Table 1 Results of docking simvastatin, alpha asarone, and HMG-CoA at the active site of HMGR of Candida glabrata (CgHMGR).

From: Point mutations in Candida glabrata 3-hydroxy-3-methylglutaryl-coenzyme A reductase (CgHMGR) decrease enzymatic activity and substrate/inhibitor affinity

Protein

Compound

Binding energy ΔG (kcal/mol)

Residues interacting with the ligand

Polar interactions

Hydro-phobic interactions

Wild-type CgHMGR

Simvastatin

− 10.71

Glu97, Met193, Asp307

Glu97, Met193, Asp307

Met193

Alpha-asarone

− 6.4

Thr96, Glu9, Ala192, Met193, Met197, Gly305, Gln306, Gln310, Thr346

Glu97, Gln306,Thr346

Ala192, Met197

HMG-CoA

− 6.48

Asp128, Lys231, Lys275, Asn407

Lys231, Lys275, Asn407

Asp128

CgHMGR E680Q

Simvastatin

− 10.18

Ala192, Met193, Asn196, Asp307, Gly344, Gy345, His403

Asn196, Asp307

Ala192, His403

Alpha-asarone

− 5.81

Asp230, Lys231, Lys275, Asn290, Ser315

Asp230, Asn290, Ser315

Lys275

HMG-CoA

− 6.31

Arg128, Ser224, Asp230, Lys231, Lys232, Lys275

Ser224, Asp230

Lys232, Lys275

CgHMGR E711Q

Simvastatin

− 7.1

Gly98, Arg128, Lys231, His292, Asn295, Leu390, Leu394, Leu399

Gly98, Arg128, His292, Asn295, Leu399, His403

Lys231, Leu390

Alpha-asarone

− 5.7

Lys231, Lys232, Pro233, Gly288, Ala294, Ser315, Asn316

Gly288, Ser315

Lys232, Pro233, Ala294, Asn316

HMG-CoA

− 6.05

Arg128, Ser224, Asn226, Lys232, Lys275

Ser224, Lys232, Lys275

Arg128, Lys232

CgHMGR D805A

Simvastatin

− 9.54

Leu74, Leu302, Asp307

Asp307

Leu74, Leu302

Alpha-asarone

− 6.33

Arg128, Ser199, Leu399, His403, Met404, Val498

Arg128, Ser199

Leu399, His403, Val498

HMG-CoA

− 6.26

Asn196, Ser199, Lys200, Glu203, His403, Arg408

Glu203, Ser199, His403

Glu203, His403

CgHMGR M807R

Simvastatin

− 9.78

Glu97, Arg128, Val223, Asp230, Asn295, Leu399, Val400, His403

Glu97, Asp230

Val223, Val400

Alpha-asarone

− 6.86

Glu97, Lys231, Lys232, Ala293, Ala294, Asn295

Lys232

Glu97, Lys232, Ala293, Ala294, Asn295

HMG-CoA

− 6.35

Arg106, Leu399, His403

Arg106, Leu399, His403

CgHMGR E680Q-M807R

Simvastatin

− 7.36

Ala63, Cys64, Glu97, Asp307, Arg408

Glu97, Asp307

Ala63, Cys64, Arg408

Alpha-asarone

− 5.8

Lys231, Pro233, Val286, Ala294

Lys231, Pro233, Val286, Ala294

HMG-CoA

− 6.13

Cys65, Val68, Ile69, Tyr71, Thr95, Thr96

Cys65, Val68, Ile69, Tyr71, Thr95, Thr96