Fig. 1.

700 MHz ¹H,¹⁵N-HSQC assigned spectrum of the ¹³C,¹⁵N-labelled SARS-CoV-2 SUD-N nsP3c at 1 mM concentration in 50 mM NaPi pH 7.2, 50 mM NaCl, 2 mM EDTA, 2 mM DTT and 10% D₂O acquired at 298 K. Amino acid numbering is according to the sequence of the multi-domain non-structural protein 3 (nsP3)