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45 results about "Intergenic region" patented technology

An Intergenic region (IGR) is a stretch of DNA sequences located between genes. Intergenic regions are a subset of noncoding DNA. Occasionally some intergenic DNA acts to control genes nearby, but most of it has no currently known function. It is one of the DNA sequences sometimes referred to as junk DNA, though it is only one phenomenon labeled such and in scientific studies today, the term is less used. Recently transcribed RNA from the DNA fragments in intergenic regions were known as "dark matter" or "dark matter transcripts".

Recombinant vector for eliminating activity of kanamycin drug resistance gene and building method of recombinant vector

The invention provides a recombinant vector for eliminating the activity of a kanamycin drug resistance gene, and aims at eliminating drug resistance germs in organisms and solving the problem of kanamycin drug resistance of the germs. The recombinant vector for eliminating the activity of the kanamycin drug resistance gene is characterized by comprising a pCas9 vector subjected to chloramphenicol resistance elimination and a gRNA nucleotide sequence KR58 or KR208 aiming at a kanamycin resistance gene kan; the concrete nucleotide sequence of the KR58 is GCCGCGAT TAAATTCCAACA, and the concrete nucleotide sequence of the KR208 is CAATGATG TTACAGATGAGA. A building method of the recombinant vector mainly comprises the steps of carrying intergenic region nucleic acids by a novel gene editing tool CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats)/Cas9 system; removing a chloramphenicol resistance gene on the recombinant vector; transforming the gene into vaccine vector bacteria such as attenuated salmonella typhimurium; performing co-culture on the recombinant bacteria and the kanamycin drug resistance gene so that the recombinant vector in the recombinant bacterium cell enters the kanamycin drug resistance bacteria in an engaging mode. The activity of the kanamycin resistance gene kan is effectively inhibited, so that the original drug resistance bacterium cannot grow on a kanamycin culture medium.
Owner:YANGZHOU UNIV

Tubercle bacillus drug tolerance detection reagent kit and tubercle bacillus drug tolerance detection method

The invention provides a tubercle bacillus drug tolerance detection reagent kit and method. The tubercle bacillus drug tolerance detection reagent kit comprises a tubercle bacillus drug tolerance detection reagent, wherein the tubercle bacillus drug tolerance detection reagent comprises a sequencing primer in accordance with a tubercle bacillus drug tolerance gene; the tubercle bacillus drug tolerance gene comprises one or more genes of rpoB, katG, inhA-promoter, inhA-structural, furA, embB, ubiA, pncA, rpsA, gyrA, gyrB, eis, rpsL, rrs, tlyA, rplC and rrl; and further, the reagent kit also contains a tubercle bacillus nucleic acid detection reagent, and the tubercle bacillus nucleic acid detection reagent comprises a primer pair 1 in accordance with IS6110, a primer pair 2 in accordance with the IS6110 and a probe primer in accordance with the IS6110. Through the adoption of the tubercle bacillus drug tolerance detection reagent kit disclosed by the invention, tubercle bacillus nucleicacid in samples can be quickly detected, and positive samples can be further subjected to drug tolerance detection; and the tubercle bacillus drug tolerance detection reagent kit has good sensitivity, good specificity and good accuracy, and can perform mutation detection on 48 sites of 17 drug tolerance genes of common antituberculosis drugs and fragment deficiency detection of an intergenic region, so that the tuberculosis medication can be more accurately and comprehensively guided.
Owner:GUANGZHOU KINGMED DIAGNOSTICS GRP CO LTD +1

Method for detecting pathogenic mycobacteria in clinical specimens

The present invention relates to detection of pathogenic mycobacteria in clinical specimens such as sputum, cerebrospinal fluid, gastric lavage and tissue biopsies etc., wherein the novel stretch of DNA that lies in the intergenic region between methyl mycolic acid synthase genes mmaA1 and mmaA2 and the flanking region in mmaA1 and mmaA2 genes and is the invention uses a pair of designed oligonucleotide primers that specifically amplifies the target DNA from the clinical specimens
Owner:COUNCIL OF SCI & IND RES

Heat-resistant serum 4 type fowl adenovirus genetic engineering vaccine candidate strain and construction method thereof

The invention relates to a heat-resistant serum 4 type fowl adenovirus genetic engineering vaccine candidate strain and a construction method thereof. The candidate strain is a thermal-stability newcastle disease virus (Newcastle Disease Virus) rAHR09-4F2 expressing serum 4 type fowl adenovirus spike protein 2, and the preservation number is CCTCC NO: V201932. The candidate strain is obtained through using a heat-resistant newcastle disease attenuated virus strain rAHR09 as a carrier, inserting a serum 4 type fowl adenovirus (FAdV4) spike protein (fiber2) gene between a P intergenic region andan M intergenic region, and adopting a backward heredity technique. The result of evaluating the biological characteristics and the immunoprotection efficacy of the candidate strain displays that therecombinant virus has favorable heat stability and immunogenicity and provides favorable immunoprotection on FAdV4 infection.
Owner:YANGZHOU UNIV

Novel isothermal loop-mediated vibrio parahaemolyticus nucleic acid marker detection reagent

The invention relates to a novel isothermal loop-mediated vibrio parahaemolyticus nucleic acid marker detection reagent. According to the reagent, an antigen is marked for a front inner primer in a primer group used in isothermal loop-mediated amplification, meanwhile another antigen is marked for a rear inner primer, the operation can be performed when a vibrio parahaemolyticus specific 16S-23S rRNA intergenic region sequence is amplified, subsequently a piece of colloidal gold test paper in match is adopted to detect an amplification product, and then vibrio parahaemolyticus can be detected. As the primer for the 16S-23S rRNA intergenic region sequence is designed for RNA secondary structure prediction, the situation that the detection sensitivity and the specificity can be influenced by mutation caused if other protein genes are used or the rRNA gene is blindly used can be avoided as much as possible, and the detection reagent provided by the invention is good in specificity and sensitivity.
Owner:QINGDAO UNIV

Quick identification method for paniculate swallowwort root medicinal material and counterfeit species thereof

The invention discloses a quick identification method for a paniculate swallowwort root medicinal material and counterfeit species thereof, namely rhizoma cynanchi stauntonii and blackend swallowwortroots. The quick identification method comprises the following steps: 1) extracting DNA of a to-be-detected sample; 2) taking the DNA of the to-be-detected sample as a template, and performing PCR amplification on a fragment of an ITS2 sequence containing ribosomal DNA; 3) splicing amplification products to obtain a complete ITS2 intergenic region; 4) analyzing interspecific variation sites of paniculate swallowwort root and counterfeit species thereof, namely rhizoma cynanchi stauntonii and blackend swallowwort roots, identifying as paniculate swallowwort roots if the 50-th site is a basic group C, and identifying as counterfeit species of paniculate swallowwort roots if the 50-th site is basic group deletion. The quick identification method is strong in applicability, is simple to operate, can realize quick and accurate identification for the paniculate swallowwort root medicinal material and counterfeit species thereof, and can identify a great number of samples within a short time.
Owner:INST OF MEDICINAL PLANT DEV CHINESE ACADEMY OF MEDICAL SCI

Method for enabling stable expression of transgene

This invention relates to a method for stably expressing a transgene integrated into the genome of an animal cell or of an animal over a long period. Specifically, this invention provides: an approximately 2.5 kb XhoI-BamHI fragment (or XB fragment) derived from the Evx2-Hoxd13 intergenic region of the animal genome, or a homologue thereof; a DNA containing a foreign DNA wherein the DNA has been inserted between the two essentially identical XB fragments or homologues thereof; a vector, animal cell, or nonhuman mammalian animal containing said DNA; and use of the vector, animal cell, or nonhuman mammalian animal for production of a substance or therapy.
Owner:RIKEN
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