Title
Predicting substrates of the human breast cancer resistance protein using a support vector machine method.
Abstract
Human breast cancer resistance protein (BCRP) is an ATP-binding cassette (ABC) efflux transporter that confers multidrug resistance in cancers and also plays an important role in the absorption, distribution and elimination of drugs. Prediction as to if drugs or new molecular entities are BCRP substrates should afford a cost-effective means that can help evaluate the pharmacokinetic properties, efficacy, and safety of these drugs or drug candidates. At present, limited studies have been done to develop in silico prediction models for BCRP substrates. In this study, we developed support vector machine (SVM) models to predict wild-type BCRP substrates based on a total of 263 known BCRP substrates and non-substrates collected from literature. The final SVM model was integrated to a free web server.We showed that the final SVM model had an overall prediction accuracy of ~73% for an independent external validation data set of 40 compounds. The prediction accuracy for wild-type BCRP substrates was ~76%, which is higher than that for non-substrates. The free web server (http://bcrp.althotas.com) allows the users to predict whether a query compound is a wild-type BCRP substrate and calculate its physicochemical properties such as molecular weight, logP value, and polarizability.We have developed an SVM prediction model for wild-type BCRP substrates based on a relatively large number of known wild-type BCRP substrates and non-substrates. This model may prove valuable for screening substrates and non-substrates of BCRP, a clinically important ABC efflux drug transporter.
Year
DOI
Venue
2013
10.1186/1471-2105-14-130
BMC Bioinformatics
Keywords
Field
DocType
bioinformatics,microarrays,algorithms
Abcg2,ATP-binding cassette transporter,Biology,Transporter,Multiple drug resistance,Bioinformatics,Drug,DNA microarray,Efflux,In silico
Journal
Volume
Issue
ISSN
14
1
1471-2105
Citations 
PageRank 
References 
8
0.42
4
Authors
6
Name
Order
Citations
PageRank
Eszter Hazai1222.80
Istvan Hazai280.76
Isabelle Ragueneau-Majlessi381.10
Sophie P Chung480.42
Zsolt Bikádi581.44
Qingcheng Mao680.42