2XI9 Cell Adhesion date Jun 28, 2010
title Pilus-Presented Adhesin, Spy0125 (Cpa), P1 Form
authors J.A.Pointon, W.D.Smith, G.Saalbach, A.Crow, M.A.Kehoe, M.J.Banfie
compound source
Molecule: Ancillary Protein 1
Chain: A, B
Fragment: C-Terminal Domain, Residues 286-723
Synonym: Spy0125, Collagen Binding Protein
Engineered: Yes
Other_details: Internal Thioester Linkage Between Cys426 An Intramolecular Isopeptide Bond Between Lys297 And Asp595. Intramolecular Isopeptide Bond Between Lys610 And Asn715.
 Organism_scientific: Streptococcus Pyogenes
Organism_taxid: 1314
Strain: Sf370
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet28a
symmetry Space Group: P 1
R_factor 0.206 R_Free 0.232
crystal
cell
length a length b length c angle alpha angle beta angle gamma
35.480 66.460 101.800 86.06 90.06 75.08
method X-Ray Diffractionresolution 1.90 Å
ligand MSE enzyme
Primary referenceA highly unusual thioester bond in a pilus adhesin is required for efficient host cell interaction., Pointon JA, Smith WD, Saalbach G, Crow A, Kehoe MA, Banfield MJ, J Biol Chem. 2010 Aug 19. PMID:20729215
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (232 Kb) [Save to disk]
  • Biological Unit Coordinates (2xi9.pdb1.gz) 112 Kb
  • Biological Unit Coordinates (2xi9.pdb2.gz) 114 Kb
  • LPC: Ligand-Protein Contacts for 2XI9
  • CSU: Contacts of Structural Units for 2XI9
  • Structure Factors (3035 Kb)
  • Retrieve 2XI9 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2XI9 from S2C, [Save to disk]
  • Re-refined 2xi9 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 2XI9 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 2XI9
  • Ramachandran plot from PDBSum
    • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 2XI9, from MSDmotif at EBI
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2xi9_B] [2xi9_A] [2xi9]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
    • Other resources with information on 2XI9
  • Community annotation for 2XI9 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