The pigment of purple sweet potato(PPSP)is water-soluble natural pigment.

紫心番薯色素（PPSP）为水溶性天然色素。

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For example, we construct GPS and PPSP for phosphorylation site prediction, based on GPS and Bayesian Decision Theory algorithms, respectively.

例如，我们使用GPS和贝叶斯决策理论算法，分别构建了预测蛋白质磷酸化位点的GPS和PP SP网站。

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