Ciro Santilli Envelope.
As shown at pubmed.ncbi.nlm.nih.gov/16877062/#&gid=article-figures&pid=fig-3-uid-2 has transmembrane domain.
Membrane.
As shown at pubmed.ncbi.nlm.nih.gov/16877062/#&gid=article-figures&pid=fig-3-uid-2 has transmembrane domain.
Spike.
Nucleocapsid phosphoprotein, sticks to the RNA inside.
www.nature.com/articles/s41467-020-20768-y mentions functions:
- helps pack the viral RNA into the capsule
- also has a side function in immune suppression
These are also required for test tube replication.
Mentioned at: cen.acs.org/biological-chemistry/infectious-disease/know-novel-coronaviruss-29-proteins/98/web/2020/04
The RdRp, since this is a Positive-strand RNA virus.
Unlike SARS-CoV-2 non-structural protein, these are not needed for test tube reproduction. They must therefore be for host modulation.