Published on Feb. 1, 2003 in Nat Genet volume 33.

PubMed ID: 12496758


Abstract:

Human mitochondrial transcription factor B1 (h-mtTFB1) has an unprecedented relationship to RNA methyltransferases. Here, we show that this protein methylates a conserved stem-loop in bacterial 16S rRNA and that the homologous sequence in the human mitochondrial 12S molecule is similarly modified. Thus, h-mtTFB1 appears to be dual-function protein, acting both as a transcription factor and an rRNA-modification enzyme.


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