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Updated: Jul 2, 2026

Generation of Monoclonal Antibodies Against Natural Products
Published on: April 6, 2019
Generation of monoclonal antibody against canine neural-cell adhesion molecule
Yosuke Uematsu1, Tomohiro Yamaguchi, Ayumi Koike
1Canine-Lab. Inc, Kanda-Ogawa-machi, Chiyoda-ku, Tokyo, Japan.
Insights
A new monoclonal antibody, K9BYU, successfully targets canine neural-cell adhesion molecule (N-CAM). This antibody recognizes multiple N-CAM isoforms in canine brain tissue, proving useful for N-CAM research.
Area of Science:
- Immunology
- Neuroscience
- Molecular Biology
Background:
- Neural-cell adhesion molecule (N-CAM) plays a crucial role in neuronal development and function.
- Understanding canine N-CAM expression and function is vital for comparative neuroscience and translational research.
Purpose of the Study:
- To generate and characterize a novel monoclonal antibody, K9BYU, specific for canine neural-cell adhesion molecule (N-CAM).
- To evaluate the utility of K9BYU as a research tool for studying canine N-CAM.
Main Methods:
- Generation of monoclonal antibody K9BYU using recombinant canine N-CAM extracellular domain expressed in Escherichia coli.
- Immunoreactivity confirmation via Western blotting against insect cell-expressed canine N-CAM.
- Analysis of canine brain tissue using Western blotting to detect N-CAM isoforms.
Main Results:
- K9BYU demonstrated immunoreactivity to insect cell-expressed canine N-CAM.
- Western blotting of canine brain tissue revealed that K9BYU detects three major N-CAM isoforms (N-CAM-120, -140, and -180).
- These detected isoforms correspond to known major isoforms in human and mouse N-CAM.
Conclusions:
- The monoclonal antibody K9BYU is a specific and effective tool for detecting canine N-CAM.
- K9BYU facilitates the study of canine N-CAM isoforms, aiding comparative neuroscience research.
Abstract:
A monoclonal antibody, K9BYU, was generated using Escherichia coli recombinant extracellular domain of canine neural-cell adhesion molecule (N-CAM) as an antigen. Immunoreactivity of K9BYU to insect cell recombinant canine N-CAM was demonstrated by Western blotting using Sf9 insect cells transfected with the canine N-CAM gene. In Western blotting against canine brain tissue, K9BYU detected three isoforms of N-CAM that correspond to three major isoforms of human and mouse N-CAM (N-CAM-120, -140, and -180). From these results, K9BYU was considered to be a useful tool for research of canine N-CAM.
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