通过人类基因中6mer子集的分散特征对六种类型的受体分割序列进行差异分析
Yangming Si1, Hong Li1, Xiaolong Li1
1Inner Mongolia Autonomous Region Key Laboratory of Biophysics and Bioinformatics, School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, China.
Biology
|February 26, 2025
概括
这项研究揭示了6mer子集分散值有效地描述了人类拼接序列. 这些值显著区分了常见,构成和替代拼接模式,有助于预测拼接模式.
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.
- 分子生物学分子生物学
背景情况:
- 了解不同拼接模式中的序列组成仍然是一个研究挑战.
- 剪接部位分析对于基因表达调节至关重要.
研究的目的:
- 在人类接受器拼接区域中探索6mer子集的分散分布.
- 评估分散值在表征和区分拼接模式中的实用性.
主要方法:
- 在人类接受器拼接区域中分析了16种类型的6分子子集的分散分布.
- 将接受器拼接序列分为常见,构成和替代模式的分类.
- 进一步将替代拼接分为正常,外在和内在的子模式.
主要成果:
- 在上游,核心和下游拼接区域中观察到分散分布的显著差异.
- 散射值有效地表征了序列组合属性.
- 大多数XY1 6-mer子集在常见,构成和替代拼接模式之间显示出显著的分散分布差异.
- 在正常,外型和内型替代拼接子模式之间也发现了显著的差异.
结论:
- 6-mer子集的分散值揭示了接受器拼接区域中的序列组成模式.
- 这些值有效地识别了各种接受器拼接模式之间的基相关性差异.
- 这些发现为揭示和预测不同的拼接模式提供了新的见解.
相关概念视频
Alternative RNA Splicing
20.9K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
20.9K
RNA Splicing
55.9K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
55.9K
Multi-species Conserved Sequences
3.9K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
Exon Recombination
3.5K
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...
Exon shuffling follows “splice frame rules.” Each exon...
3.5K
Single Nucleotide Polymorphisms-SNPs
13.8K
A single nucleotide polymorphism or SNP is a single nucleotide variation at a specific genomic position in a large population. It is the most prevalent type of sequence variation found in the human genome. Point mutations that occur in more than 1% of the population qualify as SNPs. These are present once every 1000 nucleotides on an average in the human genome. Replacement of a purine with another purine (A/G) or a pyrimidine with another pyrimidine (C/T) is known as a transition. In contrast,...
13.8K


