重要なヒト遺伝子の表型風景
Luke Funk1, Kuan-Chung Su2, Jimmy Ly2
1Broad Institute of MIT and Harvard, 415 Main St., Cambridge, MA 02142, USA; Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02142, USA.
Cell
|November 8, 2022
まとめ
この研究では CRISPRスクリーニングと顕微鏡を用いて 重要なヒト遺伝子の機能をマッピングしています 細胞の成長,組織,分裂における 遺伝子の役割を明らかにし 細胞のプロセスを理解するためのリソースを生み出します
科学分野:
- 細胞生物学
- 遺伝学
- ゲノミクス
背景:
- 重要な遺伝子の機能を理解することは 細胞生物学にとって極めて重要です
- 細胞の成長,増殖,形質といったプロセスは 特定の遺伝子に依存しています
- 細胞組織への遺伝子の貢献を 視覚化することが重要です
研究 の 目的:
- ヒトのヘラ細胞における 健常性決定遺伝子の役割を 決定するためです
- 遺伝子機能と特定の細胞過程を 表現型分析で結びつける
- 基本的なヒト遺伝子の 機能的な風景に関する包括的なリソースを作成します
主な方法:
- CRISPR-Cas9のスクリーニングで 合計5072の遺伝子を調べました
- DNAの顕微鏡画像,DNA損傷反応,アクチン,およびマイクロチューブル.
- 3100万以上の細胞と45万の細胞分裂の分析
主要な成果:
- >90%の遺伝子ノックアウトは測定可能なフェノタイプを示した.
- フェノタイプの類似性は遺伝子を共同機能のグループに分割し,遺伝子の機能を予測する.
- 細胞分裂中の染色体分離に寄与する遺伝子を特定した.
結論:
- この研究は 重要なヒトの遺伝子の 機能的な地図を提示しています
- この発見は遺伝子障害を 特定の細胞のプロセスと組織と結びつけています
- 細胞の機能や遺伝子関連性を理解するのに役立ちます.
関連する概念動画
Polygenic Traits
66.3K
When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
66.3K
Genetic Lingo
103.8K
Overview
103.8K
Human Genetics
676
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
676
Pleiotropy
40.8K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
40.8K
Incomplete Dominance
25.2K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
25.2K
Epistasis Analysis
5.1K
Although Mendel chose seven unrelated traits in peas to study gene segregation, most traits involve multiple gene interactions that create a spectrum of phenotypes. When the interaction of various genes or alleles at different locations influences a phenotype, this is called epistasis. Epistasis often involves one gene masking or interfering with the expression of another (antagonistic epistasis). Epistasis often occurs when different genes are part of the same biochemical pathway. The...
5.1K


