3CL-Pro (or M-Pro) is the SARS-CoV-2 main protease,  responsible for the cleavage of the large polyprotein 1ab transcript and the liberation of eleven proteins , responsible for viral growth and replication.
<meaning-changed> 3CL-Pro (or M-Pro) is the SARS-CoV-2 main protease,  responsible for the cleavage of the large polyprotein 1ab transcript and the liberation of eleven proteins , responsible for viral growth and replication.
3CL-Pro (or M-Pro) is the SARS-CoV-2 main protease, acting as a homodimer, is responsible for the cleavage of the large polyprotein 1ab transcript and the liberation of eleven proteins , responsible for viral growth and replication.