相关实验视频
Updated: Jul 14, 2026

12:04
Mouse Genome Engineering Using Designer Nucleases
Published on: April 2, 2014
鼠标细分基因kr编码了一个新的基本域 - - 氨酸拉链转录因子
1Department of Pediatrics, Stanford University, California 94305.
Cell
|December 16, 1994
概括
小鼠克里斯勒 (kr) 突变破坏后脑细分和内耳发育. 这项研究确定了kr基因作为bZIP转录因子,对于早期的轴向模式至关重要.
科学领域:
- 发展生物学 发展生物学
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
背景情况:
- 小鼠克雷斯勒 (kr) 突变与尾部后脑和内耳发育中的细分缺陷有关.
- 之前的研究发现了原始kr等位基因的逆转,这表明这些发育异常的遗传基础.
研究的目的:
- 为了确定负责克莱斯勒 (kr) 突变的基因.
- 阐明背后大脑和眼睛发育背后的分子机制.
主要方法:
- 基因候选人选择基于发育中的尾部后脑中的表达模式.
- 通过化学突变发生生成的第二个kr等位基因的分析.
- 通过其表达和突变现型来描述已识别的基因的功能.
主要成果:
- 确定了一种候选cDNA,在发育中的尾部后脑中高度表达.
- 候选cDNA编码了一个基本的域-氨酸拉链 (bZIP) 转录因子.
- 第二个kr等位基因证实了基因的身份,揭示了保留的DNA结合域中的突变.
结论:
- 克莱斯勒 (kr) 基因编码了一个bZIP转录因子,这对于早期的轴向模式至关重要.
- kr基因在后脑和眼膜结构的分子和胚胎发育中发挥着关键作用.
- 了解kr的功能,可以了解脊椎动物发育的遗传控制.
相关概念视频
Cis-regulatory Sequences
Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
Master Transcription Regulators
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...

