相关实验视频
Updated: Sep 16, 2025

08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
16.1K
PHACE:对分子共进化的植物遗传意识检测
Nurdan Kuru1, Ogün Adebali1,2
1Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul 34956, Turkiye.
Molecular biology and evolution
|July 11, 2025
概括
PHACE是一种新的分谱意识的共同进化算法,通过将氨基酸变化映射到分谱树上,准确地检测分子共同进化. 这种方法通过考虑进化史来获得更好的蛋白质结构和功能洞察力,优于现有的工具.
科学领域:
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
- 进化生物学 进化生物学
背景情况:
- 氨基酸共同进化为蛋白质结构和功能提供了洞察力.
- 当前的共同进化信号检测方法往往忽视了家族遗传关系.
研究的目的:
- 介绍PHACE,一种新的植物遗传意识的共同进化算法.
- 通过结合进化史来提高检测分子共同进化的准确性.
主要方法:
- PHACE将氨基酸替代物映射到一个家族遗传树上.
- 它通过复发对氨基酸进行分类,并将缺口视为独特的特征.
- 该算法计算了特定分支的替换得分,并使用对齐掩盖来减轻错误.
主要成果:
- 与现有方法相比,PHACE在识别共演的残留物对方面表现出更高的准确性.
- 使用诸如马修斯相关系数,AUC和F1分数等指标验证了性能.
- 该方法明确模拟了在共同进化分析中经常被忽视的遗传学依赖性.
结论:
- 在检测分子共同进化的过程中,PHACE提供了显著的进步.
- 它的植物遗传意识的方法提高了同进化分析的可靠性.
- 这种工具可以带来对蛋白质结构和功能的更深入的理解.
相关概念视频
Evolutionary Relationships through Genome Comparisons
6.2K
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
6.2K
Applications of Molecular Taxonomy
115
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
115
Gene Evolution - Fast or Slow?
7.5K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
In contrast, regions which code...
7.5K
Phylogeny
47.8K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
47.8K
Modern Molecular Taxonomy
157
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
157
Synteny and Evolution
3.4K
John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.4K

