Hello, researchers! Do you have any protein extraction protocols or tips that I could use for extracting SARS-CoV-2 spike and nucleocapsid proteins? I already know that a lot of protocols are virus dependent and that people use salts.

Considering clinical samples are in swabs and in transport medium for COVID19 real-time PCR diagnostic too, should we do a pre-treatment or something, before starting the extraction? What do you suggest?

I appreciate the help right away :)