quote:Originally posted by Tranquility Base: Yes this is fascinating stuff. As an ex-peptide person (I used to work on peptide toxins) I am aware of this but it is also extremely clear that this could (i) not systematically replicate an arbitary sequence (it only works for coiled-coils)
Does the article not claim that the molecules spontaneously adopt a helical structure? I take that as coiled. I know I don't have to ask you to correct me if I'm wrong.
quote:and (ii) is not related to the way in which DNA replicates. Perhaps this will become known as the coiled-coil world (ala the RNA world)?
Why does this have to replicate the way DNA replicates? As I understand it, DNA could be a late comer in the game.
quote:Originally posted by Tranquility Base: The point is that arbitrary DNA seqeunces replicate (via a host of enzyme systems). Peptides will not - only a few special sequences will. It's fascinating (I've been kicking myself ever since for not thinking of it) but it's not a systematic replication system.