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Published on: November 20, 2013
Electron-microscopic studies of the CA antigen, epitectin
M E Bramwell1, G Wiseman, D M Shotton
1Sir William Dunn School of Pathology, University of Oxford, England.
Journal of Cell Science
|December 1, 1986
Summary
Epitectin, a mucin-like glycoprotein, was visualized using electron microscopy. This study determined its elongated strand structure, approximately 270 nm in length, with specific antibody binding sites identified.
Area of Science:
- Biochemistry
- Molecular Biology
- Cell Biology
Background:
- Epitectin is a mucin-like glycoprotein recognized by specific monoclonal antibodies (CA1, CA2, CA3).
- Understanding the structural characteristics of epitectin is crucial for elucidating its biological functions.
Purpose of the Study:
- To determine the shape and size of epitectin using electron microscopy.
- To investigate the binding sites of monoclonal antibodies CA1 and CA2 on the epitectin molecule.
Main Methods:
- Electron microscopy was employed to visualize the epitectin glycoprotein.
- Morphological analysis was performed to ascertain the dimensions of the molecule.
Main Results:
- Epitectin presents as a single, extended strand.
- The mean length of the epitectin strand was measured to be approximately 270 nm.
- Monoclonal antibodies CA1 and CA2 demonstrated preferential binding to a terminal site on the epitectin molecule.
Conclusions:
- Epitectin possesses an elongated filamentous structure.
- The findings provide insights into the molecular architecture of epitectin and its interactions with specific antibodies.
