Fig. 7.
Fig. 7. In vitro transcription, translation, and transport of ALAS-E precursor into mitochondria. Wild type (lanes 2 and 5) and V190 mutant ALAS-E (lanes 3 and 6) precursors were synthesized in the presence of [35S]-labeled methionine. Lanes 1 and 4 are controls in which the RNA was omitted. The translation products were incubated with mouse liver mitochondria and then centrifuged to collect the mitochondria. Supernatant (lanes 1 to 3) and mitochondrial (lanes 4 to 6) fractions were analyzed by SDS-PAGE. Note that the sizes of the precursors are similar, but the processed mutant proteins are larger than the wild type.

In vitro transcription, translation, and transport of ALAS-E precursor into mitochondria. Wild type (lanes 2 and 5) and V190 mutant ALAS-E (lanes 3 and 6) precursors were synthesized in the presence of [35S]-labeled methionine. Lanes 1 and 4 are controls in which the RNA was omitted. The translation products were incubated with mouse liver mitochondria and then centrifuged to collect the mitochondria. Supernatant (lanes 1 to 3) and mitochondrial (lanes 4 to 6) fractions were analyzed by SDS-PAGE. Note that the sizes of the precursors are similar, but the processed mutant proteins are larger than the wild type.

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