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Table 2 Compounds (SKYaSKYg), docking score, interacting residues and close contact residues

From: 4-Thiazolidinone coumarin derivatives as two-component NS2B/NS3 DENV flavivirus serine protease inhibitors: synthesis, molecular docking, biological evaluation and structure–activity relationship studies

Comp

Docking score

Interacting residues

Close contact residues

SKYa

− 2.754

HIS51, ASP75, TYR150, GLY151, ASN152, GLY153, SER135, PRO132, SER131, PHE130, LEU128

SKYb

− 2.960

HIS51 (H bond) and (two π-cation)

ASP75, VAL154, GLY153, ASN152, GLY151, TYR150, HIS51, LEU128, PHE130, SER131, PRO132, SER135

SKYc

− 3.905

GLY153 (H bond), PHE130 (H bond), HIS51 (π–π stacking and π-cation)

HIS51, GLY153, GLY151, TYR150, LEU128, PHE130, SER131, PRO132, SER135

SKYd

− 3.964

PHE130 (H bond), HIS51 (π–π stacking and π-cation)

HIS51, GLY153, GLY151, TYR150, LEU128, PHE130, SER131, PRO132, SER135

SKYe

− 3.889

GLY153 (H Bond), PHE130 (H Bond), HIS51 (π–π stacking and π-cation)

GLY153, GLY151, TYR150, LEU128, PHE130, SER131, PRO132, SER135

SKYf

− 4.014

GLY153 (H bond), PHE130 (H bond), HIS51 (π–π stacking and π-cation)

HIS51, ASP75, GLY153, ASN152, GLY151, TYR150, LEU, PHE130, SER131, PRO132, THR134, SER135

SKYg

− 2.992

GLY151 and LEU128 (H bond)

HIS51, ASP75, GLY153, ASN152, GLY151, TYR150, SER135, PRO132, SER131, PHE130, ASP129, LEU128