Journal
JOURNAL OF CHEMICAL INFORMATION AND MODELING
Volume 46, Issue 5, Pages 2003-2014Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ci060138m
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We introduce a family of positive definite kernels specifically optimized for the manipulation of 3D structures of molecules with kernel methods. The kernels are based on the comparison of the three-point pharmacophores present in the 3D structures of molecules, a set of molecular features known to be particularly relevant for virtual screening applications. We present a computationally demanding exact implementation of these kernels, as well as fast approximations related to the classical fingerprint-based approaches. Experimental results suggest that this new approach is competitive with state-of-the-art algorithms based on the 2D structure of molecules for the detection of inhibitors of several drug targets.
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