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相关概念视频

In-vitro Mutagenesis01:16

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.
Combinatorial Gene Control02:33

Combinatorial Gene Control

Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
In vitro Mutagenesis01:16

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.
Genetic Screens02:46

Genetic Screens

Genetic screens are tools used to identify genes and mutations responsible for phenotypes of interest. Genetic screens help identify individuals or a group of people at risk of developing  genetic diseases and help them with early intervention, targeted therapy, and reproductive options.
Forward genetic screens
Forward or “classical” genetic screens involve creating random mutations in an organism’s DNA using radiation, mutagens, or insertion of additional bases, which result in visible changes...
Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
Genetic Variation01:25

Genetic Variation

Genetic variation is the diversity in DNA sequences found among individuals of the same species. This diversity is crucial for a species' survival because it helps organisms adapt to environmental changes. Genetic variation begins with fertilization, where an egg and sperm cell merge. Each of these cells carries 23 chromosomes, up to 46 in the fertilized egg. Chromosomes are long DNA strands that contain genes, the basic units of heredity.
Genes exist in different versions called alleles, which...

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相关实验视频

Updated: Jun 17, 2026

Interactome-Seq: A Protocol for Domainome Library Construction, Validation and Selection by Phage Display and Next Generation Sequencing
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基于体显示的优化体选择,用于开发异构聚合光遗传工具.

Giang N T Le1, Jaewan Jang1,2, Maruti Uppalapati3

  • 1Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H7, Canada.

ACS synthetic biology
|May 9, 2025
PubMed
概括

开发新的光遗传工具需要对可光切换蛋白质具有高度选择性的结合剂. 这项研究优化了菌体显示,以有效地捕获蓝菌体GAF域中的微妙构造变化,产生选择性结合剂.

关键词:
基于蓝色细菌的GAF.在光学遗传学方面,光学遗传学是指光学遗传学.菌体显示器可以显示菌体.可光切换蛋白质是一种可光切换蛋白质.蛋白质工程工程 蛋白质工程

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科学领域:

  • 生物技术是生物技术.
  • 分子生物学分子生物学
  • 视觉遗传学 视觉遗传学

背景情况:

  • 像菌体显示这样的显示技术通过开发可光切换蛋白质的结合伙伴来扩展光遗传工具箱.
  • 由于细微的形状差异,发现针对菌染色体 (CBCR) GAF域等标的选择性结合剂具有挑战性.

研究的目的:

  • 介绍一种优化的菌体显示协议,用于捕获可光切换蛋白质中微妙的形状变化.
  • 为了证明该协议在识别CBCRGAF域家族的高度选择性结合物的实用性.

主要方法:

  • 优化了菌体显示协议,具有高选择压力.
  • 修改了化方法和更严格的负选择策略.
  • 结合剂丰富的多重选择活动.

主要成果:

  • 成功丰富了CBCRGAF域的选择性结合剂.
  • 证明了该协议在捕捉微妙的形状状态差异方面的有效性.
  • 通过优化选择压力确定了高度选择性的结合物.

结论:

  • 优化的菌体显示协议是有效的发现选择性的结合剂对具有微妙的构造状态具有挑战性的目标.
  • 这种方法通过提高粘合剂选择性来增强光遗传工具的开发.
  • 该协议为推进光切换蛋白质工程研究提供了一种有价值的方法.