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A method for detecting the source of miRNA

A source, technology to be tested, used in the fields of bioinformatics and genomics

Active Publication Date: 2021-05-07
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] At present, there is no research on the relationship between pseudogenes and miRNAs, and there is a lack of a standard method for detecting miRNAs transcribed from pseudogenes in the prior art

Method used

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  • A method for detecting the source of miRNA
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Embodiment 1

[0038] Using an approach to investigate the relationship between pseudogenes and miRNAs, a genome-wide database of known miRNA precursors and pseudogenes were correlated in the C. elegans elegans.

[0039] S1, by querying the miRNA database miRBase website (http: / / mirbase.org / index.shtml) to obtain information about all known target miRNAs precursor sequences in Caenorhabditis elegans, including their chromosome location The physical location, name and the positive or negative of the DNA strand where it is located, etc.;

[0040] S2, by querying the pseudogene database PseudoFam website (http: / / pseudofam.pseudogene.org / pages / main / about.jsf) to obtain the relevant information of the Caenorhabditis elegans genome pseudogene database, including its physical location on the chromosome, The name and the positive or negative nature of the DNA strand where it resides, etc.;

[0041] S3, compare the physical location of the target miRNA(s) of C. elegans with the pseudogene sequence o...

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Abstract

The present invention provides a method for detecting the source of miRNA, comprising the following steps: 1) providing the information of the miRNA precursor sequence to be detected in the species; 2) providing the pseudogene information of the species in the pseudogene database; 3) converting the Whether the physical position of the miRNA precursor sequence to be detected overlaps with the nucleotide sequence of the pseudogene of the species, and the pseudogene with a degree of overlap with the miRNA precursor sequence to be detected is used to determine the candidate pseudogene; 4) according to the miRNA precursor sequence to be detected Calculate the coincidence degree I of the two types of sequences at the physical position of the chromosome sequence and the pseudogene sequence of the species genome; 5) when the coincidence degree I meets the condition of 1≧1>0.3, determine that the miRNA to be detected is composed of The candidate pseudogenes were generated. The invention not only fills in the research blank of the relationship between miRNA and pseudogenes, but also can batch discover pseudogenes with potential biological functions in the genome, and provide candidate pseudogenes for the construction of gene regulation network.

Description

technical field [0001] The invention relates to the technical fields of bioinformatics and genomics, in particular to a method for detecting the source of miRNA. Background technique [0002] miRNA, also known as microRNA, is a kind of endogenous non-coding single-stranded small molecular RNA with a size of 21-25nt widely present in various organisms such as animals, plants and viruses. Most miRNA genes are first transcribed into primary transcripts primiRNA (primary microRNA), which form precursor premiRNA (precursor microRNA) with a stem-loop structure through specific alternative splicing; and then spliced ​​again to finally produce mature miRNA. Therefore, the miRNA precursor sequence is the source sequence for the production of mature miRNA. miRNA has important regulatory functions. For example, in plants, miRNA is mainly responsible for regulating plant growth, development and stress tolerance. At present, great progress has been made in the identification and biolog...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12Q1/6809
CPCC12Q1/6809C12Q2535/00
Inventor 张德强李英谢剑波
Owner BEIJING FORESTRY UNIVERSITY
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