Tryptophan hydroxylase: cloning and expression of the rat brain enzyme in mammalian cells.


A cDNA encoding full-length tryptophan hydroxylase was produced by reverse transcriptase-PCR from rat brain mRNA and expressed transiently in a human fibroblast cell line. Catalytic activity was low unless transfected cells were grown in the presence of FeSO4. Recombinant tryptophan hydroxylase was found almost exclusively within the soluble compartment of… (More)



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