与OXTR相关的增强剂的功能特征
Dianne Laboy Cintrón1,2, Rory R Sheng1,2, Nadav Ahituv1,2
1Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, 1700 4th St, Byers Hall, San Francisco, CA 94158, United States.
Human molecular genetics
|February 17, 2025
概括
研究人员确定了催产素受体 (OXTR) 的新型调节元素,这种基因对社会行为至关重要. 一个关键的增强剂,OCE7,在小鼠的嗅球中被发现活跃,为OXTR基因调节提供了新的见解.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 催产素受体 (OXTR) 调节关键的人类行为,包括社会联系,产妇护理和焦虑.
- 了解OXTR的调节元素对于破译遗传变异如何影响行为至关重要.
研究的目的:
- 为了识别和描述OXTR基因的cis调节元件 (cCREs).
- 在细胞和动物模型中研究这些cCREs的功能活性.
主要方法:
- 对来自小鼠和人类下丘脑的单细胞RNA/ATAC-seq数据进行分析,以确定候选OXTR cCREs.
- 露西法酶在下丘脑细胞系中进行测试,以测试增强剂的功能.
- 在小鼠体内进行增强剂测试,以确定活动模式和位置.
主要成果:
- 确定了七个候选OXTR cCREs.
- 其中三种cCREs在细胞系中表现出功能增强剂活性.
- 在不同发育阶段,OXTR候选增强剂7 (OCE7) 在小鼠嗅觉球体中表现出强大的活性.
结论:
- 这项研究成功地描述了OXTR基因的调控格局.
- 在嗅球中发现了一种新的OXTR相关增强剂 (OCE7),可能会影响与行为相关的基因表达.
相关概念视频
RNA Polymerase II Accessory Proteins
9.1K
Proteins that regulate transcription can do so either via direct contact with RNA Polymerase or through indirect interactions facilitated by adaptors, mediators, histone-modifying proteins, and nucleosome remodelers. Direct interactions to activate transcription is seen in bacteria as well as in some eukaryotic genes. In these cases, upstream activation sequences are adjacent to the promoters, and the activator proteins interact directly with the transcriptional machinery. For example, in...
9.1K
Eukaryotic Transcription Activators
10.8K
Transcription activators are proteins that promote the transcription of genes from DNA to RNA. In most cases, these proteins contain two separate domains ‒ a domain that binds to DNA and a domain for activating transcription; however, in some cases, a single domain is responsible for both binding and activation of transcription, as seen in the glucocorticoid receptor and MyoD.
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These...
The binding domains are capable of recognizing and interacting with regulatory sequences on the DNA. These...
10.8K
Co-activators and Co-repressors
7.2K
Gene transcription is regulated by the synergistic action of several proteins that form a complex at a gene regulatory site. This is observed in eukaryotes, where the regulation of gene expression is a complex process. Regulatory proteins in eukaryotes can broadly be classified into two types – regulators that bind directly to specific DNA sequences and co-regulators that associate with regulatory proteins but cannot directly bind to the DNA. These co-regulators are further divided into...
7.2K
Prokaryotic Transcriptional Activators and Repressors
8.3K
8.3K
Master Transcription Regulators
6.8K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
6.8K
Cooperative Binding of Transcription Regulators
2.0K
2.0K


