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Article Abstract
Recent advancements in genome analysis technology have revealed the presence of read-through transcripts in which transcription continues by skipping the polyA signal. We here identified and characterized a new read-through transcript, . With cDNA amplification from THP-1 cells, the product was successfully generated. We also generated , another isoform, by introducing point mutations. Notably, while APOE3 and APOE4 exhibited extracellular secretion, both TOMM40-APOE3 and TOMM40-APOE4 were localized exclusively to the mitochondria. But functionally, they did not affect mitochondrial membrane potential. Cell death induction studies illustrated increased cell death with TOMM40-APOE3 and TOMM40-APOE4, and we did not find any difference in cellular function between the two isoforms. These findings indicated that the new mitochondrial protein TOMM40-APOE has cell toxic ability.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10778128 | PMC |
| http://dx.doi.org/10.3390/cells13010069 | DOI Listing |
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