Cloning of a full length cDNA encoding canine Interleukin-4

Area of Science:

• Immunology
• Molecular Biology
• Genetics

Background:

• Interleukin-4 (IL-4) is a crucial cytokine involved in immune responses.
• Understanding canine IL-4 (cIL-4) is vital for veterinary immunology and comparative studies.
• Previous research lacked a complete cDNA sequence for canine IL-4.

Purpose of the Study:

• To generate the full-length complementary DNA (cDNA) sequence for canine Interleukin-4 (cIL-4).
• To analyze the genetic features and regulatory elements of the cIL-4 gene.

Main Methods:

• Designed primers based on conserved transcription start point (tsp) regions of human and bovine IL-4 genes.
• Utilized a gene-specific primer and adaptor primer pair for amplification.
• Generated the full-length cIL-4 cDNA from pokeweed mitogen-stimulated canine peripheral blood lymphocytes.

Main Results:

• Successfully obtained the full-length cIL-4 cDNA sequence.
• The open reading frame (ORF) is 399 nucleotides (nt) long.
• Identified six potential glycosylation sites and five gene regulatory motifs in the 3' untranslated region (UTR).

Conclusions:

• The study provides the complete cDNA sequence for canine IL-4.
• The identified sequence features offer insights into cIL-4 protein structure and gene expression regulation.
• This resource is valuable for further research in canine immunology and molecular biology.