Institute of Biotechnology, Shiraz University, Shiraz, Iran.
Science and Research Branch, Islamic Azad university, Hamedan, Iran.
Sci Rep. 2018 Mar 22;8(1):5063. doi: 10.1038/s41598-018-23245-1.
In eukaryotes, different combinations of exons lead to multiple transcripts with various functions in protein level, in a process called alternative splicing (AS). Unfolding the complexity of functional genomics through genome-wide profiling of AS and determining the altered ultimate products provide new insights for better understanding of many biological processes, disease progress as well as drug development programs to target harmful splicing variants. The current available tools of alternative splicing work with raw data and include heavy computation. In particular, there is a shortcoming in tools to discover AS events directly from transcripts. Here, we developed a Windows-based user-friendly tool for identifying AS events from transcripts without the need to any advanced computer skill or database download. Meanwhile, due to online working mode, our application employs the updated SpliceGraphs without the need to any resource updating. First, SpliceGraph forms based on the frequency of active splice sites in pre-mRNA. Then, the presented approach compares query transcript exons to SpliceGraph exons. The tool provides the possibility of statistical analysis of AS events as well as AS visualization compared to SpliceGraph. The developed application works for transcript sets in human and model organisms.
在真核生物中,不同外显子的组合导致了在蛋白质水平上具有多种功能的多个转录本,这一过程称为可变剪接 (AS)。通过对 AS 的全基因组分析来揭示功能基因组学的复杂性,并确定改变的最终产物,为更好地理解许多生物学过程、疾病进展以及针对有害剪接变体的药物开发计划提供了新的见解。目前可用的可变剪接工具可用于处理原始数据,并包含大量计算。特别是,从转录本中直接发现 AS 事件的工具存在不足。在这里,我们开发了一个基于 Windows 的用户友好型工具,用于从转录本中识别 AS 事件,而无需任何高级计算机技能或数据库下载。同时,由于采用在线工作模式,我们的应用程序采用了更新的 SpliceGraphs,而无需任何资源更新。首先,SpliceGraph 基于前体 mRNA 中活性剪接位点的频率形成。然后,所提出的方法将查询转录本外显子与 SpliceGraph 外显子进行比较。该工具提供了对 AS 事件以及与 SpliceGraph 相比的 AS 可视化进行统计分析的可能性。开发的应用程序适用于人类和模式生物的转录本集。