An in silico evaluation of the ADMET profile of the StreptomeDB database
Abstract
BACKGROUND: Computer-aided drug design (CADD) often involves virtual screening (VS) of large compound datasets and the availability of such is vital for drug discovery protocols. This paper presents an assessment of the "drug-likeness" and pharmacokinetic profile of > 2,400 compounds of natural origin, currently available in the recently published StreptomeDB database. METHODS: The evaluation of "drug-likeness" was performed on the basis of Lipinski's "Rule of Five", while 46 computed physicochemical properties or molecular descriptors were used to predict the absorption, distribution, metabolism, elimination and toxicity (ADMET) of the compounds. RESULTS: This survey demonstrated that, of the computed molecular descriptors, about 28% of the compounds within the StreptomeDB database were compliant, having properties which fell within the range of ADMET properties of 95% of currently known drugs, while about 44% of the compounds had ≤ 2 violations. Moreover, about 50% of the compounds within the corresponding "drug-like" subset showed compliance, while >83% of the "drug-like" compounds had ≤ 2 violations. CONCLUSIONS: In addition to the previously verified range of measured biological activities, the compounds in the StreptomeDB database show interesting DMPK profiles and hence could represent an important starting point for hit/lead discovery from natural sources. The generated data are available and could be highly useful for natural product lead generation programs.
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