相关实验视频

Updated: Jul 18, 2025

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
09:38

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras

Published on: May 31, 2014

11.0K

子TRIM基因库的演变和表达

Lee K Campbell1,2, Rhiannon M Peery1,3, Katharine E Magor1,2

  • 1Department of Biological Sciences, University of Alberta, Edmonton, AB, Canada.

Frontiers in immunology
|August 25, 2023
PubMed
概括

这项研究在野中发现了57个三方基因 (TRIM) 基因,揭示了免疫组织中显著的进化和表达模式. 这些发现表明,TRIM基因是鸟类免疫力和宿主-病原体相互作用的关键.

关键词:
B30.2/PRY-SPRY 域名 B30.2/PRY-SPRY 域名 B30.2/PRY-SPRY 域名有关TRIM蛋白质的研究.进化 演化 演化 演化 演化 演化 演化 演化基因复制是基因的复制.马拉德子是什么意思

更多相关视频

A Rapid In Vivo Bioassay for Developmentally Active Enhancers00:08

A Rapid In Vivo Bioassay for Developmentally Active Enhancers

1.3K
Creating Avian Forebrain Chimeras to Assess Facial Development04:10

Creating Avian Forebrain Chimeras to Assess Facial Development

Published on: February 18, 2021

1.2K

相关概念视频

Exon Recombination02:32

Exon Recombination

The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes. 
Exon shuffling follows “splice frame rules.” Each exon...
3.6K
Cis-regulatory Sequences02:02

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...
9.9K
Gene Duplication and Divergence02:37

Gene Duplication and Divergence

The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was  generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.2K
Regulation of Expression at Multiple Steps01:23

Regulation of Expression at Multiple Steps

The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
943
Determination01:51

Determination

During embryogenesis, cells become progressively committed to different fates through a two-step process: specification followed by determination. Specification is demonstrated by removing a segment of an early embryo, “neutrally” culturing the tissue in vitro—for example, in a petri dish with simple medium—and then observing the derivatives. If the cultured region gives rise to cell types that it would normally generate in the embryo, this means that it is specified. In...
18.6K
Regulation of Expression Occurs at Multiple Steps02:24

Regulation of Expression Occurs at Multiple Steps

Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
22.8K