2QSQ Cell Adhesion date Jul 31, 2007
title Crystal Structure Of The N-Terminal Domain Of Carcinoembryon (Cea)
authors I.Le Trong, N.Korotkova, S.L.Moseley, R.E.Stenkamp
compound source
Molecule: Carcinoembryonic Antigen-Related Cell Adhesion Mo
Chain: A, B
Fragment: N-Terminal Domain Of Cea (Unp Residues 34-110)
Synonym: Carcinoembryonic Antigen, Cea, Meconium Antigen 10 Antigen;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Ceacam5, Cea
Expression_system: Escherichia Coli Bl21(De3)
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet-21d
symmetry Space Group: H 3
R_factor 0.180 R_Free 0.203
length a length b length c angle alpha angle beta angle gamma
132.531 132.531 82.762 90.00 90.00 120.00
method X-Ray Diffractionresolution 1.95 Å
ligand CL, GOL enzyme
note 2QSQ is a representative structure
Primary referenceBinding of Dr adhesins of Escherichia coli to carcinoembryonic antigen triggers receptor dissociation., Korotkova N, Yang Y, Le Trong I, Cota E, Demeler B, Marchant J, Thomas WE, Stenkamp RE, Moseley SL, Matthews S, Mol Microbiol. 2007 Dec 11;. PMID:18086185
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (47 Kb) [Save to disk]
  • Biological Unit Coordinates (2qsq.pdb1.gz) 42 Kb
  • LPC: Ligand-Protein Contacts for 2QSQ
  • CSU: Contacts of Structural Units for 2QSQ
  • Likely Quarternary Molecular Structure file(s) for 2QSQ
  • Structure Factors (311 Kb)
  • Retrieve 2QSQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2QSQ from S2C, [Save to disk]
  • Re-refined 2qsq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2QSQ 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 2QSQ
  • 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 2QSQ, from MSDmotif at EBI
  • Fold representative 2qsq from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2qsq_A] [2qsq] [2qsq_B]
  • SWISS-PROT database: [P06731]
  • Domain organization of [CEAM5_HUMAN] by SWISSPFAM
  • Other resources with information on 2QSQ
  • Community annotation for 2QSQ 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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