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    Biochem Biophys Res Commun. 1987 Aug 14;146(3):971-5.

    Isolation of a novel cDNA clone for human tyrosine hydroxylase: alternative RNA splicing produces four kinds of mRNA from a single gene.

    Kaneda N, Kobayashi K, Ichinose H, Kishi F, Nakazawa A, Kurosawa Y, Fujita K, Nagatsu T.

    Human tyrosine hydroxylase (TH) cDNA was isolated by molecular cloning. Lambda gt 11 cDNA library constructed from human pheochromocytoma was screened with a synthetic 23-mer oligonucleotide complementary to rat TH mRNA. We found a novel type of cDNA clone whose N-terminal sequence is similar to but clearly distinct from each of the three types (type 1, 2 and 3) of TH cDNA reported by Grima et al. [Nature (1987) 326, 707-711]. It contains both the 12-bp insert characteristic of type 2 cDNA and the 81-bp sequence of type 3. This novel cDNA clone was designated as type 4. Southern blot analysis of human genomic DNA indicated that TH is encoded by a single gene. This suggests that the four different forms of TH mRNA are produced by alternative RNA splicing from a single primary transcript.

    PMID: 2887169 [PubMed - indexed for MEDLINE]

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