First Author | Otsuka T | Year | 1987 |
Journal | Nucleic Acids Res | Volume | 15 |
Issue | 1 | Pages | 333-44 |
PubMed ID | 3029676 | Mgi Jnum | J:8612 |
Mgi Id | MGI:57077 | Doi | 10.1093/nar/15.1.333 |
Citation | Otsuka T, et al. (1987) Structural analysis of the mouse chromosomal gene encoding interleukin 4 which expresses B cell, T cell and mast cell stimulating activities. Nucleic Acids Res 15(1):333-44 |
abstractText | Based on homology with the mouse interleukin 4 (IL-4) cDNA that expresses B cell, T cell, and mast cell stimulating activities (Lee, F. et al., (1986) Proc. Natl. Acad. Sci. USA 83, 2061), we have isolated from a Balb/c mouse liver DNA library the mouse chromosomal gene and analyzed its overall structure. The gene occurs as a single copy in the haploid genome and contains four exons and three introns. The exon sequences almost completely match the cloned cDNA sequence. Interestingly, there is a fairly high degree of homology between mouse IL-4 and mouse IL-2 genes extending more than 200 bp upstream of a TATA like sequence located 20 bp upstream of the transcription initiation site. These sequences may play an important role in the regulated expression of this gene in concanavalin A or antigen-stimulated T lymphocytes. The supernatant of COS7 cells transfected with plasmid DNA containing the entire gene exhibited both T cell growth factor and mast cell growth factor activities. |