相关实验视频

Updated: Jun 3, 2025

Rapid Synthesis and Screening of Chemically Activated Transcription Factors with GFP-based Reporters

Rapid Synthesis and Screening of Chemically Activated Transcription Factors with GFP-based Reporters

Published on: November 26, 2013

一个可热交换的基因开关:为必不可少的基因MEDIATOR 21建立一个可诱导和可追踪的功能测试

Isabella J Watson¹, Cassandra Maranas¹, Jennifer L Nemhauser¹

¹Department of Biology, University of Washington, Seattle, WA 98195-1800 USA.

bioRxiv : the preprint server for biology

|January 7, 2025

概括

像MEDIATOR21 (MED21) 这样的基本基因至关重要,但很难研究. 新的Integrase Eraser技术使研究人员能够控制MED21的功能,使研究能够研究Arabidopsis中必不可少的基因.

科学领域:

植物分子生物学植物分子生物学
遗传学遗传学是一个
生物化学生物化学

背景情况:

基本基因对生物体的生存和繁殖至关重要,这使得它们难以研究,因为在破坏时具有致命的表型.
调解器综合体,包括MEDIATOR21 (MED21),在调节基因转录方面发挥着关键作用,MED21参与激活和抑制.
研究MED21在转录中的独特作用受到其基本性质的阻碍,导致Arabidopsis的胚胎致命表型.

研究的目的:

开发和验证用于研究Arabidopsis.com中必不可少的基因MEDIATOR21 (MED21) 的新型遗传工具.
区分MED21在转录激活与抑制中的作用.
为了研究胚胎后发育过程中基本的基因功能.

主要方法:

使用 PhiC31 血清整合酶 (整合清除剂) 设计的合成开关,以创建可诱导功能丧失的 MED21 基因.
开发了可化学诱导的整合酶清除剂,用于对整个幼苗中MED21除的时间控制.
创建了一个可热交换的整合酶同型开关,用于在野类型和变体MED21表达之间切换.

主要成果:

整合酶擦除技术使得med21突变的阿拉比多普西斯植物能够通过选择性地切除MED21表达在横向根原始体中的表达而生存到成年期.
成功量化和表征了med21突变的胚胎后表型.
开发的工具证明了对研究基本基因的高效率和稳定性.

结论:

Integrase Eraser和相关技术为剖析基本基因功能提供了一种强大而通用的方法.
这种方法克服了研究致命基因的局限性,通过使条件和可诱导的功能丧失成为可能.
这项研究为MED21在基因调节和植物发育中的复杂作用提供了新的见解.

关键词:

整合酶可以整合.在MED21中,MED21是MED21中的一部分.合成生物学合成生物学可以诱导的淘汰赛.变体切换变体切换变体切换

更多相关视频

Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling

Applying an Inducible Expression System to Study Interference of Bacterial Virulence Factors with Intracellular Signaling

Published on: June 25, 2015

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

相关概念视频

Reporter Genes

Reporter Genes

Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.

In-vitro Mutagenesis

In-vitro Mutagenesis

To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.