Anyone who was researching the origins of SARS-CoV-2 early last year cannot fail to remember the furore when Scientists in India published the paper, Uncanny similarity of unique inserts in the 2019-nCoV spike protein to HIV-1 gp120 and Gag.
They had discovered the SARS-CoV-2 Spike Protein was almost identical to the original SARS Spike Protein except for four new inserted gene fragments which matched genes from HIV-1. Shortly after that it was found that the SARS-CoV-2 Spike Protein has a furin cleavage site which the original SARS virus did not.
This can only mean one thing. As the rest of the Spike Protein Genome is the same as SARS, those four new gene fragments have to be that new furin cleavage site. It cannot mean anything else and in fact in the Indian research paper they said the four new inserts appear to be unconnected until you look at the genome modelled in 3D. Then you see it wraps around and those 4 gene fragments combine to create the receptor binding site.
So what can we learn from that?
- We now know 4 new gene fragments create the furin cleavage site which massively improves the virus ability to bind to the host cell.
- We know no other betacoronavirus has a furin cleavage site.
- We know the four new gene fragments matched HIV-1.
- We know HIV-1 has a furin cleavage site.
Put all that together and what you get is the answer to the question of origin. SARS-CoV-2 is the SARS virus upgraded with the addition of the furin cleavage site from HIV-1 and then renamed SARS-CoV-2. How does that happen? Bio engineering and they knew this since day 1 which is why they tried to cover it up.
Sources/Further Reading
Uncanny similarity of unique inserts in the 2019-nCoV spike protein to HIV-1 gp120 and Gag
The origin of SARS-CoV-2 furin cleavage site remains a mystery
Furin cleavage of the HIV-1 Tat protein
there doesn't seem to be anything here