Chicken lysozyme gene contains several intervening sequences

Area of Science:

• Molecular Biology
• Genetics
• Genomics

Background:

• The chicken lysozyme gene is crucial for immune response.
• Understanding gene organization, including intervening sequences (introns), is key to gene regulation and function.

Purpose of the Study:

• To delineate the structural organization of the chicken lysozyme gene and its flanking regions.
• To compare the gene's structure in different cellular contexts.

Main Methods:

• Restriction endonuclease digestion of chicken genomic DNA.
• Agarose gel electrophoresis for DNA fragment separation.
• Southern blotting with labeled probes for gene sequence detection (hybridization).

Main Results:

• Identified at least three intervening sequences within the lysozyme gene.
• Two intervening sequences were located within the protein-coding region.
• One intervening sequence was found in the 3' untranslated region.
• No structural differences in lysozyme or ovalbumin genes were observed between oviduct and sperm DNA.

Conclusions:

• The chicken lysozyme gene contains multiple introns, impacting its overall structure.
• The gene's organization is conserved across different somatic cell types, suggesting stable genomic architecture.