3IEC Signaling Protein Toxin date Jul 22, 2009
title Helicobacter Pylori Caga Inhibits Par1mark Family Kinases B Mimicking Host Substrates
authors C.E.Stebbins, D.Nesic, M.Miller
compound source
Molecule: Serinethreonine-Protein Kinase Mark2
Chain: A, B, C, D
Fragment: Unp Residues 49-363
Synonym: Mapmicrotubule Affinity-Regulating Kinase 2, Elkl Kinase, Emk1, Par1 Homolog;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Caga, Emk1, Mark2
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Cytotoxicity-Associated Immunodominant Antigen
Chain: E, F, G, H
Fragment: Unp Residues 885-1005
Synonym: 120 Kda Protein
Engineered: Yes

Organism_scientific: Helicobacter Pylori
Organism_common: Campylobacter Pylori
Organism_taxid: 210
Strain: Strain 26695
Gene: Caga, Cai
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 1 21 1
R_factor 0.204 R_Free 0.248
length a length b length c angle alpha angle beta angle gamma
93.466 93.256 113.955 90.00 100.94 90.00
method X-Ray Diffractionresolution 2.20 Å
enzyme Transferase E.C. BRENDA
A, D, C, B

Primary referenceHelicobacter pylori CagA inhibits PAR1-MARK family kinases by mimicking host substrates., Nesic D, Miller MC, Quinkert ZT, Stein M, Chait BT, Stebbins CE, Nat Struct Mol Biol. 2010 Jan;17(1):130-2. Epub 2009 Dec 6. PMID:19966800
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (236 Kb) [Save to disk]
  • Biological Unit Coordinates (3iec.pdb1.gz) 59 Kb
  • Biological Unit Coordinates (3iec.pdb2.gz) 59 Kb
  • Biological Unit Coordinates (3iec.pdb3.gz) 59 Kb
  • Biological Unit Coordinates (3iec.pdb4.gz) 59 Kb
  • CSU: Contacts of Structural Units for 3IEC
  • Structure Factors (726 Kb)
  • Retrieve 3IEC in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3IEC from S2C, [Save to disk]
  • Re-refined 3iec structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3IEC 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 3IEC
  • 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 3IEC, from MSDmotif at EBI
  • Fold representative 3iec from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3iec_C] [3iec_E] [3iec_F] [3iec_A] [3iec] [3iec_B] [3iec_G] [3iec_D] [3iec_H]
  • SWISS-PROT database: [P55980] [Q7KZI7]
  • Domain organization of [CAGA_HELPY] [MARK2_HUMAN] by SWISSPFAM
  • Domains found in 3IEC: [S_TKc] [UBA ] by SMART
  • Other resources with information on 3IEC
  • Community annotation for 3IEC 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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