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雅克的GHR基因促进体的鉴定和表征

Xiaoyun Wu¹, Min Chu¹, Yilin Shi¹

¹Key Laboratory of Animal Genetics and Breeding On Tibetan Plateau, Ministry of Agriculture and Rural Affairs, Key Laboratory of Yak Breeding Engineering, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.

Scientific reports

|December 1, 2025

概括

研究人员确定了雅克生长激素受体 (GHR) 基因的最小核心促进区,并证实KLF5是调节其表达的关键转录因子,为动物生长调节提供了洞察力.

科学领域:

动物遗传学和分子生物学
基因调节和基因表达.
雅克人的生理和生长.

背景情况:

动物的生长和发育受到生长激素受体 (GHR) 的关键调节.
了解雅克GHR基因的转录调节对于阐明雅克的生长机制至关重要.
邻近促进器区域在控制基因表达方面发挥着至关重要的作用.

研究的目的:

为了阐明雅克GHR基因的转录调节机制.
为了确定雅克GHR基因的最小核心促进子区域.
研究转录因子,特别是KLF5在调节雅克GHR基因表达中的作用.

主要方法:

雅克GHR近位促进区域的克隆和删除分析.
双露西法酶记者试验以确定促进体活性.
生物信息分析用于预测转录启动地点和CpG岛屿.
针对位点的突变发生和电泳性移动性转移试验 (EMSA) 来确认转录因子的结合和功能.

主要成果:

在雅克GHR基因的上游调控区域中,确定了两个转录启动位点和CpG岛屿.
最小的核心促进区域被确定为-160至+27bp的碎片.
据预测,转录因子KLF5会与最小核心促进体结合,并被证实是雅克GHR基因表达的关键调节者.

结论:

-160到+27bp区域作为雅克GHR基因的最小核心促进器.
KLF5是雅克GHR基因的显著转录调节者,影响肌肉生长和发育.
这项研究为进一步研究雅克GHR基因表达的调节机制提供了基础的理解.

关键词:

在 GHR 基因中,GHR 基因在KLF5KLF5KLF5KLF5 活动主办人活动主办人活动雅克雅克雅克雅克是什么意思

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