WO2006000140A1 - Amorces, sequences sondes et procedes utiles dans plusieurs dosages rt-pcr fluorescents en temps reel des sous-types h5, h7 et h9 du virus de la grippe aviaire - Google Patents
Amorces, sequences sondes et procedes utiles dans plusieurs dosages rt-pcr fluorescents en temps reel des sous-types h5, h7 et h9 du virus de la grippe aviaire Download PDFInfo
- Publication number
- WO2006000140A1 WO2006000140A1 PCT/CN2005/000667 CN2005000667W WO2006000140A1 WO 2006000140 A1 WO2006000140 A1 WO 2006000140A1 CN 2005000667 W CN2005000667 W CN 2005000667W WO 2006000140 A1 WO2006000140 A1 WO 2006000140A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sequence
- primer
- avian influenza
- probe
- bases
- Prior art date
Links
- 239000000523 sample Substances 0.000 title claims abstract description 71
- 241000712461 unidentified influenza virus Species 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003556 assay Methods 0.000 title abstract description 6
- 230000000295 complement effect Effects 0.000 claims abstract description 41
- 238000003757 reverse transcription PCR Methods 0.000 claims abstract description 37
- 206010064097 avian influenza Diseases 0.000 claims description 52
- 208000002979 Influenza in Birds Diseases 0.000 claims description 49
- 238000001514 detection method Methods 0.000 claims description 36
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 238000011144 upstream manufacturing Methods 0.000 claims description 20
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000012634 fragment Substances 0.000 abstract description 10
- 239000002773 nucleotide Substances 0.000 abstract description 9
- 125000003729 nucleotide group Chemical group 0.000 abstract description 9
- 230000003321 amplification Effects 0.000 description 12
- 238000003199 nucleic acid amplification method Methods 0.000 description 12
- 238000005457 optimization Methods 0.000 description 9
- 241000287828 Gallus gallus Species 0.000 description 8
- 235000013330 chicken meat Nutrition 0.000 description 8
- 125000006853 reporter group Chemical group 0.000 description 8
- 241000700605 Viruses Species 0.000 description 7
- 102000004190 Enzymes Human genes 0.000 description 6
- 108090000790 Enzymes Proteins 0.000 description 6
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 230000001717 pathogenic effect Effects 0.000 description 6
- 108090000623 proteins and genes Proteins 0.000 description 6
- 238000010791 quenching Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 108020000999 Viral RNA Proteins 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 4
- 102100034343 Integrase Human genes 0.000 description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 108010092799 RNA-directed DNA polymerase Proteins 0.000 description 3
- 239000000872 buffer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- 244000144977 poultry Species 0.000 description 3
- 235000013594 poultry meat Nutrition 0.000 description 3
- 241000271566 Aves Species 0.000 description 2
- 108060002716 Exonuclease Proteins 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 108010006785 Taq Polymerase Proteins 0.000 description 2
- 125000003275 alpha amino acid group Chemical group 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 241001493065 dsRNA viruses Species 0.000 description 2
- 102000013165 exonuclease Human genes 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000003753 real-time PCR Methods 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001018 virulence Effects 0.000 description 2
- 241000143437 Aciculosporium take Species 0.000 description 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 1
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 1
- 102000004163 DNA-directed RNA polymerases Human genes 0.000 description 1
- 108090000626 DNA-directed RNA polymerases Proteins 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- 241000712431 Influenza A virus Species 0.000 description 1
- 241000124008 Mammalia Species 0.000 description 1
- 108091034117 Oligonucleotide Proteins 0.000 description 1
- 238000012408 PCR amplification Methods 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 102000006382 Ribonucleases Human genes 0.000 description 1
- 108010083644 Ribonucleases Proteins 0.000 description 1
- 101710172711 Structural protein Proteins 0.000 description 1
- 206010042434 Sudden death Diseases 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- 241000439496 Varanus dumerilii Species 0.000 description 1
- JLCPHMBAVCMARE-UHFFFAOYSA-N [3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-[[3-[[3-[[3-[[3-[[3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-[[5-(2-amino-6-oxo-1H-purin-9-yl)-3-hydroxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(5-methyl-2,4-dioxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(6-aminopurin-9-yl)oxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-5-(4-amino-2-oxopyrimidin-1-yl)oxolan-2-yl]methyl [5-(6-aminopurin-9-yl)-2-(hydroxymethyl)oxolan-3-yl] hydrogen phosphate Polymers Cc1cn(C2CC(OP(O)(=O)OCC3OC(CC3OP(O)(=O)OCC3OC(CC3O)n3cnc4c3nc(N)[nH]c4=O)n3cnc4c3nc(N)[nH]c4=O)C(COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3COP(O)(=O)OC3CC(OC3CO)n3cnc4c(N)ncnc34)n3ccc(N)nc3=O)n3cnc4c(N)ncnc34)n3ccc(N)nc3=O)n3ccc(N)nc3=O)n3ccc(N)nc3=O)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cc(C)c(=O)[nH]c3=O)n3cc(C)c(=O)[nH]c3=O)n3ccc(N)nc3=O)n3cc(C)c(=O)[nH]c3=O)n3cnc4c3nc(N)[nH]c4=O)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)n3cnc4c(N)ncnc34)O2)c(=O)[nH]c1=O JLCPHMBAVCMARE-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000003149 assay kit Methods 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002299 complementary DNA Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000012228 culture supernatant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012149 elution buffer Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001917 fluorescence detection Methods 0.000 description 1
- 238000001215 fluorescent labelling Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- 238000007899 nucleic acid hybridization Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000007918 pathogenicity Effects 0.000 description 1
- 210000002381 plasma Anatomy 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010839 reverse transcription Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000013207 serial dilution Methods 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 210000003802 sputum Anatomy 0.000 description 1
- 208000024794 sputum Diseases 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000002255 vaccination Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/70—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving virus or bacteriophage
- C12Q1/701—Specific hybridization probes
Definitions
- the present invention relates to RT-PCR amplification primers and probes for highly pathogenic avian influenza H5, H7 and H9 subtype nucleotide fragments, and simultaneous typing assays for avian influenza ⁇ 5, ⁇ 7 and ⁇ 9 subtypes .
- Avian Influenza also known as European chicken or true chicken, is an acute highly contagious disease caused by influenza A virus. It is an internationally recognized devastating disease that can pass pigs or Other animals are transmitted to humans and therefore have important ecological and public health implications, especially for highly pathogenic avian influenza, which is classified as a Class A infectious disease by the World Organisation for Animal Health. '
- avian flu not only seriously harms birds, but also harms mammals, especially those that can infect people and cause death.
- the avian influenza virus belongs to the RNA virus. Like all RNA viruses, due to the lack of corrective function of RNA polymerase, the genome has a high error rate when it is transcribed, and its genome is segmented, which is prone to rearrangement. Virus has high
- the amino acid sequence of the HA cleavage site determines the virulence of avian influenza virus.
- the HA cleavage site of highly pathogenic avian influenza has 6 consecutive sites.
- Basic amino acids, while low pathogenic avian influenza has 2 basic amino acids.
- RT-PCR reverse transcription polymerase chain reaction
- RNA is reverse transcribed into cDNA and then the DNA fragment is rapidly amplified in vitro using DNA polymerase.
- Fluorescence real-time RT-PCR is based on common RT-PCR.
- a pair of primers is added to the amplification reaction system, and a specific fluorescent probe is added.
- the probe is labeled with a fluorescent reporter group at both ends.
- a fluorescent quenching group of oligonucleotides When the probe is intact, the fluorescent signal emitted by the reporter group is absorbed by the quenching group, so that the fluorescent signal emitted by the fluorescent group of the probe is not detected, and at the 5' end of the Taq enzyme during PCR amplification.
- Exonuclease activity cleaves the fluorescent probe that specifically binds to the amplified fragment of interest, so that the fluorescent reporter group is released from the reaction system, and the shielding effect of the fluorescence quenching group is removed. At this time, the fluorescence report can be detected.
- the fluorescence signal of the group, the amount of fluorescence signal is proportional to the amount of amplification product.
- Multiple real-time fluorescent PCR is a method of adding multiple pairs of primers and probes in the same reaction system and simultaneously detecting multiple target fragments, which is of great significance in the identification of disease-like diseases and the typing of 'multi-serotype pathogens.
- the fluorescent labeling probe is used to further improve the specificity and accuracy of the detection;
- the detection is more sensitive by automatically detecting the change of the fluorescent signal; Perform a fully enclosed detection reaction without post-processing the PCR product to avoid contamination; d. Monitor the results in real time,
- the object of the present invention is to provide primers, probe sequences and methods for multiple real-time fluorescent RT-PCR detection of avian influenza H5, H7 and H9 subtypes.
- the object of the present invention can be achieved by the following technical solutions: Primers and fluorescent probes are designed separately by analyzing all reported avian influenza H5, H7 and H9 subtype genomic sequences. Based on the conventional RT-PCR detection technique, a nucleotide probe labeled with two fluorophores is added, and the fluorescent reporter group (R) is labeled at the 5' end of the probe, and the fluorescence quenching group (Q) Marked at the 3' end of the probe, the two constitute an energy transfer structure, that is, the fluorescence emitted by the fluorescent reporter group can be absorbed by the fluorescence quenching group, and when the distance is far, the inhibition is weakened, and the reporter group is weakened. The fluorescence signal is enhanced.
- the probe hybridizes to the amplified fragment of interest on the template. Since the Taq enzyme has the exonuclease activity at the 5' end to the 3' end, the probe is cleaved during the amplification extension phase, and the fluorescence quenching group is The inhibition of Q) disappeared, and the fluorescent signal of the reporter group was enhanced to detect the H5, H7 and H9 subtypes of avian influenza.
- the principle of fluorescence RT-PCR detection is shown in Figure 1. Primer and probe design: Multiple pairs of primers and probes were designed by comparing the genomic sequences of all reported avian influenza virus H5, H7 and H9 subtypes, respectively, and selecting non-secondary structure and highly conserved nucleotide segments.
- the primers are generally about 20 bases in length, and there are no complementary sequences between the primers and the primers, and they should specifically target the avian influenza virus H5, H7 and H9 subtypes, and there is no cross reaction between them, which can be in one reaction tube. It is also used to distinguish between H5, H7 and H9 subtypes.
- the primer sequences and probe sequences for nucleotide amplification for detecting the avian influenza H5 subtype include: the upstream primer ⁇ 5 ⁇ 673 sequence is GACCAGCTACCATGATTGCCA and the complementary sequence is CTGGTCGATGGTACTAACGGT, and the downstream primer H5pr l 600 sequence is GGAGTCAAATTTGGA ATCAATGG and the complementary sequence is The primer pair consisting of CCTCAGTTTAA ACCTTAGTTACC and the upstream primer position of the primer pair extend 10 bases toward the 5' end, and the downstream primer position extends 10 bases toward the 3' end and 10 bases toward the 5' end.
- the primer sequence and the complementary sequence obtained in the region range is TGCTAGGGAACTCGCCA, the complementary sequence is ACGATCCCTTGAGCGGT, and the 3 ⁇ 4 probe extends 10 bases toward the 3' end and 10 base regions toward the 5' end. Probe sequences and complementary sequences obtained in the range.
- Primer sequences and probe sequences for nucleotide amplification for detecting avian influenza H7 subtype include -
- the primer pair consisting of the upstream primer H7pfl292 sequence is CGTGTCCAATTAATGACATTTCC and the complementary sequence is GCACAGGTTAATTACTGTAAAGG
- the downstream primer H7prl202 sequence is ATCACAGGCAA ATTGAATCGT and the complementary sequence is TAGTGTCCGTTTAACTTAGCA
- the upstream primer position of the primer pair extends 10 bases toward the 5' end.
- the probe H7pbl247 sequence is TTTGAGCTGATAGACAATGA and the complementary sequence is AAACTCGACTATCTGTTACT, and
- the probe extends 10 bases in the 3' end direction and a probe sequence and a complementary sequence extending in the range of 10 bases in the 5' end direction.
- the primer pair consisting of the upstream primer ⁇ 7 ⁇ 664 sequence is GCCATTGCAATGGGCCT and the complementary sequence is CGPTA ACGTTACCCGGA
- the downstream primer H7prl736 sequence is AGTAGAAAC 'AAGGGTGTTTTTTCCA and the complementary sequence is TCATCTTTGTTCCC ACAAAAAAGGT
- the upstream primer position of the primer pair extends toward the 5' end.
- the primer sequence and the complementary sequence obtained by extending the base primer position by 10 bases in the 3' end direction and extending 10 bases in the 5' end direction;
- the probe H7pbl712 sequence is CGGTGCACTATTTGTATA and the complementary sequence is GCCACGTGATAAACATAT
- Primer sequences and probe sequences for nucleotide amplification for detecting avian influenza H9 subtype include: CCTGTGACACATGCCAAAGA from the upstream primer H9pfl51 sequence and GGACACTGTGT ACGGTTTCT as the complementary sequence, CTTTCGACRATGTAGGACCATTC for the downstream primer H9pr302 sequence and GAAAGCTGYTACATCCTGGTAAG for the complementary sequence
- the primer pair and the upstream primer position of the primer pair extend 10 bases in the 5' end direction, and the downstream primer position extends 10 bases in the 3' end direction and 10 bases in the 5' end direction.
- the primer sequence and the complementary sequence; the probe H9pbl75 sequence is CTCCACACAGAGCACAAT and the complementary sequence is GAGGT GTGTCTCGTGTTA, and the probe is extended to 10 bases in the 3' end direction and 10 bases in the 5' end direction. Needle sequence and complementary sequence.
- the salient features of the present invention are: Fully utilizing the high-efficiency amplification of PCR technology, the good specificity of nucleic acid hybridization, and the rapid sensitivity of fluorescence detection technology, a high-pathogenic avian influenza H5 and a single detection operation can be performed on one sample.
- the detection of H7 and H9 subtypes can determine the serotype, and has the advantages of reliable and accurate results, simple operation, time and labor saving, reduced detection cost and improved detection efficiency.
- BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 Schematic diagram of real-time fluorescence RT-PCR detection of Taqman probe.
- FIG. 1 Avian influenza H5, H7 and H9 subtypes of triple real-time fluorescence RT-PCR detection curve
- Figure 3 Avian influenza H5 and H9 subtype double real-time fluorescence RT-PCR detection curve.
- Figure 4 Avian influenza H7 and H9 subtypes of double real-time fluorescence RT-PCR detection curve.
- Figure 5 Avian influenza H5 and H7 subtypes of double real-time fluorescence RT-PCR detection curve.
- the specific method of establishment and optimization of the reaction system using the inactivated avian influenza virus H5, H7 and H9 subtype strains as samples to be tested, using the QIAamp Viral RNA Mini kit to extract viral genomic RNA, separately stored and stored in a 20 ⁇ spare.
- the concentration of MgCl 2 is increased from 1 mmol/L to 10 mmol/L in 1 mmol/L under the same conditions in the reaction system, and 5 mmol is selected after repeated experiments.
- /L is the magnesium ion concentration in the kit reaction system.
- AMV RnaseXL reverse transcriptase
- Taq enzyme Optimization of the amount of Taq DNA polymerase (Taq enzyme) By comparing the optimization results of the amount of Taq enzyme (in units of Unit), 5U was selected as the amount of Taq enzyme in the kit reaction system.
- the probe concentrations of avian influenza H5, H7 and H9 subtypes were from ⁇ . ⁇ ⁇ mol/L to 0.5 ⁇ mol/'L, respectively, under the same conditions in the reaction system. The ratio was measured after serial dilution, and the final concentration of the optimal probe was determined to be 0.2 ⁇ mol/L by analysis and comparison of the test results.
- Table 1 Avian influenza ⁇ 5, ⁇ 7 and ⁇ 9 subtypes of triple real-time fluorescence RT-PCR reaction of various components
- each reagent should be adjusted according to the ratio.
- the collection of the fluorescent signal of the reaction tube in the instrument should be set.
- the selected fluorescent detection channel is identical to the fluorescent reporter group labeled by the probe. .
- the specific setting method varies depending on the instrument. Refer to the instrument manual.
- Method 1 Use QI Aamp Viral RNA Mini kit to extract genomic RNA of avian influenza virus from various sources. The specific steps are as follows:
- a Take 560 ⁇ l of AVL buffer containing carrier RNA into a 1.5 ml microcentrifuge tube; b. Add 140 ⁇ l of plasma, serum, urine sample, cell culture supernatant or swab to PBS wash solution. Oscillating for 15 sec; - c incubation at room temperature (15-25 ⁇ ) for 10 min;
- Solubility without RNase (fully boil and mix, 'or repeatedly blow with a gun), store at -20 °C for later use.
- test results can be monitored in real time.
- double-phase real-time fluorescent RT-PCR was performed using specific primers and probes for avian influenza ⁇ 5 and ⁇ 9 subtypes to detect positive samples containing genomic RNA of avian influenza virus H5 and H9 subtypes, and the results were obtained.
- Specific fluorescence curve Figure 3
- double-phase real-time fluorescent RT-PCR was performed using specific primers and probes for the influenza ⁇ 7 and ⁇ 9 subtypes to detect positive samples containing genomic RNA of avian influenza virus H7 and H9 subtypes.
- Specific fluorescence curve ( Figure 4).
- the reagents and positive control nucleotides required for real-time fluorescent RT-PCR were assembled into avian influenza H5, H7 and H9 subtypes.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Wood Science & Technology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Virology (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410027815 CN1670221A (zh) | 2004-06-25 | 2004-06-25 | 用于禽流感h5、h7和h9亚型多重实时荧光rt-pcr检测的引物、探针序列和方法 |
CN200410027815.5 | 2004-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006000140A1 true WO2006000140A1 (fr) | 2006-01-05 |
Family
ID=35041656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2005/000667 WO2006000140A1 (fr) | 2004-06-25 | 2005-05-13 | Amorces, sequences sondes et procedes utiles dans plusieurs dosages rt-pcr fluorescents en temps reel des sous-types h5, h7 et h9 du virus de la grippe aviaire |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN1670221A (fr) |
WO (1) | WO2006000140A1 (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2021516A1 (fr) * | 2006-04-28 | 2009-02-11 | Siemens Healthcare Diagnostics Inc. | Amorces et sondes d'acide nucléique permettant de détecter les virus de la grippe humaine et de la grippe aviaire |
CN102433395A (zh) * | 2011-12-27 | 2012-05-02 | 中国检验检疫科学研究院 | 一种检测禽流感病毒通用亚型的液相芯片方法 |
CN102433396A (zh) * | 2011-12-27 | 2012-05-02 | 中国检验检疫科学研究院 | 一种检测禽流感病毒h7亚型的液相芯片方法 |
CN103276109A (zh) * | 2013-05-10 | 2013-09-04 | 浙江省疾病预防控制中心 | 禽流感h7n9病毒rt-pcr检测试剂盒及检测方法 |
CN111235321A (zh) * | 2020-04-15 | 2020-06-05 | 福建省农业科学院畜牧兽医研究所 | 一种番鸭呼肠孤病毒和新型鸭呼肠孤病毒双重TaqMan荧光定量RT-PCR检测试剂盒 |
CN111518954A (zh) * | 2020-05-07 | 2020-08-11 | 广西壮族自治区兽医研究所 | H5和n8亚型禽流感病毒双重纳米pcr检测的引物组、试剂盒及方法 |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100368560C (zh) * | 2005-09-22 | 2008-02-13 | 广州华银医药科技有限公司 | 一种呼吸道病原体的实时荧光聚合酶链式反应检测方法 |
CN100378230C (zh) * | 2005-12-01 | 2008-04-02 | 上海交通大学 | H5、h7、h9亚型禽流感病毒的实时荧光定量pcr检测方法 |
CN101058833B (zh) * | 2007-02-08 | 2012-05-23 | 中国检验检疫科学研究院动植物检疫研究所 | 用于禽流感病毒检测和分型的引物系统和方法 |
CN101736090B (zh) * | 2008-11-07 | 2012-06-27 | 中山大学达安基因股份有限公司 | 一种实时荧光rt-pcr检测h5亚型禽流感病毒的试剂盒 |
CN101886136B (zh) * | 2009-05-12 | 2012-10-17 | 中山大学达安基因股份有限公司 | 一种实时荧光rt-pcr检测甲型h1n1流感病毒的试剂盒 |
CN101798602B (zh) * | 2010-03-18 | 2012-04-25 | 山东出入境检验检疫局检验检疫技术中心 | 复合检测禽流感和新城疫病毒的试剂盒及检验方法 |
CN102260749B (zh) * | 2011-04-25 | 2012-12-19 | 吉林农业大学 | H5、h7、h9亚型禽流感病毒检测试剂盒 |
CN103320528B (zh) * | 2013-06-03 | 2014-12-10 | 深圳太太基因工程有限公司 | 一种用于以荧光rt-pcr检测样品中禽流感病毒的引物对、探针和包含其的试剂盒 |
CN103805719B (zh) * | 2014-02-20 | 2016-03-09 | 广西壮族自治区兽医研究所 | 鸡新城疫病毒、h9亚型禽流感病毒和禽肺炎病毒三重rt-pcr试剂盒及其应用 |
CN103789454B (zh) * | 2014-02-26 | 2016-05-25 | 广西壮族自治区兽医研究所 | H9亚型禽流感病毒和鸭坦布苏病毒二重rt-pcr检测试剂盒 |
CN103993105B (zh) * | 2014-06-13 | 2016-01-27 | 广西壮族自治区兽医研究所 | 鸭坦布苏病毒和禽流感病毒多重pcr检测试剂盒 |
CN104531901B (zh) * | 2014-12-31 | 2017-08-25 | 四川圣迪乐村生态食品股份有限公司 | 一种同时检测禽4种呼吸道疾病病原的pcr检测方法 |
CN106435024B (zh) * | 2016-09-26 | 2020-02-14 | 南京农业大学 | 检测禽流感病毒亚型的荧光定量pcr引物、探针和试剂盒及检测方法 |
CN107937611B (zh) * | 2017-12-18 | 2020-09-04 | 北京卓诚惠生生物科技股份有限公司 | 检测禽流感病毒亚型h5、h7和h9的引物探针组 |
CN107937622A (zh) * | 2018-01-16 | 2018-04-20 | 北京大有泰莱生物技术有限公司 | 一种禽流感病毒检测方法及其试剂盒 |
CN108300809A (zh) * | 2018-02-23 | 2018-07-20 | 湖南国测生物科技有限公司 | 一种禽流感h5、h7以及h9亚型的荧光pcr检测试剂盒、制备方法及使用方法 |
CN108950081A (zh) * | 2018-08-10 | 2018-12-07 | 中国动物卫生与流行病学中心 | 一种h7亚型禽流感病毒的实时荧光定量rt-pcr检测方法 |
CN110885901B (zh) * | 2018-09-10 | 2022-11-25 | 中国动物疫病预防控制中心(农业部屠宰技术中心) | 用于鉴别h5和h7高致病变异型禽流感病毒的冻干微芯片、试剂盒及方法 |
-
2004
- 2004-06-25 CN CN 200410027815 patent/CN1670221A/zh active Pending
-
2005
- 2005-05-13 WO PCT/CN2005/000667 patent/WO2006000140A1/fr active Application Filing
Non-Patent Citations (3)
Title |
---|
LIU Y. ET AL, JOURNAL OF JILIN AGRICULTURAL UNIVERSITY, vol. 26, no. 1, February 2004 (2004-02-01), pages 93 - 96 * |
ZHANG H.X. ET AL, INSPECTION AND QUARANTINE SCIENCE, vol. 14, no. 1, February 2004 (2004-02-01), pages 1 - 5 * |
ZHU W.S. ET AL, CHINESE JOURNAL OF MEDICINAL GUIDE, vol. 5, no. 1, 2003, pages 27 - 30 * |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2021516A1 (fr) * | 2006-04-28 | 2009-02-11 | Siemens Healthcare Diagnostics Inc. | Amorces et sondes d'acide nucléique permettant de détecter les virus de la grippe humaine et de la grippe aviaire |
EP2021516A4 (fr) * | 2006-04-28 | 2009-05-20 | Siemens Healthcare Diagnostics | Amorces et sondes d'acide nucléique permettant de détecter les virus de la grippe humaine et de la grippe aviaire |
US7993838B2 (en) | 2006-04-28 | 2011-08-09 | Siemens Healthcare Diagnostics Inc. | Nucleic acid primers and probes for detecting human and avian influenza viruses |
CN101460632B (zh) * | 2006-04-28 | 2012-11-14 | 西门子医疗保健诊断公司 | 用于检测人和禽类流感病毒的核酸引物及探针 |
CN102433395A (zh) * | 2011-12-27 | 2012-05-02 | 中国检验检疫科学研究院 | 一种检测禽流感病毒通用亚型的液相芯片方法 |
CN102433396A (zh) * | 2011-12-27 | 2012-05-02 | 中国检验检疫科学研究院 | 一种检测禽流感病毒h7亚型的液相芯片方法 |
CN102433395B (zh) * | 2011-12-27 | 2013-10-09 | 中国检验检疫科学研究院 | 一种检测禽流感病毒通用亚型的液相芯片方法 |
CN103276109A (zh) * | 2013-05-10 | 2013-09-04 | 浙江省疾病预防控制中心 | 禽流感h7n9病毒rt-pcr检测试剂盒及检测方法 |
CN111235321A (zh) * | 2020-04-15 | 2020-06-05 | 福建省农业科学院畜牧兽医研究所 | 一种番鸭呼肠孤病毒和新型鸭呼肠孤病毒双重TaqMan荧光定量RT-PCR检测试剂盒 |
CN111518954A (zh) * | 2020-05-07 | 2020-08-11 | 广西壮族自治区兽医研究所 | H5和n8亚型禽流感病毒双重纳米pcr检测的引物组、试剂盒及方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1670221A (zh) | 2005-09-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2006000140A1 (fr) | Amorces, sequences sondes et procedes utiles dans plusieurs dosages rt-pcr fluorescents en temps reel des sous-types h5, h7 et h9 du virus de la grippe aviaire | |
CN111004870B (zh) | 新型冠状病毒n基因核酸检测试剂盒 | |
JP6329370B2 (ja) | 呼吸器系ウイルスによる疾患の同時診断キット | |
WO2018184532A1 (fr) | Kit de détection pour pathogènes des voies respiratoires communes combinant des rt-pcr multiples avec une puce de gène | |
CN111020064A (zh) | 新型冠状病毒ORF1ab基因核酸检测试剂盒 | |
CN103484564B (zh) | 一种高灵敏度检测和鉴定人冠状病毒的方法 | |
CN108330210B (zh) | 寨卡病毒、登革热病毒和基孔肯雅病毒核酸检测试剂盒及其用途 | |
CN111500771A (zh) | 一种新型冠状病毒SARS-CoV-2检测的引物组和试剂盒 | |
CN106811550A (zh) | 一种草鱼呼肠孤病毒ⅱ型疫苗株和野毒株鉴别引物及含有其的试剂盒与诊断检测方法 | |
CN113278735A (zh) | 一种人呼吸道病毒核酸多重检测引物、探针及试剂盒 | |
CN116024208B (zh) | 一种单次反应可同时检测26种猪疫病的试剂盒 | |
CN103740863B (zh) | 检测禽流感病毒h7n9亚型的rt-lamp试剂盒 | |
Coiras et al. | Oligonucleotide array for simultaneous detection of respiratory viruses using a reverse‐line blot hybridization assay | |
CN113652505A (zh) | 检测新型冠状病毒及其voc-202012/01突变株的方法和试剂盒 | |
CN110656163A (zh) | 一种双标记报告荧光多重病原体核酸检测方法 | |
CN107287352A (zh) | 鸭肠炎病毒和鸭肝炎病毒快速检测的探针引物组及其方法 | |
CN115725788A (zh) | 一种用于检测猫细小病毒的引物和TaqMan探针及其应用 | |
WO2022177066A1 (fr) | Détection rapide du type de virus de la grippe basée sur la technique des ciseaux génétiques | |
CN111647683B (zh) | 一种新冠状病毒2019-nCoV核酸检测试剂盒及其应用 | |
CN107326103A (zh) | 一种三重rt‑pcr特异性扩增引物组及三重鉴定的rt‑pcr检测方法 | |
CN101538618B (zh) | 人类偏肺病毒的荧光定量检测试剂盒 | |
CN111440902A (zh) | 一种猪流行性腹泻病毒检测引物、试剂盒及其应用 | |
CN111961758B (zh) | N-dmv和n-dhclv双重实时荧光定量pcr鉴别检测引物及试剂盒 | |
KR100796314B1 (ko) | 곤충 rRNA 증폭용 프라이머세트를 이용한역전사―중합효소연쇄반응 방법 | |
CN107287346B (zh) | 用于禽流感病毒n亚型基因分型的多重荧光定量pcr检测试剂盒及其应用 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
122 | Ep: pct application non-entry in european phase |