相关实验视频
Updated: Jul 28, 2025

06:16
mirMachine: A One-Stop Shop for Plant miRNA Annotation
Published on: May 1, 2021
2.6K
根据一个集体学习框架推断伪基-MiRNA关联,与相似的核融合相似
1School of Computer Science and Engineering, Xi'an Technological University, Xi'an, 710021, China. cyfan@xatu.edu.cn.
Scientific reports
|May 31, 2023
概括
这项研究介绍了ELPMA,一个集体学习框架,用于预测伪基因和微RNA (miRNA) 之间的相互作用. 这种计算方法有助于理解基因调节和疾病机制.
科学领域:
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
- 计算生物学 计算生物学
背景情况:
- 伪基因可以作为microRNA (miRNA) 的海绵,影响基因表达.
- 识别伪基-miRNA相互作用对于理解复杂疾病至关重要,但在实验上具有挑战性.
- 预测这些相互作用的现有方法是有限的.
研究的目的:
- 开发一个有效的计算框架来预测伪基-miRNA关联.
- 通过确定关键的监管相互作用,促进复杂疾病的临床诊断和治疗.
- 克服耗时和劳动密集型实验方法的局限性.
主要方法:
- 提出了一个名为ELPMA的集体学习框架,包含相似性内核融合.
- 基于生物和拓特性计算的伪基因和miRNA相似性概况.
- 集成的相似性使用内核融合和生成的特征表示用于预测.
- 雇员k倍交叉验证和绩效评估的案例研究.
主要成果:
- 该ELPMA模型在识别假基因-miRNA相互作用方面表现出高的预测性能.
- 案例研究验证了该模型对特定伪基因的有效性.
- 组合学习方法与相似性内核融合被证明是强大的.
结论:
- ELPMA是一种可行的和有效的计算工具,用于预测伪基因-miRNA相互作用.
- 这种方法可以显著加速发现与疾病相关的调节关系.
- 这项研究强调了计算方法在推进基因组研究方面的潜力.
相关概念视频
MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
Improving Translational Accuracy
11.7K
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
11.7K
Evolutionary Relationships through Genome Comparisons
5.9K
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...
5.9K
Genome Annotation and Assembly
18.9K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
18.9K

