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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.

Abstract

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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