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The isolation of cDNA clones for CD48
H A Vaughan1, M M Henning, D F Purcell
1Department of Pathology, University of Melbourne, Parkville, Victoria, Australia.
Immunogenetics
|January 1, 1991
Summary
Researchers isolated a cDNA clone for the HuLy-m3 pan-leukocyte antigen. This antigen is linked to the cell membrane via a glycosyl phosphatidylinositol tail and shows similarity to the Blast-1 antigen.
Area of Science:
- Immunology
- Molecular Biology
- Cell Biology
Background:
- HuLy-m3 is a pan-leukocyte antigen identified by monoclonal antibody (mAb) 5-4.8.
- Understanding the molecular basis of leukocyte antigens is crucial for immunology and diagnostics.
Purpose of the Study:
- To isolate and analyze the cDNA clone encoding the HuLy-m3 antigen.
- To characterize the cellular localization and potential functional associations of HuLy-m3.
Main Methods:
- cDNA cloning and sequencing.
- Serological analysis using monoclonal antibodies.
- Transfection of cells expressing HuLy-m3.
- Experimental verification of glycosyl phosphatidylinositol (GPI) linkage.
Main Results:
- A cDNA clone encoding HuLy-m3 was successfully isolated and analyzed.
- Serological studies confirmed reactivity with CD48 cluster antibodies.
- The DNA sequence indicated a GPI-anchored protein, experimentally verified.
- Sequence similarity was observed with the human B-cell activation antigen Blast-1.
Conclusions:
- HuLy-m3 is a GPI-anchored pan-leukocyte antigen.
- HuLy-m3 shares characteristics with CD48 and Blast-1, suggesting potential functional relationships.
- Further investigation into HuLy-m3's role in leukocyte function is warranted.