The present invention provides a live, attenuated coronavirus comprising a variant replicase gene encoding polyproteins comprising a mutation in one or more of non-structural protein(s) (nsp)-10, nsp-14, nsp-15 or nsp-16. The coronavirus may be used as a vaccine for treating and/or preventing a disease, such as infectious bronchitis, in a subject.
NSP- 10, 14, 15 and 16.
I am compiling data from new papers coming out that examine the protein sites, and their mutations expressed in COVID-19.
Here's the patent: http://patents.google.com/patent/US10130701B2/en
Wish I could understand a lot of this LOL

Realist - Everybody in America is soft, and hates conflict. The cure for this, both in politics and social life, is the same -- hardihood. Give them raw truth.