source]
        - Domain d1b8hc2, region C:111-228 [Jmol] [rasmolscript] [script source]
  • Fold representative 1b8h from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1b8h] [1b8h_A] [1b8h_C] [1b8h_B] [1b8h_D]
  • SWISS-PROT database: [O80164] [Q38087]
  • Domain organization of [DPA5_BPR69] [DPOL_BPR69] by SWISSPFAM
  • Other resources with information on 1B8H
  • Community annotation for 1B8H 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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