関連する実験動画
Updated: Feb 14, 2026

08:00
Silencing the Spark: CRISPR/Cas9 Genome Editing in Weakly Electric Fish
Published on: October 27, 2019
10.4K
バチルス・メタノリックスMGA3におけるCRISPR-Cas9駆動のゲノム編集
May L K Khider1, Marta Irla2, Marina Gil López1
1Department of Biotechnology and Food Science, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
Frontiers in microbiology
|February 13, 2026
まとめ
研究者たちは,バチルス・メタノリクス (Bacillus methanolicus) のCRISPR-Cas9ゲノム編集ツールを開発し,効率的な遺伝子編集を可能にしました. このプラットフォームは,この熱愛性メチロトロフの代謝工学のための正確な遺伝子改変を促進します.
科学分野:
- 微生物学 微生物学とは
- 分子生物学は分子生物学である.
- バイオテクノロジー バイオテクノロジー
背景:
- バシルス・メタノリクス (Bacillus methanolicus) は,メタノールを使用する能力のために産業で使用される熱愛性メチロトロフです.
- 効率的な遺伝的ツールは,産業微生物の代謝工学にとって極めて重要です.
研究 の 目的:
- バシルス・メタノリックスMGA3.3のCRISPR-Cas9ゲノム編集システムを開発し,検証する.
- B. methanolicus. の精密な遺伝子削除,置換,変異を可能にするために.
主な方法:
- B. methanolicus.のために1つのプラズミドのCRISPR-Cas9システムが設計されました.
- ゲノム改変のために利用されたネイティブDNA修復経路 (同種の再結合と末端結合).
- 傷跡のない遺伝子削除と置換のためのホモロジー指向の修復と,変異遺伝子の末端結合に誤差がつきやすいことを利用しました.
主要な成果:
- KatAとAlD遺伝子を削除し,それに対応する酵素活性低下を成功させた.
- ゲノムシーケンシングとフェノタイプ分析による遺伝子編集が確認されました.
- katAをmcherryに置き換え,PCRと光で確認した標的遺伝子挿入を達成しました.
- ゲノム編集の全体的な高効率が85%を超えていることが実証されています.
結論:
- 開発されたCRISPR-Cas9システムは,B. methanolicus. の遺伝子操作のための正確で効率的なプラットフォームを提供します.
- このツールは,熱愛性メチロトロフにおける代謝工学の戦略を進めるのに価値があります.
- このシステムは,無痕の遺伝子編集と,株の改善のための標的の遺伝子挿入を容易にする.
関連する概念動画
CRISPR/Cas9 Genome Editing
1.9K
The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...
1.9K
CRISPR
58.0K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
58.0K
CRISPR and crRNAs
19.2K
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
19.2K
RNA Editing
9.9K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.9K
Genomics
40.9K
Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
40.9K
Genomic Imprinting and Inheritance
37.3K
Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
37.3K

