Novel Application of 2D and 3D-Similarity Searches To Identify Substrates among Cytochrome P450 2C9, 2D6, and 3A4
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
20/10/2012
20/10/2012
2010
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Resumo |
Cytochrome P450 (CYP450) is a class of enzymes where the substrate identification is particularly important to know. It would help medicinal chemists to design drugs with lower side effects due to drug-drug interactions and to extensive genetic polymorphism. Herein, we discuss the application of the 2D and 3D-similarity searches in identifying reference Structures with higher capacity to retrieve Substrates of three important CYP enzymes (CYP2C9, CYP2D6, and CYP3A4). On the basis of the complementarities of multiple reference structures selected by different similarity search methods, we proposed the fusion of their individual Tanimoto scores into a consensus Tanimoto score (T(consensus)). Using this new score, true positive rates of 63% (CYP2C9) and 81% (CYP2D6) were achieved with false positive rates of 4% for the CYP2C9-CYP2D6 data Set. Extended similarity searches were carried out oil a validation data set, and the results showed that by using the T(consensus) score, not only the area of a ROC graph increased, but also more substrates were recovered at the beginning of a ranked list. CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) FAPESP (Fundacao de Amparo Pesquisa do Estado de Sao Paulo) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) |
Identificador |
JOURNAL OF CHEMICAL INFORMATION AND MODELING, v.50, n.1, p.97-109, 2010 1549-9596 http://producao.usp.br/handle/BDPI/31887 10.1021/ci900074t |
Idioma(s) |
eng |
Publicador |
AMER CHEMICAL SOC |
Relação |
Journal of Chemical Information and Modeling |
Direitos |
restrictedAccess Copyright AMER CHEMICAL SOC |
Palavras-Chave | #DRUG-METABOLISM #SIMILARITY #PREDICTION #P450 #DOCKING #PROTEIN #METRICS #MODELS #SHAPE #SITE #Chemistry, Multidisciplinary #Computer Science, Information Systems #Computer Science, Interdisciplinary Applications |
Tipo |
article original article publishedVersion |