doesn't actually replace the mtDNA but rather does the opposite thing of replacing the DNA, but, gimme a sec....
Mitochondria *contain* their own ribosomes. Are their codons in the 13 mitochondrial genes, or the more than 1000 which have already migrated to the nucleus?
-
-
it does seem vanishingly unlikely that it would transport only the correct RNA across its membrane, and that the cytosomal ribosome would ignore it. So, okay, hard problem.
-
The ribosomal RNAs are transcribed from mitochondrial DNA, the ribosomal proteins are encoded in nuclear DNA.
-
"in vertebrates, all mitochondrial ribosomal proteins are coded and synthesised outside the organelle." cit. https://www.sciencedirect.com/science/article/pii/S0005272898001613 …
-
The difference in codon interpretation is exciting because it may mean that, say, prepending a stop codon right after the primer might cause an extra tryptophan in the mitochondrion but prevent transcription in the cytosome.
End of conversation
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.