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Table 12 Binding affinity, interaction type, bond type and distances in some complexes

From: QSAR, molecular docking studies, ligand-based design and pharmacokinetic analysis on Maternal Embryonic Leucine Zipper Kinase (MELK) inhibitors as potential anti-triple-negative breast cancer (MDA-MB-231 cell line) drug compounds

Complex

Binding affinity (kcal/mol)

Amino acid

Bond type

Interaction

Bond Distance(A0)

9

−9.3

THR19

Hydrogen Bond

Conventional Hydrogen Bond

2.74925

  

GLY21

Hydrogen Bond; Halogen

Conventional Hydrogen Bond; Halogen (Fluorine)

2.4619

  

ARG53

Hydrogen Bond; Halogen

Conventional Hydrogen Bond; Halogen (Fluorine)

2.98056

  

CYS89

Hydrogen Bond

Conventional Hydrogen Bond

3.34925

  

GLY18

Hydrogen Bond

Carbon Hydrogen Bond

3.35524

  

ILE17

Hydrogen Bond

Carbon Hydrogen Bond

3.59598

  

ASP150

Halogen

Halogen (Fluorine)

3.33001

  

ASP150

Electrostatic

Pi-Anion

4.20988

  

PHE22

Hydrophobic

Pi-Pi T-shaped

5.96743

  

ILE17

Hydrophobic

Alkyl

5.00307

  

VAL25

Hydrophobic

Alkyl

5.43404

  

LEU139

Hydrophobic

Alkyl

4.42983

  

ILE17

Hydrophobic

Alkyl

3.89836

  

PHE22

Hydrophobic

Pi-Alkyl

5.15308

  

TYR88

Hydrophobic

Pi-Alkyl

4.67658

  

ALA23

Hydrophobic

Pi-Alkyl

4.44028

2

−9.3

LYS134

Hydrogen Bond

Conventional Hydrogen Bond

1.91438

  

GLY18

Hydrogen Bond

Carbon Hydrogen Bond

3.50504

  

ASP150

Hydrogen Bond

Carbon Hydrogen Bond

3.40604

  

THR19

Hydrogen Bond

Carbon Hydrogen Bond

3.35007

  

PHE22

Hydrophobic

Pi-Sigma

3.72576

  

ALA23

Hydrophobic

Alkyl

3.10836

  

ALA38

Hydrophobic

Alkyl

4.3497

  

ILE17

Hydrophobic

Alkyl

5.0501

  

VAL25

Hydrophobic

Alkyl

4.61294

  

LEU139

Hydrophobic

Alkyl

4.86094

  

VAL25

Hydrophobic

Pi-Alkyl

4.17368

  

ALA38

Hydrophobic

Pi-Alkyl

4.84776

  

LEU86

Hydrophobic

Pi-Alkyl

5.45664

  

ILE149

Hydrophobic

Pi-Alkyl

4.54951

17

−8.9

GLY21

Hydrogen Bond

Conventional Hydrogen Bond

2.62202

  

ILE17

Hydrophobic

Pi-Sigma

3.47363

  

ILE17

Hydrophobic

Alkyl

4.41825

  

LEU139

Hydrophobic

Pi-Alkyl

5.25912