JC virus detection method, kit and application of kit
A detection method, JC virus technology, applied in the direction of determination/inspection of microorganisms, biochemical equipment and methods, etc., can solve problems such as inability to achieve, and achieve the effects of preventing pollution, high sensitivity and low cost
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Embodiment 1
[0054] This embodiment provides the method for obtaining the sample to be tested:
[0055] JCV DNA was extracted from human urine samples by magnetic bead method to obtain samples to be tested. The magnetic bead method extracts nucleic acid using a unique lysate and proteinase K to quickly lyse the cells and inactivate intracellular nucleases, then the genomic DNA is selectively adsorbed to the magnetic beads, and then through a series of rapid rinsing-separation steps, the inhibitor removal solution and washing solution to remove impurities such as cell metabolites and proteins, and finally the pure genomic DNA can be eluted from the magnetic beads with double distilled water.
[0056] 1. Reagents and components used to extract JCV DNA from human urine samples by magnetic bead method
[0057] (1) Lysis solution: 100mL dosage as an example, 40.47g of guanidine hydrochloride, 0.5132g of tris(hydroxymethyl)aminomethane, 0.0932g of sodium chloride, 6.78mL of Tween-20, add 16mL o...
Embodiment 2
[0077] Qualitative detection of JC virus
[0078] Present embodiment 2 provides a kind of qualitative detection method of JC virus:
[0079] 1. PCR amplification reaction of JCV DNA
[0080] 1) Reagents and components used in the PCR amplification reaction of JCV DNA
[0081] (1) JCV primer probe mixture:
[0082] The specific composition of the JCV primer-probe mixture is: upstream primer: JCV-F (50 μM) 0.6 μL, downstream primer: JCV-R (50 μM) 0.6 μL, Taqman fluorescent probe JCV-FP (20 μM) 0.5 μL, purified water 3.3 μL.
[0083] The preferred components of the JCV primer-probe mixture are: upstream primer JCV-F (50 μM) 0.6 μL, downstream primer JCV-R (50 μM) 0.6 μL, Taqman fluorescent probe JCV-FP (20 μM) 0.5 μL, internal standard upstream Primer (20 μM) 0.5 μL, internal standard downstream primer (20 μM) 0.5 μL, internal standard probe (10 μM) 0.375 μL, purified water 1.925 μL.
[0084] The upstream primer JCV-F comprises the base sequence shown in SEQ ID NO:1;
[008...
Embodiment 3
[0108] Present embodiment 2 provides a kind of quantitative detection method of JC virus:
[0109] 1. PCR amplification reaction of JCV DNA
[0110] 1) Reagents and components used in the PCR amplification reaction of JCV DNA
[0111] (1) JCV primer probe mixture:
[0112] The components of the JCV primer-probe mixture are: upstream primer: JCV-F (50 μM) 0.6 μL, downstream primer: JCV-R (50 μM) 0.6 μL, Taqman fluorescent probe JCV-FP (20 μM) 0.5 μL, internal standard Upstream primer (20 μM) 0.5 μL, internal standard downstream primer (20 μM) 0.5 μL, internal standard probe (10 μM) 0.375 μL, purified water 1.925 μL. The said upstream primer JCV-F comprises the base sequence shown in SEQ ID NO:1;
[0113] The downstream primer JCV-R comprises the base sequence shown in SEQ ID NO:2;
[0114] The Taqman fluorescent probe JCV-FP comprises the base sequence shown in SEQ ID NO: 3, the fluorescent reporter group is 6-FAM; the fluorescent quencher group is BHQ1.
[0115] (2) PCR r...
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