Abstract
The human homolog of the Drosophila discs large tumor suppressor protein (hDLG) functions as a scaffolding protein that facilitates the transmission of diverse downstream signals. Here we show that hDLG interacts through its PDZ domains with the carboxy-terminal S/TXV motif of the mitochondrial ribosomal protein S-34 (MRP-S34). Our results suggest that hDLG interacts with MRP-S34 prior to entry of MRP-S34 into the mitochondria and may be involved in the trafficking of MRP-S34.
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