Table 4.

Distances of inter-nsp7 nsp8-I crosslinks mapped to available SARS-CoV-2 apo polymerase complex structures composed of nsp7, nsp8, and nsp12.

nsp7 position	nsp8 position	PDB: 6YHU	PDB: 7BV1	PDB: 7BW4	PDB: 7BTF	PDB: 6M71
		Distance (Å)	Distance (Å)	Distance (Å)	Distance (Å)	Distance (Å)
27	79	29.3	NF	NF	NF	NF
27	196	NF	NF	NF	NF	NF
27	127	16.9	17.1	16.3	17.2	NF
70	79	18.5	NF	NF	NF	NF
7	79	26.8	NF	NF	NF	NF
43	79	37.3	NF	NF	NF	NF
57	97	17.9	17.7	18.0	17.9	18.2
7	97	13.0	13.3	13.5	13.2	13.0
2	97	9.4	10.2	10.8	10.1	10.5