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Table 3 Binding free energy calculation using Prime/MM-GBSA approach

From: Activity of phytochemical constituents of Curcuma longa (turmeric) and Andrographis paniculata against coronavirus (COVID-19): an in silico approach

Compd

MMGBSA_dG_Bind

MMGBSA

_dG_Bind_

Coulomb

MMGBSA

_dG_Bind_

Covalent

MMGBSA_dG_Bind

Hbond

MMGBSA

_dG_Bind_

Lipo

MMGBSA_dG_Bind_vdW

T4_Cyclocurcumin

− 36.0315

− 31.6404

8.0570

− 0.1385

− 11.6120

− 28.1951

N1_Andrographolide

− 34.6766

− 28.4227

6.9893

− 1.9077

− 4.4014

− 28.5162

N7_diOHdiOMeflavone

− 50.6953

− 41.1895

1.6877

− 1.5594

− 8.5302

− 26.2631

T1_Curcumin

− 50.3408

− 18.0802

1.5801

− 2.6563

− 11.9153

− 42.2597

T3_BisdeOMecurcumin

− 43.5559

− 22.2542

− 1.599

0.5231

− 11.2505

− 35.4184

T2_Demethoxycurcumin

− 38.7071

− 9.1482

6.6291

− 1.3511

− 11.0807

− 42.2478

T7_Curcuphenol

− 26.1402

− 11.4548

14.9959

0.0274

− 17.0435

− 27.3193

N3_14deoxy12OHandrographolide

− 29.3622

− 5.8525

− 9.0786

0.1215

− 10.4797

− 33.9966

T6_Curlone

− 22.3669

− 23.7502

2.6632

− 0.3572

− 9.3057

− 17.1282

N2_14deoxyandrographolide

− 39.6148

− 17.6018

7.7512

− 1.4333

− 14.1630

− 35.8594

T5_Turmerone

− 24.1033

14.8710

− 12.9950

3.1283

− 8.2392

− 37.1469

N8_cinnamateester

− 30.7961

6.1548

1.5202

0.4830

− 10.6485

− 41.1941

N5_Stigmasterol

− 31.5416

18.6211

− 6.1436

2.5054

− 15.3476

− 41.7355

N6_βSitosterylfattyacidesters

1.1272

27.1428

− 0.7667

3.0617

− 5.4991

− 29.3366

N4_betaSitosterol

− 25.0588

− 5.7182

1.8587

1.9414

− 10.8267

− 31.8647

Hydroxychloroquine (std)

− 26.9975

− 4.9621

2.1824

0.0011

-9.2894

− 33.0622