1E07

Model of human carcinoembryonic antigen by homology modelling and curve-fitting to experimental solution scattering data

• PDB DOI:  https://doi.org/10.2210/pdb1E07/pdb

• Classification: GLYCOPROTEIN
• Organism(s): Homo sapiens
• Mutation(s): No 


• Deposited: 2000-03-11 Released: 2000-07-04 
• Deposition Author(s): Boehm, M.K., Perkins, S.J.

---

Experimental Data Snapshot

• Method: SOLUTION SCATTERING

Literature

Structural models for carcinoembryonic antigen and its complex with the single-chain Fv antibody molecule MFE23.

Boehm, M.K., Perkins, S.J.

(2000) FEBS Lett 475: 11-16

• PubMed: 10854848 
• DOI: https://doi.org/10.1016/s0014-5793(00)01612-4
• Primary Citation of Related Structures:  
  1E07


• PubMed Abstract: 
  

  MFE23 is a single chain Fv antibody that has a high affinity for carcinoembryonic antigen (CEA). A full homology model for CEA based on V-type, I-type and C2-type immunoglobulin folds, 28 oligosaccharides and the interdomain angle of CD2 was validated using solution scattering data. The superimposition of the intermolecular contacts observed in our recent crystal structure of MFE23 with the N-terminal domain of CEA permitted the MFE23-CEA complex to be modelled. Good surface and electrostatic complementarity and carbohydrate-unhindered access of MFE23 with the indentation between the first two CEA domains was observed. The model is supported by biochemical data and provides insight on the high affinity of MFE23 for CEA.

---

Organizational Affiliation: 

Department of Biochemistry and Molecular Biology, Royal Free and University College Medical School, University College London, London, UK.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 70.62 kDa 
• Atom Count: 642 
• Modelled Residue Count: 642 
• Deposited Residue Count: 642 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
CARCINOEMBRYONIC ANTIGEN	A	642	Homo sapiens	Mutation(s): 0  Gene Names: CEACAM5, CEA
UniProt & NIH Common Fund Data Resources
Find proteins for P06731 (Homo sapiens) Explore P06731  Go to UniProtKB:  P06731
PHAROS:  P06731

Experimental Data & Validation

Experimental Data

• Method: SOLUTION SCATTERING

Structure Validation

Entry History 

Deposition Data

• Released Date: 2000-07-04 
Deposition Author(s): Boehm, M.K., Perkins, S.J.

Revision History  

• Version 1.0: 2000-07-04
  Type: Initial release
  
• Version 1.1: 2011-12-28
  Changes: Database references, Version format compliance
• Version 1.2: 2019-10-09
  Changes: Data collection, Database references