GRIFFIN: a system for predicting GPCR-G-protein coupling selectivity using a support vector machine and a hidden Markov model.
GRIFFIN: a system for predicting GPCR-G-protein coupling selectivity using a support vector machine and a hidden Markov model.
复制标题
Griffin:使用支持向量机和隐藏的Markov模型预测GPCR-G蛋白耦合选择性的系统。
DOI:
10.1093/nar/gki495
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发表时间:
2005-07-01
影响因子:
14.9
通讯作者:
Suwa, M
中科院分区:
文献类型:
--
作者:
Yabuki, Y;Muramatsu, T;Hirokawa, T;Mukai, H;Suwa, M
We describe a novel system, GRIFFIN (G-protein and Receptor Interaction Feature Finding INstrument), that predicts G-protein coupled receptor (GPCR) and G-protein coupling selectivity based on a support vector machine (SVM) and a hidden Markov model (HMM) with high sensitivity and specificity. Based on our assumption that whole structural segments of ligands, GPCRs and G-proteins are essential to determine GPCR and G-protein coupling, various quantitative features were selected for ligands, GPCRs and G-protein complex structures, and those parameters that are the most effective in selecting G-protein type were used as feature vectors in the SVM. The main part of GRIFFIN includes a hierarchical SVM classifier using the feature vectors, which is useful for Class A GPCRs, the major family. For the opsins and olfactory subfamilies of Class A and other minor families (Classes B, C, frizzled and smoothened), the binding G-protein is predicted with high accuracy using the HMM. Applying this system to known GPCR sequences, each binding G-protein is predicted with high sensitivity and specificity (>85% on average). GRIFFIN () is freely available and allows users to easily execute this reliable prediction of G-proteins.
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影响因子:
5.8
作者:
Möller, S;Croning, MDR;Apweiler, R
通讯作者:
Apweiler, R
影响因子:
14.9
作者:
Horn, F;Bettler, E;Vriend, G
通讯作者:
Vriend, G
影响因子:
46.9
作者:
Drews, J
通讯作者:
Drews, J
影响因子:
5.8
作者:
Sreekumar, KR;Huang, YP;Gulukota, K
通讯作者:
Gulukota, K
DOI:
10.1073/pnas.85.8.2444
发表时间:
1988-04-01
影响因子:
11.1
作者:
PEARSON, WR;LIPMAN, DJ
通讯作者:
LIPMAN, DJ