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[Immunoglobulin kappa-genes. Cloning, hybridization and structural analysis]
Molekuliarnaia Biologiia
|January 1, 1985
Summary
Researchers isolated immunoglobulin (Ig) genes and studied their expression. They found gene rearrangements in myeloma cells and identified differentiated genes in hybridoma cells, suggesting feedback control in B cells.
Area of Science:
- Molecular immunology
- Genetic immunology
Context:
- Investigating the structure and expression of immunoglobulin (Ig) genes is crucial in molecular and genetic immunology.
- Isolation of mRNA for Ig light and heavy chains is a key initial step.
Purpose:
- To develop strategies for mRNA preparation for immunoglobulin chains.
- To analyze gene rearrangements and expression in myeloma and hybridoma cells.
Summary:
- Combined affinity purification and immunoprecipitation for efficient mRNA preparation.
- Synthesized cDNA chains and isolated a kappa-chain gene fragment clone.
- Used the clone as a probe to detect gene rearrangements in myeloma cells and differentiated gene expression in hybridoma cells.
Impact:
- Demonstrated allelic gene rearrangement in myeloma cells.
- Showed the presence of differentiated genes in hybridoma cells post-passage.
- Discussed B cell gene expression coordination via feedback control.