Yamada Takuji, Kawashima Shuichi, Mamitsuka Hiroshi, Goto Susumu, Kanehisa Minoru
Bioinformatics Center, Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan.
Genome Inform. 2005;16(1):150-8.
The lethality of a gene is a fundamental and representative measure for understanding the function of a gene and its associated bio-systems. Recently, many research groups have started focusing on the concept of synthetic lethality. The synthetic lethality between genes is defined by the combination of mutations in two genes causing cell death. Here, we confirm that synthetic lethality and cellular location have close relationships among the Saccharomyces cerevisiae genes. Furthermore, we attempt the prediction of candidate gene pairs with synthetic lethality. The prediction is based on the hierarchical aspect model (HAM) which learns from a data set of cellular location to estimate a likelihood value indicating the synthetic lethality between genes.
基因的致死性是理解基因功能及其相关生物系统的一项基本且具有代表性的指标。最近,许多研究小组开始关注合成致死性的概念。基因之间的合成致死性是由两个基因中的突变组合导致细胞死亡来定义的。在此,我们证实了酿酒酵母基因中合成致死性与细胞定位之间存在密切关系。此外,我们尝试预测具有合成致死性的候选基因对。该预测基于层次方面模型(HAM),该模型从细胞定位数据集进行学习,以估计表示基因之间合成致死性的似然值。