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    Mol Immunol. 1994 Aug;31(12):895-900.

    Structure of the murine CD40 ligand gene.

    Tsitsikov EN, Ramesh N, Geha RS.

    Division of Immunology, Children's Hospital, Boston, MA 02115.

    The mouse CD40 ligand (CD40L) gene was cloned, sequenced and characterized. DNA sequence analysis showed that the CD40L gene comprises five exons and four intervening introns, spread over 13-14 kb of genomic DNA. The putative site for initiation of mRNA transcription was identified at 67 bp upstream of the translation initiation (ATG) codon. The nucleotide sequence of the 5'-flanking region of this gene revealed the presence of several regulatory regions including a TATA-like box, an Sp1-like box and six potential NF-AT-like motifs. The 3'-untranslated region of the murine CD40L gene contained two ATTTA-elements which are thought to confer instability to the mRNA of many cytokines and two adjacent dinucleotide repeates, (CT)25 and (CA)45. These elements may play a role in the post-transcriptional regulation of CD40L gene expression.

    PMID: 7520529 [PubMed - indexed for MEDLINE]

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