It’s because there is only one single place in the genome that you really want to track: the furin cleavage site (FCS). I assumed the wrong reason for using double CGG.
It’s not to distinguish natural from lab-made viruses (although it does do that).
It’s so that you can have a test inthelab for whether the FCS you have inserted is working or not. It’s so that you can “check your work”.
The unique spelling with double CGG is the only one out of the 36 possible configurations of arginine (the “R” in the “PRRA” FCS insertion) that allows you to track whether the cleavage you are trying to engineer has happened.
Steven Quay explains this at the 59:00 mark of his interview with Julius KIllerby, which is well worth listening to in its entirety, as it explains the odds of a lab leak vs. natural evolution, based on undisputed facts.
It’s because there is only one single place in the genome that you really want to track: the furin cleavage site (FCS). I assumed the wrong reason for using double CGG.
It’s not to distinguish natural from lab-made viruses (although it does do that).
It’s so that you can have a test in the lab for whether the FCS you have inserted is working or not. It’s so that you can “check your work”.
The unique spelling with double CGG is the only one out of the 36 possible configurations of arginine (the “R” in the “PRRA” FCS insertion) that allows you to track whether the cleavage you are trying to engineer has happened.
Steven Quay explains this at the 59:00 mark of his interview with Julius KIllerby, which is well worth listening to in its entirety, as it explains the odds of a lab leak vs. natural evolution, based on undisputed facts.