Table 3.

Binding interaction of different bioactive herbal ligands with the active site of SARS-CoV-2 NSP15 endoribonuclease (PDB ID: 6W01).

S. No.	Ligand	Interaction (PDB-6M0J)
		H-Bonding	No. of H-Bond
			HBD	HBA
1	Asparoside-C	Glu 234, Gly 230, Val 292, Hip 235, Asp 240	5	3
2	Asparoside-F	Glu 234, Gly 230, Ala 232, Hip 235, Asp 240, Glu 340, Val 339	5	3
3	Asparoside-D	Glu 340, His 243, Gln 245, Asp 240, Asn 278, Leu 346	6	1
4	Rutin	Asp 240, Gln 245, Hip 235, Hip 250, Glu 340	4	3
5	Racemoside-A	Thr 341, Hip 235, Glu 340, Hip 250	3	3
6	Remdesivir	Val 292, Hip 235, Thr 341	1	2

H-Bond: Hydrogen Bonding, HBD: Hydrogen bond donor, HBA: Hydrogen bond acceptor in respect to ligand.