期刊
BRIEFINGS IN BIOINFORMATICS
卷 22, 期 6, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/bib/bbab253
关键词
orthologous gene; functional divergence; microRNAs; drug targets
资金
- National Key RD Program [2020YFC2004704]
- PKU-Baidu Fund [2019BD014]
- National Natural Science Foundation of China [81970440, 62025102, 81921001, 82025008]
- Peking University Basic Research Program [BMU2020JC001]
The proposed functional divergence score (FDS) algorithm can effectively evaluate the functional differences between human and mouse orthologous genes, helping to uncover gene expression divergence and distinguish successful and failed drug targets.
Animal models have a certain degree of similarity with human in genes and physiological processes, which leads them to be valuable tools for studying human diseases and for assisting drug development. However, translational researches adopting animal models are largely restricted by the species heterogeneity, which is also a major reason for the failure of drug research. Currently, computational method for exploring the functional differences between orthologous genes is still insufficient. For this purpose, here, we presented an algorithm, functional divergence score (FDS), by comprehensively evaluating the functional differences between the microRNAs regulating the paired orthologous genes. Given that mouse is one of the most popular model animals, currently, FDS was designed to dissect the functional divergence of orthologous genes between human and mouse. The results showed that gene FDS value is significantly associated with gene evolutionary characteristics and can discover expression divergence of human-mouse orthologous genes. Moreover, FDS performed well in distinguishing the targets of approved drugs and the failed ones. These results suggest that FDS is a valuable tool to evaluate the functional divergence of paired human and mouse orthologous genes. In addition, for each orthologous gene pair, FDS can provide detailed differences in functions and phenotypes. Our study provided a useful tool for quantifying the functional difference between human and mouse, and the presented framework is easily to be extended to the orthologous genes between human and other species. An online server of FDS is available at http://www.cuilab.cn/fds/.
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