qPCR Master Kit v3 - Product Specifications
PathoSEEK® qPCR Master Kit v3 provides the core reagents required to run PathoSEEK® qPCR assays on a real-time qPCR platform. Relative to prior kit versions, v3 includes an increased quantity of enzyme in the qPCR Master Mix to accommodate the growing number of multiplexed presence/absence assays supported on the PathoSEEK® platform.
Kit Components:
The PathoSEEK® qPCR Master Kit v3 (Product SKU 420201) includes the following components:
- Reaction Buffer (10x)
- qPCR Master Mix (5x)
- Nuclease-Free Water
Component Specifications / Minimum Release Criteria
Each lot of the components below is tested against the following minimum release criteria prior to release.
3.1 qPCR Master Mix (5x)
|
Test / Parameter |
Minimum Release Criteria |
|---|---|
|
Functional Testing (qPCR) |
Master Mix is functionally tested in qPCR with human cDNA template, resulting in a standard curve with a calculated qPCR efficiency of 90–110%, and a dynamic range of 5 orders of magnitude. |
|
Non-Specific DNase Activity (16 hour, Master Mix) |
A 50 µl reaction in qPCR Master Mix containing 1 µg of T3 DNA, and a separate reaction containing Lambda-HindIII DNA, incubated for 16 hours at 37ºC, results in a DNA pattern free of detectable nuclease degradation as determined by agarose gel electrophoresis. |
|
qPCR DNA Contamination (E. coli Genomic) |
A minimum of 1 µl of qPCR Master Mix is screened for the presence of E. coli genomic DNA using SYBR® Green qPCR with primers specific for the E. coli 16S rRNA locus, quantified against a standard curve generated from purified E. coli genomic DNA. Measured contamination is ≤ 1 E. coli genome. |
|
RNase Activity Assay (4 Hour Digestion) |
A 10 µl reaction in Reaction Buffer containing 40 ng of a 300-base single-stranded RNA and a minimum of 1 µl of qPCR Master Mix is incubated at 37ºC for 4 hours. >90% of the substrate RNA remains intact as determined by gel electrophoresis using fluorescent detection. |
3.2 Reaction Buffer (10x)
|
Test / Parameter |
Minimum Release Criteria |
|---|---|
|
Conductivity |
The conductivity of Reaction Buffer is between 36 and 54 mS at 25°C. |
|
pH |
The pH of Reaction Buffer is between pH 7.8 and 8.0 at 25°C. |
|
Endonuclease Activity (Nicking) |
A 50 µl reaction in Reaction Buffer containing 1 µg of supercoiled PhiX174 DNA, incubated for 4 hours at 37°C, results in <10% conversion to the nicked form as determined by agarose gel electrophoresis. |
|
Non-Specific DNase Activity (16 hour) |
A 50 µl reaction in Reaction Buffer containing 1 µg of PhiX174-HaeIII DNA, incubated for 16 hours at 37ºC, results in a DNA pattern free of detectable nuclease degradation as determined by agarose gel electrophoresis. |
|
Functional Testing – Restriction Digest (MscI) |
A 50 µl reaction in Reaction Buffer plus 100 µg/ml Bovine Serum Albumin containing 1 µg of Lambda DNA and 1 unit of MscI, incubated for 1 hour at 37ºC, results in complete digestion of the substrate DNA as determined by agarose gel electrophoresis. |
|
Functional Testing – Restriction Digest (ClaI) |
A 50 µl reaction in Reaction Buffer plus 100 µg/ml Bovine Serum Albumin containing 1 µg of Lambda dam- DNA and 1 unit of ClaI, incubated for 1 hour at 37ºC, results in complete digestion of the substrate DNA as determined by agarose gel electrophoresis. |
|
RNase Activity |
A 10 µl reaction in Reaction Buffer containing 40 ng of a 300-base single-stranded RNA is incubated at 37ºC for 16 hours. >90% of the substrate RNA remains intact as determined by fluorescent detection. |
3.3 Nuclease-Free Water
|
Test / Parameter |
Minimum Release Criteria |
|---|---|
|
UV-Visible Scan |
A UV-Visible scan using a spectrophotometer covering the range of 200 nm to 800 nm results in no detectable peaks above background. |
|
Endotoxin Testing (Endosafe®) |
Each test channel of the cartridge is loaded with 25 µl of Nuclease-free Water and placed into the Endosafe MCS reader for analysis, resulting in a measurement of <0.01 EU/ml. |
|
Endonuclease Activity (Nicking) |
A 50 µl reaction in rCutSmart™ Buffer containing 1 µg of supercoiled PhiX174 DNA with Nuclease-free Water, incubated for 4 hours at 37ºC, results in <10% conversion to the nicked form as determined by agarose gel electrophoresis. |
|
Non-Specific DNase Activity (16 hour) |
A 50 µl reaction in rCutSmart™ Buffer containing 1 µg of PhiX174-HaeIII DNA with Nuclease-free Water, incubated for 16 hours at 37ºC, results in a DNA pattern free of detectable nuclease degradation as determined by agarose gel electrophoresis. |
|
qPCR DNA Contamination (E. coli Genomic) |
Nuclease-free Water is used to make a qPCR master mix and screened across a 96-well plate for the presence of E. coli genomic DNA using 40 cycles of SYBR® Green qPCR with primers specific for the E. coli 16S rRNA locus. Melt curve analysis results in <5% positive samples above background. |
|
RNase Activity (Extended Digestion) |
A 10 µl reaction in Reaction Buffer containing 40 ng of RNA transcript with Nuclease-free Water is incubated at 37ºC for 16 hours. No detectable degradation of the RNA is observed by gel electrophoresis using fluorescent detection. |