替代拼接在血液构造系承诺的功能性景观
Xiao Hu1, Jinrui Wang1, Li Chen2
1Department of Laboratory Medicine, West China Second University Hospital. Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China.
Nature communications
|January 27, 2026
概括
替代拼接 (AS) 在脊椎动物中产生各种蛋白质. 我们开发了一种机器学习工具FAScore,用于识别血液形成中的功能性AS事件,揭示了血液细胞发育中的新角色.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 发展生物学 发展生物学
背景情况:
- 替代拼接 (AS) 在脊椎动物中显著扩大蛋白质组,但其在血液形成中的作用尚不清楚.
- 特定于物种和细胞系的拼接变体对于理解脊椎动物发育至关重要.
研究的目的:
- 开发一种计算工具,用于识别血液形成分化过程中蛋白质编码基因中的功能性外跳转 (ES) 事件.
- 为了研究AS对脊椎动物的功能影响.
主要方法:
- 来自六种脊椎动物和人类/小鼠血液构成差异的精选转录基因数据.
- 开发了一种机器学习模型 (FAScore),使用19个特征 (例如表达式,结构,保存) 来预测功能AS.
- 研究了在红色发育和骨髓发育中发现的AS事件的功能后果.
主要成果:
- 确定了四种新的功能性AS事件,影响了红色发育和骨髓发育.
- 证明了TBC1D23外因子15的删除会损害小鼠和斑马鱼的红色素形成.
- 阐明了一种涉及RANBP2/RANGAP1结合和HDAC1 SUMOylation的机制.
结论:
- FAScore 是一种有价值的工具,用于识别血液构造系承诺中的功能ES事件.
- 这项研究为应用计算方法来研究AS在其他生物过程中的研究提供了一个框架.
- 发现了新的AS事件,在脊椎动物血细胞发育中起着重要作用.
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