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Chemical biology & drug design 2013-Jul

Validation of formylchromane derivatives as protein tyrosine phosphatase 1B inhibitors by pharmacophore modeling, atom-based 3D-QSAR and docking studies.

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Krækjan er vistuð á klemmuspjaldið
Priyanka Malla
Rajnish Kumar
Manoj Kumar

Lykilorð

Útdráttur

Formylchromane derivatives were reported to possess irreversible and selective inhibition on human protein tyrosine phosphatase 1B (PTP 1B). Inhibition of PTP 1B is a molecular level legitimate approach for the management of type 2 diabetes mellitus (T2DM). 3D-QSAR studies were performed on a series of formylchromane derivatives using partial least square (PLS) analysis for correlating molecular architecture of the analogs with their PTP 1B inhibitory activity. A five-point pharmacophore hypothesis with three hydrogen bond acceptors (A) and two aromatic rings (R) as pharmacophoric features was developed using phase module of Schrödinger suite. The hypothesis AAARR.160 was considered as best hypothesis in this study characterized by survival score (3.483), the best cross-validated r² (Q²) (0.774), regression coefficient (0.960), Pearson-R (0.891), and F value (100.3). The results of hypothesis AAARR.160 complimented very closely to interactions witnessed in active site of the ligand-bound complex. The molecular docking simulations into PTP 1B active site also highlighted that biphenyl moiety favorably interacted with amino acid residues lining the lipophilic pocket, and provided hydrophobic interactions with receptor active site. These observations might be useful for further development and optimization of new chemical entities as potential PTP 1B inhibitors prior to its synthesis.

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