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182 results about "TaqMan" patented technology

TaqMan probes are hydrolysis probes that are designed to increase the specificity of quantitative PCR. The method was first reported in 1991 by researcher Kary Mullis at Cetus Corporation, and the technology was subsequently developed by Roche Molecular Diagnostics for diagnostic assays and by Applied Biosystems (now part of Thermo Fisher Scientific) for research applications.

TaqMan real-time fluorescent quantitative PCR probe and primer combination for identifying ampullaria gigas, kit and application of TaqMan real-time fluorescent quantitative PCR probe and primer combination

The embodiment of the invention discloses a probe primer combination for identifying TaqMan real-time fluorescent quantitative PCR of ampullaria gigas, a kit and application. Comprising a probe, an upstream primer and a downstream primer, the nucleotide sequence of the probe is 5 '-FAM-CCTTCTCTATTACTACTATTA-MGB-3', the nucleotide sequence of the upstream primer is 5 '-CTTTCCGCGTCTAATAACATG-3', and the nucleotide sequence of the downstream primer is 5 '-CATCAGTTCCAGCACCACTC-3'. The TaqMan probe real-time fluorescent PCR probe and primer combination established by the invention has excellent specificity and sensitivity in the aspect of identifying the species of the ampullaria gigas, the detection accuracy is greatly improved, the detection time is shortened, the effects of stability, reliability, short period and low cost are achieved, and the primer combination has good application prospects in rapid and accurate identification of the ampullaria gigas. The method is of great significance in promoting related prevention and research work.
Owner:KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI

Carbapenem drug resistance gene nucleic acid fluorescence PCR method detection kit and application thereof

The invention designs a carbapenem drug-resistant gene nucleic acid fluorescent PCR method detection kit and application thereof, the kit uses Taqman fluorescent probe multiple amplification technology to detect carbapenem drug-resistant genes, the kit comprises a nucleic acid reaction liquid Mix1 and a nucleic acid reaction liquid Mix2, the nucleic acid reaction liquid Mix1 is used for detecting drug-resistant genes IMP, NDM and OXA48, the nucleic acid reaction liquid Mix2 is used for detecting drug-resistant genes IMP, NDM and OXA48, and the nucleic acid reaction liquid Mix2 is used for detecting drug-resistant genes IMP, NDM and OXA48. The nucleic acid reaction liquid Mix2 is used for detecting drug resistance genes VIM, KPC and OXA23. The method is high in detection specificity, and the detection result is visual and easy to interpret. Clinical doctors are assisted to judge respiratory tract pathogen infection more comprehensively and more accurately. The kit covers six carbapenem drug resistance genes, is more comprehensive and accurate in detection, and is high in specificity and sensitivity. Meanwhile, multiple sample types can be detected, a sputum sample, an excrement sample and a rectum swab sample are detected through paramagnetic particle extraction, and pure bacterial colonies are directly detected without extraction.
Owner:JIANGSU MACRO&MICRO TEST MED TECH CO LTD +1

Nucleic acid combination product for detecting multiple respiratory pathogens, kit containing nucleic acid combination product and method

The invention discloses a nucleic acid combination product for detecting various respiratory pathogens, a kit containing the nucleic acid combination product and a method. The nucleic acid combination product comprises a primer pair and a probe, wherein the nucleotide sequences of the primer pair and the probe are respectively shown as SEQ ID NO: 1-21. According to the nucleic acid combination product, on the technical basis of Taqman fluorescent quantification, seven targets can be detected by one tube, so that the time and energy of operators are greatly shortened, and the nucleic acid combination product is convenient and rapid, is not easy to make mistakes, and is simpler and easier to understand in result interpretation.
Owner:SANSURE BIOTECH INC

Taq DNA polymerase mutant with improved excision activity and application thereof

The invention discloses a Taq DNA polymerase mutant with improved excision activity and application thereof, and belongs to the technical field of enzyme engineering. The invention aims to solve the technical problems of low probe cutting efficiency, weak fluorescence signal, limited detection sensitivity (especially for low-abundance targets), low reaction speed (high Ct value) and reduced specificity caused by insufficient 5 '-> 3' excision enzyme activity of wild Taq DNA polymerase in TaqMan probe method qPCR (quantitative polymerase chain reaction). According to the technical scheme, the Taq DNA polymerase mutant with the high 5 '-3' exonuclease activity is provided, the amino acid sequence of the Taq DNA polymerase mutant is shown as SEQ ID NO.2, the exonuclease activity of the mutant is improved by 77%, the cutting speed of a TaqMan probe is greatly increased, accumulation of fluorescence signals is accelerated, the Ct value is reduced, and the detection time is remarkably shortened.
Owner:YEASEN BIOTECHNOLOGY (SHANGHAI) CO LTD

Primer and probe composition for detecting nocardia seriolae based on TaqMan qPCR and application of primer and probe composition

The invention discloses a primer and probe composition for detecting nocardia seriolae based on TaqMan qPCR (quantitative polymerase chain reaction) and application of the primer and probe composition. According to the invention, a qualitative and quantitative detection method for nocardia seriolae is established by utilizing the specific primers and probes, and the method is used for carrying out qualitative detection on water bodies and fish bodies of farms of snakeheads and hybrid snakeheads in different regions and detecting different tissues after the hybrid snakeheads counteract the nocardia seriolae, and has a very good detection effect. According to the invention, the purposes of nocardia seriolae monitoring, nocardia disease diagnosis, pathological degree measurement and the like can be realized, a reliable detection tool can be provided for nocardia seriolae epidemiological investigation, and nocardia disease can be diagnosed in an early stage so as to guide culture management and reasonable medication treatment; and a research basis and a technical support are provided for exploring epidemic characteristics and pathological mechanisms of nocardia seriolae.
Owner:SUN YAT SEN UNIV

TaqMan real-time fluorescent quantitative PCR probe primer combination for identifying trachemys scripta elegans, kit and application

The embodiment of the invention discloses a fluorescent primer combination for identifying TaqMan real-time fluorescent quantitative PCR of trachemys scripta elegans, a kit and application. Comprising a probe, an upstream primer and a downstream primer, the nucleotide sequence of the probe is 5 '-FAM-TTACTCCGACTATCCAG-MGB-3', the nucleotide sequence of the upstream primer is 5 '-TCCTAGGCCTTGCTGGAATG-3', and the nucleotide sequence of the downstream primer is 5 '-TGAAATAGAATTCTATGCG-3'. The TaqMan real-time fluorescent quantitative PCR probe primer combination developed by the invention has the characteristics of strong specificity and high sensitivity in the aspect of identifying trachemys scripta elegans species, and the detection accuracy and reliability are greatly improved; powerful technical support is provided for effectively monitoring distribution and diffusion of trachemys scripta elegans, preventing and controlling damage of trachemys scripta elegans to the ecological environment and guaranteeing public health safety.
Owner:KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI

Primer probe combination and kit for detecting eDNA of Chinese sturgeons and application of primer probe combination and kit

The invention relates to a primer probe combination and a kit for detecting eDNA of Chinese sturgeons and application of the primer probe combination and the kit. Specific primers and TaqMan probes are designed for a D-loop region of Chinese sturgeon mitochondrial DNA, and efficient specific amplification and absolute quantification of Chinese sturgeon eDNA in an environmental sample are realized by optimizing a reaction system and amplification conditions. Compared with the prior art, the method is simple and convenient to operate, does not need to perform harmful sampling on Chinese sturgeon individuals, is suitable for resource monitoring and protection evaluation in a large-range and dynamic environment, and has high sensitivity, high accuracy and high practical value.
Owner:EAST CHINA SEA ENVIRONMENTAL MONITORING CENT OF SOA +1

Primer and probe combination for subspecies typing identification of mycobacterium abscessus as well as method and application of primer and probe combination

The invention relates to the technical field of typing identification, in particular to a primer and probe combination for typing identification of mycobacterium abscessus subspecies and a method and application of the primer and probe combination. The primer and probe combination comprises three subspecies specific amplification primer pairs and three subspecies specific TaqMan fluorescent probes; the sequences of the three pairs of subspecies specific amplification primers are SEQ ID NO. 1 to SEQ ID NO. 6; wherein the TaqMan fluorescent probe comprises three TaqMan fluorescent probes corresponding to mycobacterium abscessus subtypes, two ends of each TaqMan fluorescent probe are respectively provided with a fluorophore and a quenching group, and each sequence is SEQ ID NO.7 to SEQ ID NO.9. The invention further discloses a kit with the PCR reaction liquid, and by means of the PCR reaction liquid, the mycobacterium abscessus can be rapidly and accurately detected and identified, and subspecies typing identification can be conducted on the mycobacterium abscessus.
Owner:HANGZHOU RED CROSS HOSPITAL (ZHEJIANG INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE HOSPITAL ZHEJIANG UNIVERSITY OF TRADITIONAL CHINESE & WESTERN MEDICINE)

A primer probe composition, kit and detection method for specifically detecting blattella germanica

PendingCN122357732ABlatella germanicaGene
The application relates to a primer probe composition, a kit and a detection method for specifically detecting Blattella germanica. The specific primer and TaqMan probe are designed and screened based on the specific sequence of the mitochondrial COI gene of Blattella germanica. The detection method has extremely high specificity, has no cross reaction with close species such as Periplaneta americana and Blattella germanica, has high sensitivity, the minimum detection limit is 1 fg / muL, and has good repeatability, with the variation coefficients of groups and between groups being less than 3%.
Owner:SHANGHAI INT TRAVEL HEALTH CARE CENT (PORT CLINIC OF SHANGHAI ENTRY-EXIT INSPECTION & QUARANTINE BUREAU)

TaqMan microfluidic chip technology-based primer probe pair for detecting pathogens of vector infectious diseases, microfluidic chip, kit as well as preparation method and application of primer probe pair

The invention belongs to the technical field of biological detection, and particularly relates to a primer probe pair, a microfluidic chip and a kit for detecting pathogens of vector infectious diseases based on a TaqMan microfluidic chip technology as well as a preparation method and application of the primer probe pair. Based on a TaqMan microfluidic chip technology, the invention provides a detection method for simultaneously detecting 28 kinds of pathogens of the disease-borne infectious diseases, and the related pathogens of the disease-borne infectious diseases comprise viruses, bacteria and parasites, and are wide in range and large in difference. The detection method provided by the invention has a low detection limit (5-20 copies / [mu] L); when the method is applied to an actual sample, the sensitivity, specificity, accuracy and precision are high, and compared with a gold standard method, the consistency is good; and compared with a traditional qPCR method, the method has the advantages that the detection time efficiency and the manpower and material consumption are greatly reduced, and the method is particularly suitable for disease monitoring and emergency disposal scenes with undefined pathogen spectrum, need of rapid and comprehensive troubleshooting and the like, and has a good application prospect.
Owner:CHENGDU CENT FOR DISEASE CONTROL & PREVENTION

Quadruple TaqMan real-time fluorescent quantitative PCR primer group and probe group for simultaneously detecting cGPV, MDPV, MDGPV and SBDSV and kit thereof

The invention relates to a quadruple TaqMan real-time fluorescent quantitative PCR (Polymerase Chain Reaction) primer group and a probe group for simultaneously detecting cGPV (Complementary Glutathione Virus), MDPV (Minimal Disease Papilloma Virus), MDGPV (Minimal Disease Papilloma Virus) and SBDSV (Sequence Broadcast DSV) and a kit thereof. The sequences of the primer group and the probe group are respectively shown as SEQ ID NO.1-12. The research successfully develops and verifies a multiple TaqMan-MGB real-time fluorescent PCR method capable of simultaneously detecting and distinguishing four important waterfowl parvoviruses (cGPV, MDPV, MDGPV and SBDSV). The method has good specificity, repeatability and high sensitivity. Compared with a conventional PCR method, the multiple detection method has the advantages that the clinical waterfowl parvovirus detection rate is remarkably improved, mixed infection can be effectively recognized, and the clinical diagnosis efficiency is greatly improved.
Owner:INST OF ANIMAL HUSBANDRY & VETERINARY FUJIAN ACADEMY OF AGRI SCI

Aptamer-based oxytetracycline fluorescent quantitative PCR (Polymerase Chain Reaction) detection kit as well as preparation method and detection method thereof

The invention discloses an aptamer-based oxytetracycline fluorescent quantitative PCR (Polymerase Chain Reaction) detection kit as well as a preparation method and a detection method thereof, and relates to the technical field of analysis and detection.The detection method comprises the following steps: mixing and incubating a sample to be detected, an oxytetracycline specific aptamer, a complementary chain and a magnetic bead curing capture probe; magnetically separating out the mixed and incubated magnetic beads, curing and capturing the probe, and washing to obtain a magnetic compound; adding PCR reaction liquid containing the primer pair and a TaqMan probe into the magnetic compound, carrying out fluorescent quantitative PCR amplification, and monitoring a fluorescent signal in real time to obtain a Ct value; establishing a standard curve between the oxytetracycline concentration and the Ct value of the fluorescent quantitative PCR, and determining the oxytetracycline concentration in the sample to be detected according to the standard curve. Based on an indirect competitive mechanism, through signal conversion design, combination of oxytetracycline and the aptamer is converted into quantitative analysis of free sDNA, and through integration of three technologies of aptamer free recognition, magnetic bead targeted capture and qPCR signal amplification, the sensitivity and anti-interference capability of oxytetracycline detection are improved.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Primer, TaqMan probe and kit for carrying out fluorescent PCR (Polymerase Chain Reaction) detection on bovine-derived ureaplasma

The invention discloses a primer, a TaqMan probe and a kit for carrying out fluorescent PCR (Polymerase Chain Reaction) detection on bovine-derived ureaplasma, and belongs to veterinary detection of animal epidemic diseases in the technical field of biological detection. The invention discloses a primer and a TaqMan probe which are used for carrying out fluorescent PCR (Polymerase Chain Reaction) detection on bovine-derived ureaplasma, and the primer and the TaqMan probe are an upstream primer U.diversum-F3, a downstream primer U.diversum-R3 and a TaqMan probe U.diversum-P3. The kit is simple and convenient in detection operation, strong in specificity, high in sensitivity and good in repeatability, and can be used for qualitatively detecting the bovine-derived ureaplasma; technical support is provided for detection of bovine-derived ureaplasma, epidemic situation epidemiological investigation, epidemic disease monitoring and purification, strain screening and quality monitoring and stable production and supply conservation in the vaccine production process, and the method plays an important role.
Owner:JINYUBAOLING BIO PHARMA CO LTD

TaqMan primer probe combination for detecting virulent and attenuated Newcastle disease as well as application and kit of TaqMan primer probe combination

The invention belongs to the technical field of biology, and discloses a TaqMan primer probe combination for detecting virulent and attenuated Newcastle disease, which comprises a virulent primer RT, a virulent probe RT-probe, a universal primer SRT and a universal probe SRT-probe, the virulent primer RT comprises an upstream primer RT-F and a downstream primer RT-R, and the universal primer SRT comprises an upstream primer SRT-F and a downstream primer SRT-R; a TaqMan probe fluorescent quantitative RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection method for virulent and attenuated NDV (Newcastle Disease Virus) established by using the TaqMan primer probe combination has no cross reaction on amplification of common avian viruses AIV, FADV, IBV and IBDV and has good specificity; the lowest detection concentration of virulent and attenuated Newcastle disease virus is 101 copies / uL, which is 100 times higher than that of a conventional RT-PCR method, and the kit has good sensitivity; and compared with the conventional RT-PCR method, the detection rate is 100% and is superior to that of the conventional RT-PCR method, and the detection result is consistent with the sequencing result.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY +1

Method for determining plasmid content in avian influenza tetravalent DNA vaccine and application thereof

This invention relates to a method and its application for determining the plasmid content in a quadrivalent avian influenza DNA vaccine. Belonging to the field of molecular biology, this invention aims to provide a TaqMan quantitative real-time PCR method capable of quantitatively determining the content of each plasmid component in a quadrivalent DNA vaccine. Specifically, this invention provides a primer and probe composition for detecting the content of individual plasmids in a quadrivalent avian influenza (H5+H7) DNA vaccine based on TaqMan quantitative real-time PCR. The composition includes primers with nucleotide sequences shown in SEQ ID NO: 5-6, 8-9, 11-12, and 14-15, and TaqMan probes with nucleotide sequences shown in SEQ ID NO: 7, 10, 13, and 16. This primer and probe composition can quantitatively determine the content of each plasmid component in the quadrivalent DNA vaccine, exhibiting good specificity and reproducibility.
Owner:HARBIN VETERINARY RESEARCH INSTITUTE CHINESE ACADEMY OF AGRICULTURAL SCIENCES (CHINA ANIMAL HEALTH & EPIDEMIOLOGY CENTER HARBIN BRANCH CENTER)

KIM-1 detection kit

The invention discloses a KIM-1 detection kit, which is designed based on an RT-LAMP method of Taqman, and comprises: a specific primer group comprising an outer primer and an inner primer; a TaqMan probe; the reaction enzyme mixture comprises BstDNA polymerase with strand displacement activity and AMV reverse transcriptase; the reaction buffer solution is prepared from Tris. HCl, KCl, (NH4) 2SO4 and Tween20; the quality control product comprises a positive control group, a negative control group and a blank plasmid control group. Compared with the prior art, the kit has the advantages that the KIM-1 detection kit is designed based on the RT-LAMP technology of Taqman, and quantitative detection of KIM-1 mRNA is achieved through the integrated reaction of reverse transcription, amplification and real-time fluorescence detection.
Owner:SHANDONG MAIZI BIOTECHNOLOGY CO LTD

Digital PCR kit for detecting red-eared slider and bullfrog and application thereof

The application provides a digital PCR kit for detecting highland invasive species red-eared slider and bullfrog, a set of red-eared slider specific primer probes, which are composed of a primer pair for a specific segment of a red-eared slider mitochondrial CYTB gene and a red-eared slider specific TaqMan probe matched therewith; a set of bullfrog specific primer probes, which are composed of a primer pair for a specific segment of a bullfrog mitochondrial 12S rRNA gene and a bullfrog specific TaqMan probe matched therewith, and a set of internal standard (IPC) primer pairs and internal standard TaqMan probes for monitoring the nucleic acid extraction and amplification reaction process monitoring. The application is provided with the primer pair for the specific segment of the red-eared slider mitochondrial CYTB gene and the red-eared slider specific TaqMan probe, the primer pair for the specific segment of the bullfrog mitochondrial 12S rRNA gene and the bullfrog specific TaqMan probe, and a common internal standard to construct a triple detection reaction system, thereby avoiding the quantitative uncertainty caused by the single species detection in the prior art which needs to be carried out in multiple reactions or relies on a standard curve for relative quantification.
Owner:西藏自治区生态环境监测中心 +2

TaqMan real-time fluorescent quantitative PCR probe primer combination and kit for identifying tilapia mossambica and application of TaqMan real-time fluorescent quantitative PCR probe primer combination and kit

The embodiment of the invention discloses a TaqMan real-time fluorescent quantitative PCR probe primer combination for identifying tilapia mossambica, a kit and application. Comprising a probe, an upstream primer and a downstream primer, the nucleotide sequence of the probe is 5 '-FAM-CGCTATACAGGG-MGB-3', the nucleotide sequence of the upstream primer is 5 '-GACTTTCCCCCATATTC-3', and the nucleotide sequence of the downstream primer is 5 '-GGGGTAGACAGTTCACCCTGTA-3'. Based on difference of mitochondrial control areas of different fishes, the TaqMan probe real-time fluorescent PCR detection method established by designing specific oligonucleotide primers and probes can effectively distinguish tilapia homosambica from other fishes, has excellent specificity and sensitivity in the aspect of identifying tilapia homosambica species, and can be used for detecting the species of tilapia homosambica. The detection accuracy is greatly improved, meanwhile, the detection time is shortened, the effects of stability, reliability, short period and low cost are achieved, and the actual application requirements are met.
Owner:KUNMING INST OF ZOOLOGY CHINESE ACAD OF SCI

Specific snp site primer combination for identifying taihe and wuji breeds and application thereof

The application discloses a specific SNP site primer combination for identifying Taihe black-bone chicken varieties and application thereof. A chicken pan-genome containing a chicken reference genome GRCg7b and 2.49 Gb pan-sequence is taken as reference, WGS data of Taihe black-bone chicken and related chicken varieties is analyzed and screened to obtain two specific SNP sites, namely novel_th1 (G / T, dominant allele G) and novel_th2 (C / T, dominant allele C), wherein the T allele is medium to high frequency in most non-Taihe black-bone chicken varieties / strains. A FAM / VIC double-labeled TaqMan probe and a matching primer are designed based on the two sites to construct a real-time fluorescent quantitative PCR detection kit for joint typing of the two sites, and an amplification system and a Ct value judgment standard are established, so that 96 varieties / strains such as Taihe black-bone chicken, Zhushi chicken, other black-bone chicken, local chicken, white-feathered broiler and egg chicken can be quickly and accurately identified. The method has the advantages of high specificity, high sensitivity, simple operation and low cost, and is suitable for identification of authenticity of Taihe black-bone chicken and products thereof, purity monitoring and molecular-assisted breeding.
Owner:ZHEJIANG UNIV

Pig bocavirus G3 gene group SYBR Green I fluorescent quantitative PCR detection primer and application

The invention relates to the technical field of molecular biology, and particularly discloses a porcine bocavirus G3 gene group SYBR Green I fluorescent quantitative PCR (polymerase chain reaction) detection primer and application thereof. A synthetic primer is designed according to a highly homologous conserved region of a VP1 gene of a PBoV-G3 gene group, an SYBR Green I fluorescent quantitative PCR method for detecting PBoV-G3 is established, and the SYBR Green I fluorescent quantitative PCR method has the advantages of strong specificity, high sensitivity and good repeatability. Compared with a TaqMan probe method, the method has the advantages that no complex and expensive probe is used, and the detection cost is saved. Compared with common PCR, SYBR Green I fluorescent quantitative PCR can directly quantify the virus load without treatment after amplification, so that the possibility of pollution is reduced, and the method is more suitable for clinical detection of the porcine bocavirus G3 gene group.
Owner:HENAN UNIV OF URBAN CONSTR

Standard plasmid for detecting copy number of exogenous gene of recombinant CVA10 vaccine and its preparation and application

The application provides a standard plasmid for detecting the copy number of exogenous genes of a recombinant CVA10 vaccine, and a preparation method and application thereof. The standard plasmid of the application comprises an endogenous gene MOX fragment SEQ ID No. 1, an exogenous gene P1 fragment SEQ ID No. 2 and an exogenous gene 3CD fragment SEQ ID No. 3 which are connected in series in a cloning vector. The application constructs the standard plasmid, adopts Taqman probe-fluorescence quantitative PCR method, and simply, quickly, absolutely quantitatively and accurately analyzes the copy number of inserted exogenous genes, so that the detection time of the determination of the copy number of exogenous genes of the recombinant CVA10 vaccine is effectively shortened, repeated operation is facilitated, and the determination of the copy number of exogenous genes of the recombinant CVA10 vaccine based on the Hansenula platform and the verification of the genetic stability of the exogenous genes of the recombinant CVA10 vaccine have a wide application prospect.
Owner:BEIJING MINHAI BIOTECH

Dual real-time fluorescent quantitative TaqMan primer probe group, kit and detection method for simultaneously detecting sweet potato leaf curl virus and sweet potato arbuscular phytoplasma

The invention discloses a dual real-time fluorescent quantitative TaqMan primer probe group, a kit and a detection method for simultaneously detecting sweet potato leaf curl virus and sweet potato arbuscular phytoplasma, aiming at nucleotide sequences of SPLCV and SPWB genome sequencing, corresponding specific TaqMan detection primer groups and probe primers are designed in conservative segments, and are used for specific detection of SPLCV and SPWB; the invention also designs a fluorescent quantitative kit based on the primer probe group. According to the primer and the probe group, the targets of SPLCV and SPWB can be detected at the same time through one-time reaction, rapidness and convenience are achieved, the detection efficiency is high, and meanwhile the high detection sensitivity of 3.3 copies / uL is achieved and is 100 times that of common PCR. The TaqMan QPCR detection technology established aiming at the SPLCV and the SPWB solves the problems that the existing SPLCV and SPWB detection method is time-consuming and labor-consuming, poor in specificity and sensitivity, easy to cause pollution and the like, and provides a technical basis for early diagnosis of the SPLCV and the SPWB.
Owner:FUJIAN ACAD OF AGRI SCI +1

Primer, probe, method and kit for detecting methylation of MGMT gene CpG island

The invention discloses a primer, a probe, a method and a kit for detecting CG methylation of a CpG island of an MGMT gene. The primer comprises a specific primer for amplifying DNA fragments of five CG sites on the CpG island of the MGMT gene from sample nucleic acid and a fluorescent probe for presenting the obtained nucleic acid fragments. According to the primer, the probe, the method and the kit, the Taqman probe technology is adopted, the methylation frequency of the MGMT gene related to treatment medication can be detected, so that a basis is provided for clinical medication, and the method is good in specificity, high in accuracy and high in flux.
Owner:HANGZHOU ADICON CLINICAL LAB INC

A primer probe composition for detecting genetic stability of cells and application thereof

The application provides a primer probe composition for detecting genetic stability of cells and application thereof, the primer probe composition comprises primer pairs SEQ ID NO:1-2 and a probe SEQ ID NO:3 of a VEGF light chain gene, and further comprises primer pairs SEQ ID NO:4-5 and a probe SEQ ID NO:6 of a VEGF heavy chain gene. The application quantitatively detects the antibody light and heavy chain gene copy numbers in cells of different culture generations by fluorescence quantitative PCR based on a Taqman probe method, extracts cell genomic DNA and performs PCR amplification, and prepares a target gene standard product from the amplification product, thereby significantly improving the specificity and accuracy of quantitative detection of the gene copy number.
Owner:TOT BIOPHARM CO LTD

A method for the multiplex detection of ASFV, PCV2 and PCV3 suitable for rapid real-time fluorescent PCR

PendingCN122445863AAnimal virusMultiplex
The application relates to the technical field of animal virus molecular detection, and particularly discloses a multiple detection method for ASFV, PCV2 and PCV3 suitable for rapid real-time fluorescent PCR. Specific primers and TaqMan probes are designed according to the B646L gene of ASFV and the ORF1 gene conservative regions of PCV2 and PCV3, and the sequences are shown as SEQ ID NO:1-9. The primers and probes are optimized: avoiding strong GC anchoring at the 3' end of the primers, continuous AT series and G base at the 3' end of the probes, and shortening the length of the probes to adapt to rapid real-time fluorescent PCR. The minimum detection limit of the three viruses is not higher than 5 copies per muL, the detection is completed within 30 minutes, there is no cross reaction with 11 common pig pathogenic agents, the coefficient of variation is less than 2%, the sensitivity is high, the specificity is strong, the method is rapid and convenient, and is suitable for rapid diagnosis of mixed infection of ASFV, PCV2 and PCV3.
Owner:CHINA ANIMAL HEALTH & EPIDEMIOLOGY CENT

A microfluidic chip for multiplex differential diagnosis of different subtypes of avian influenza virus and its application

PendingCN122303487ADifferential diagnostic procedure is simpleThe result is accurateMultiplexDisease
This invention provides a microfluidic chip for the multiplex differentiation and diagnosis of different avian influenza virus subtypes and its application. Specifically, it is a microfluidic chip based on TaqMan probes that can simultaneously and rapidly differentiate and diagnose 25 avian influenza subtypes, enabling high-throughput simultaneous detection of multiple gene targets. This invention utilizes high-throughput microfluidic chip technology to simplify the differential diagnosis procedure for avian influenza virus subtypes, resulting in more accurate and time-saving results. It is more suitable for rapid clinical diagnosis of avian influenza, providing technical support for rapid clinical detection, diagnosis, and prevention of avian influenza, and is of great significance for epidemic prevention and control and safeguarding public health security.
Owner:CHINA ANIMAL HEALTH & EPIDEMIOLOGY CENT

Taqman probe qPCR detection primer group for detecting pathogenic vibrio alginolyticus, kit and application

The invention discloses a TaqMan probe qPCR (quantitative polymerase chain reaction) detection primer group for detecting pathogenic vibrio alginolyticus, a kit and application, and belongs to the technical field of molecular biology and pathogenic microorganism detection. The method comprises the following steps: designing a pair of specific primers and probes by taking the vops gene of the vibrio alginolyticus as a new target, connecting the vops gene with plasmids by amplifying the vops gene, constructing a recombinant plasmid standard substance, carrying out qPCR detection on the copy number of the vops gene of the vibrio alginolyticus by utilizing the designed specific primers and probes, and establishing a corresponding relationship between the vibrio alginolyticus and the vops gene. And the vibrio alginolyticus can be quantified through the copy number of the vops gene. On the basis of novel molecular target detection, no amplification signal exists for a detection sample which does not contain vibrio alginolyticus, and the specificity is good; the method is rapid and accurate in detection and high in sensitivity, the lower detection limit is as low as 100-level copies, non-specific amplification can be avoided, and operation is simple and rapid.
Owner:GUANGZHOU BAOHONG BIOTECHNOLOGY CO LTD +1

A feline calicivirus nucleic acid detection kit and detection method

PendingCN122279013AFeline calicivirus infectionHighly pathogenic
This invention discloses a feline calicivirus nucleic acid detection kit and detection method. The detection kit includes: (1) a nucleic acid enrichment module and (2) a TaqMan fluorescent PCR detection module. The beneficial effects are that the sensitivity is significantly improved, the operation is simplified, the functions are integrated, the pathogenicity is classified in one step (distinguishing between highly pathogenic strains and classic strains), the stability is excellent, and the specificity is strong.
Owner:SHANGHAI VOCATIONAL COLLEGE OF AGRI & FORESTRY +1

Multiple fluorescent quantitative PCR (polymerase chain reaction) detection method for detecting streptococcus equi subsp. Zooepidemicus virulent strain causing swine streptococcosis

The invention relates to a multiplex fluorescent quantitative PCR (polymerase chain reaction) detection method for streptococcus equi subsp. Zooepidemicus virulent strains causing swine streptococcosis, and belongs to the technical field of bacterial detection. The invention provides a primer probe group which can be used for simultaneously detecting M protein variable region genes (szm-variant) of streptococcus equi subsp.zooepidemicus, conserved genes (comB) in subsp.zooepidemicus and central nervous system infection related virulence genes (bifA) of streptococcus equi subsp.zooepidemicus through Taqman probe triple fluorescent quantitative PCR (Polymerase Chain Reaction), and is shown as SEQ ID NO.1-9 in a sequence table. The multiplex fluorescent quantitative PCR detection method for the streptococcus equi subsp. Zooepidemicus virulent strain causing the swine streptococcosis can complete nucleic acid amplification and result judgment within 1 hour. According to the detection method, the amplification result is judged through the threshold cycle number (Ct value), electrophoresis detection is not needed, and the problems of pollution, false positive and the like of an amplification product can be avoided. The detection method provided by the invention has the characteristics of simplicity, convenience and rapidness in operation, high specificity, high sensitivity and good stability.
Owner:NANJING AGRICULTURAL UNIVERSITY

A specific detection primer and detection method for parrot-origin reovirus RT-qPCR

PendingCN122629242AFluoProbesNucleotide
The application discloses a parrot-origin reovirus RT-qPCR specific detection primer and a detection method. The primer probe composition takes a S1 gene conservative region of the parrot-origin reovirus as an amplification target, and comprises a specific upstream primer, a downstream primer and a fluorescent probe. The nucleotide sequence of the upstream primer is shown as SEQ ID NO:1, the nucleotide sequence of the downstream primer PSRV-S1-R is shown as SEQ ID NO:2, and the nucleotide sequence of the fluorescent probe PSRV-S1-Probe is shown as SEQ ID NO:3. The application designs specific primers and a TaqMan probe for the parrot-origin reovirus, has an amplification signal for the PSRV, has no cross reaction with common pathogens such as APV, BFDV, FAdV, ARV, NDRV and parrot fever chlamydia, has good specificity, is accurate in quantification, has good repeatability and stability, and is simple in operation and high in flux.
Owner:WESTERN AGRI RES CENT OF CHINESE ACAD OF AGRI SCI