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Table 2 Molecular interactions predicted by docking short β-D-Glucan structures on dimeric mouse Dectin-1

From: Neem leaf glycoprotein binding to Dectin-1 receptors on dendritic cell induces type-1 immunity through CARD9 mediated intracellular signal to NFκB

Protein

Dectin-1 (Dimeric) of Mus musculus (2BPE from RCSB PDB)

Small molecule

β-D-Glc-(1 → 3)-[β-D-Glc-(1 → 6)]-β-D-Glc-(1 → 3)-β-D-Glc

β-D-Glc-(1 → 3)-β-D-Glc-(1 → 3)-β-D-Glc-(1 → 3)-β-D-Glc

β-D-Glc-(1 → 4)-β-D-Glc-(1 → 4)-β-D-Glc

Details

RMSD

91.03

RMSD

93.40

RMSD

43.81

Binding energy

-9.11 kcal/Mol

Binding energy

-9.16 kcal/Mol

Binding energy

-3.92 kcal/Mol

Inhibition constant (Ki)

211.70 nM

Inhibition constant (Ki)

192.34 nM

Inhibition constant (Ki)

1.34 mM

H-bonds formed

6

7

11

Interacting amino acids of Dectin-1

Asn122(A), Phe133(A), Phe135(A), His173(A), Ile175(A) & Asn176(A)

Asn122(B), Trp123(B), Leu132(B), Ser134(B), Ser136(B), His146(B) & His173(B)

Gly151(A), Ala152(A), His153(A), Leu154(A), Glu194(A), Glu243(A), Ser148(B), Glu194(B) & Asp195(B)

(Where A and B are the monomeric subunits of dimeric Dectin-1)

  1. Abbreviations: RCSB Research Collaboratory for Structural Bioinformatics, PDB Protein Data Bank, Glc Glucan, RMSD Root Mean Square Deviation