PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
34352100-6	2021	Substitutions of the invariant NiRAN residues abolish NMPylation, whereas substitution of a catalytic RdRp Asp residue does not.	Aspartic Acid	107-110	ORF1a polyprotein;ORF1ab polyprotein	Severe acute respiratory syndrome coronavirus 2	102-106