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. 2021 Aug 4;28:18. doi: 10.1186/s40709-021-00149-2

Table 3.

Possible binding sites of NSP5 against known anti-viral drugs.

Drugs Total binding sites (6M03) NSP5 of COVID-19
Amphetamine Known similar target molecule Polymerase polyprotein, HIV-1
Binding properties 1 1 Superposition type L
RMSD 0.93 Å
Amino acid targets of drug

122 PRO

120 GLY

28 ASN

No. of residues in known binding 16
Human similar targets 0
Darunavir Known similar target molecule HIV-1 protease
Binding properties 2 1 Superposition type L
RMSD 1.06 Å
Amino acid targets of drug

109 GLY

200 ILE

293 PRO

No. of residues in known binding 26
Human similar targets 0
2 Superposition type R
RMSD 0.76 Å
Amino acid targets of drug

133 ASN

195 GLY

194 ALA

No. of residues in known binding 26
Human similar targets 2
Indinavir Known similar target molecule

Protease retropepsin,

HIV-1

Binding properties 1 1 Superposition type L
RMSD 0.81 Å
Amino acid targets of drug

106 ILE

109 GLY

200 ILE

No. of residues in known binding 22
Human similar targets 4
Nelfinavir Known similar target molecule

Protease retropepsin,

HIV-1

Binding properties 1 1 Superposition type L
RMSD 1.05 Å
Amino acid targets of drug

153 ASP

292 THR

293 PRO

No. of residues in known binding 30
Human similar targets 13
Nevirapine Known similar target molecule

Reverse transcriptase,

HIV-1

Binding properties 1 1 Superposition type R
RMSD 1.10 Å
Amino acid targets of drug

88 LYS

86 VAL

30 LEU

No. of residues in known binding 7
Human similar targets 13
Ribavirin Known similar target molecule

RNA polymerase,

Norwalk virus

Binding properties 1 1 Superposition type L
RMSD 1.06 Å
Amino acid targets of drug

198 THR

199 THR

238 ASN

No. of residues in known binding 9
Human similar targets 2
Rimantadine Known similar target molecule

M2 protein,

Influenza A

Binding properties 3 1 Superposition type R
RMSD 0.95 Å
Amino acid targets of drug

255 ALA

254 SER

251 GLY

No. of residues in known binding 9
Human similar targets 0
2 Superposition type L
RMSD 0.88 Å
Amino acid targets of drug

255 ALA

254 SER

258 GLY

No. of residues in known binding 9
Human similar targets 0
3 Superposition type L
RMSD 1.00 Å
Amino acid targets of drug

285 ALA

284 SER

283 GLY

No. of residues in known binding 9
Human similar targets 0
Ritonavir Known similar target molecule

Polymerase polyprotein,

HIV-1

Binding properties 1 1 Superposition type L
RMSD 0.82 Å
Amino acid targets of drug

106 ILE

109 GLY

200 ILE

No. of residues in known binding 18
Human similar targets 4
Tipranavir Known similar target molecule

Protease,

HIV-1

Binding properties 1 1 Superposition type L
RMSD 1.17 Å
Amino acid targets of drug

94 ALA

34 ASP

33 ASP

No. of residues in known binding 27
Human similar targets 3

Features of different drug binding motifs. HIV-1 Human Immunodeficiency virus 1, RMSD Root Mean Square Deviation, Å angstrom, ILE isoleucine, GLY glycine, VAL valine, LEU leucine, PRO proline, ASP aspartic acid, ASN asparagine, ALA alanine, THR threonine, LYS lysine, SER serine