
基因序列中的一些名词区别(CDS、Exon、Intron、UTR、ORF、 …
外显子 (expressed region),是真核生物基因的一部分,它在剪接后仍会被保存下来,并可在蛋白质生物合成过程中被表达为蛋白质。 外显子是最后出现在成熟RNA中的基因序列,又称表达序列。 既存在于最初的转录产物中,也存在于成熟的RNA分子中的核苷酸序列。 通过确定在多种生物中出现的片段来鉴定编码区域,而外显子的保守性可以作为这种鉴定的基础。 4. 开放阅读框 ORF (open reading frame)它是理论上的蛋白编码区,一般是先在DNA序列中寻找起始密码 …
Exon - Wikipedia
An exon – EXpressed regiON - is any part of a gene that will form a part of the final mature RNA produced by that gene after introns have been removed by RNA splicing. The term exon refers to both the DNA sequence within a gene and to the corresponding sequence in RNA transcripts.
Exon - National Human Genome Research Institute
4 天之前 · An exon is a region of the genome that ends up within an mRNA molecule. Some exons are coding, in that they contain information for making a protein, whereas others are non-coding. Genes in the genome consist of exons and introns.
gtf文件第三列详详解(exon/CDS transcript/gene) - 简书
1. exon外显子:包括cds,并不是所有的外显子都能编码氨基酸,5‘UTR 3'UTR,外显子可能在一些转录本中翻译,在一些转录本中不翻译. 2. CDS编码区,编码蛋白质的区域
能否简单易懂的介绍外显子(exon),内含 …
重叠基因 (Overlapping genes)是指两个或两个以上的基因共享一段DNA序列的现象。 重叠基因的存在使得一段核苷酸序列可以编码一种以上的 表达产物。 重叠基因使一段DNA序列翻译出的mRNA能被不同的读框阅读,或者使一个基因的反 义 链的某一部分能成为另一个基因的正义链的一部分。 科学家已在细菌,病毒,甚至真核细胞/真核生物中发现了重叠基因的存在。 研究表明,在细菌中,基因组中有三分之一的部分含有重叠基因。 重叠基因广泛存在于 病毒 中。 此 …
Exon - Definition, Structure and Function - Biology Dictionary
2017年8月6日 · An exon is a coding region of a gene that contains the information required to encode a protein. In eukaryotes, genes are made up of coding exons interspersed with non-coding introns. These introns are then removed to make a functioning messenger RNA (mRNA) that can be translated into a protein.
Not all exons are protein coding: Addressing a common …
2023年4月12日 · Exons are genomic regions that are transcribed to RNA and retained after introns are spliced out. We clarify the definition of an exon, which is often misused as synonymous to “protein coding.” We demonstrate that only a fraction of exonic sequences are protein coding and highlight the importance of non-coding exonic regions.
Exons: Their Structure, Role, and Health Significance
2025年3月17日 · CRISPR-Cas9 gene editing has emerged as a powerful tool for functional exon studies, permitting precise modification of exon sequences to investigate their role in protein function. These techniques enhance exon research, refining genetic diagnoses, therapeutic strategies, and our broader understanding of molecular biology.
Gene structure, introns and exons, splice sites | HSLS
Search for comprehensive information on splicing by exon skipping in human genome. Detect exon-intron structure of a gene by comparing the genomic sequence to the related ESTs. Find information about alternative splicing gene variants. Carry out simulated RT-PCR to detect transcript variants.
基础知识 — Exons,Introns,ORF,CDS,UTR,lncRNA,转录本 ... - 简书
2021年8月18日 · 基因(gene):是指一段能够编码基因产物(RNA或蛋白质)的核苷酸序列(ATCG)。 能编码出蛋白质的是编码基因,能编码出RNA的是非编码基因。 弄清其序列本身的过程叫 基因测序。 基因产物可以是蛋白质(蛋白质编码基因)及RNA,从而控制生物个体的性状(差异)表现。 在一个个体当中所有的基因总和叫基因组。 在一个物种中所有等位基因的总合叫基因库。 在大多数真核生物中,基因分为细胞核基因及线粒体基因,绿色植物的叶绿体也含 …
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