1S5E Transferase,Toxin date Jan 20, 2004
title Cholera Holotoxin, Crystal Form 1
authors C.J.O'Neal, E.I.Amaya, M.G.Jobling, R.K.Holmes, W.G.Hol
compound source
Molecule: Cholera Enterotoxin, A Chain Precursor
Chain: A, B
Synonym: Nad(+)--Diphthamide Adp- Ribosyltransferase, Chole Enterotoxin A Subunit;
Ec: 2.4.2.36
Engineered: Yes
Organism_scientific: Vibrio Cholerae
Organism_taxid: 666
Gene: Ctxa, Toxa, Vc1457
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Parct5

Molecule: Cholera Toxin B Protein (Ctb)
Chain: D, E, F, G, H, J, K, L, M, N
Engineered: Yes

Organism_scientific: Vibrio Cholerae
Organism_taxid: 666
Gene: Ctxb, Toxb, Vc1456
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Parct5
symmetry Space Group: P 1 21 1
R_factor 0.167 R_Free 0.205
crystal
cell
length a length b length c angle alpha angle beta angle gamma
59.931 108.230 122.976 90.00 95.89 90.00
method X-Ray Diffractionresolution 1.90 Å
ligand GAL, NA enzyme Transferase E.C.2.4.2.36 BRENDA
related structures by homologous chain: 1FD7, 1LTS, 1S5D
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • toxin activity


  • F, J, N, K, E, H, M, D, G, L
  • host cell surface binding
  • toxin activity


  • Primary referenceCrystal Structures of an Intrinsically Active Cholera Toxin Mutant Yield Insight into the Toxin Activation Mechanism(,)., O'Neal CJ, Amaya EI, Jobling MG, Holmes RK, Hol WG, Biochemistry 2004 Apr 6;43(13):3772-3782. PMID:15049684
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (252 Kb) [Save to disk]
  • Biological Unit Coordinates (1s5e.pdb1.gz) 125 Kb
  • Biological Unit Coordinates (1s5e.pdb2.gz) 123 Kb
  • LPC: Ligand-Protein Contacts for 1S5E
  • CSU: Contacts of Structural Units for 1S5E
  • Likely Quarternary Molecular Structure file(s) for 1S5E
  • Structure Factors (1712 Kb)
  • Retrieve 1S5E in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1S5E from S2C, [Save to disk]
  • Re-refined 1s5e structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1S5E 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 1S5E
  • 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
  • 3D motif for 1S5E, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1s5ea_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1s5eb_, region B [Jmol] [rasmolscript] [script source]
        - Domain d1s5ed_, region D [Jmol] [rasmolscript] [script source]
        - Domain d1s5ee_, region E [Jmol] [rasmolscript] [script source]
        - Domain d1s5ef_, region F [Jmol] [rasmolscript] [script source]
        - Domain d1s5eg_, region G [Jmol] [rasmolscript] [script source]
        - Domain d1s5eh_, region H [Jmol] [rasmolscript] [script source]
        - Domain d1s5ej_, region J [Jmol] [rasmolscript] [script source]
        - Domain d1s5ek_, region K [Jmol] [rasmolscript] [script source]
        - Domain d1s5el_, region L [Jmol] [rasmolscript] [script source]
        - Domain d1s5em_, region M [Jmol] [rasmolscript] [script source]
        - Domain d1s5en_, region N [Jmol] [rasmolscript] [script source]
  • 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: [1s5e] [1s5e_G] [1s5e_K] [1s5e_M] [1s5e_F] [1s5e_H] [1s5e_A] [1s5e_B] [1s5e_E] [1s5e_J] [1s5e_D] [1s5e_L] [1s5e_N]
  • SWISS-PROT database: [P01555] [P01556]
  • Domain organization of [CHTA_VIBCH] [CHTB_VIBCH] by SWISSPFAM
  • Other resources with information on 1S5E
  • Community annotation for 1S5E 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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