Properties of an abundant RNA-binding protein in yeast mitochondria.

Abstract excerpt

We have previously identified a protein with Mr approximately 40,000 (p40) that binds with high specificity and affinity to the 5'-untranslated leaders of mitochondrial mRNAs in yeast. Here we show that this protein is abundant, comprising about 0.4% of total mitochondrial protein. p40 is present in a cytoplasmic (rho degree) petite mutant that lacks mitochondrial protein synthesis and is therefore nuclear...

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