Heat-Labile Exonuclease I (HL-ExoI) is a 3’ – 5’ exonuclease, specific for single stranded DNA. The enzyme is recombinantly produced in E. coli. HL-ExoI is active at 25 – 37°C and inactivated by 1 minute incubation at 80°C or 15 minutes at 60°C.
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Heat-Labile Exonuclease I (HL-ExoI) is a 3’ – 5’ exonuclease, specific for single stranded DNA. The enzyme is recombinantly produced in E. coli. HL-ExoI is active at 25 – 37°C and inactivated by 1 minute incubation at 80°C or 15 minutes at 60°C.
HL-ExoI is used for degradation of ssDNA such as primers and oligos. It is also ideal for treatment of sensitive samples and useful in the development of novel molecular diagnostics applications.
Key Features
3’-5’ exonuclease specific for single stranded DNA
High activity at 25 – 37°C
Easily heat-inactivated by 1 min incubation at 80°C, or 15 min at 60°C
Moderate salt tolerance
Application
Removal of primers post-PCR prior to DNA sequencing or SNP detection
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ArcticZymes is dedicated to the quality of our products. We manufacture all products at our ISO 13485 certified facility in Norway.
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DirectBlood Genotyping PCR Kit
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DirectBlood Genotyping PCR Kit is a novelty on the market. It allows genotyping in real-time and without any previous DNA isolation. You simply save time and money: directly use EDTA blood without any extraction steps. The DirectBlood Genotyping PCR Kit is optimized to function with a wide range of different SNPs to detect possible nucleotide variations. It has been successfully tested with a variety of hydrolysis probes and hybridization probes.The setup of a genotyping experiment can not be simpler anymore: Mix primers&probes with the Genotying mastermix, add the respective blood sample and start real-time PCR, this is it.
It is even more simple: store the DirectBlood Genotyping PCR Kit at room-temperature. A cool chain is not needed anymore. The included master mix is freeze-dried and dissolves within a few seconds after addition of the rehydration buffer.Additionally, we have already established SNP-assays for you. In case, you can not find your respective SNPs, please provide us with the rs-number of the SNP-assays your are interested-in and you will receive an individual quotation from us.For research use and further manufacturing.In case you are aiming to use our RUO products as components or for your development of e.g. an IVD medical device, please contact us.
DirectBlood Genotyping Kit (#5000) performance with a hydrolysis probe assay
The DirectBlood Genotyping Kit is compatible with a wide range of assays: Here we are detecting a SNP in the Factor V gene (rs6025; G1691A), which is connected with a higher risk for venous thrombosis, with a fluorescent hydrolysis probe assay.
Homozygous wild type blood samples will show a strong signal and amplification plot (blue curve) in channel 2 (Cy5) and none or a very low signal
(red curve) in the other channel 1 (ROX).
Heterozygous blood samples will give an intermediate signal and amplification plots with very similar intensities in both channels 1 and 2 (blue and red curve). Homozygous mutant blood samples, channel 1 (ROX) will show a strong signal and amplification plot (red curve) and channel 2 (Cy5) none or a very low signal and amplification plot (blue curve). So the signals are reversed on homozygous mutant samples.
DirectBlood Genotyping Kit performance with a hybridization probe assay
Here we are detecting the same SNP in the Factor V gene (rs6025; G1691A), which is connected with a higher risk for venous thrombosis, with a fluorescent hybridization probe assay.
Three blood samples with known genotype were used. All the genotypes can clearly be identified. The blue curve shows the specific wild type (homozygous G;G) peak at 61°C. The red curve shows the specific mutant (homozygous A;A) peak at 53°C. A heterozygous case (A;G) will result in both melting curve peaks, respectively at the same specific temperature for wild type and mutant (orange curve).
Document
DirectBlood Genotyping PCR Kit is a novelty on the market. It allows genotyping in real-time and without any previous DNA isolation. You simply save time and money: directly use EDTA blood without any extraction steps. The DirectBlood Genotyping PCR Kit is optimized to function with a wide range of different SNPs to detect possible nucleotide variations. It has been successfully tested with a variety of hydrolysis probes and hybridization probes.
The series of DNA Size Selection Kits (Magnetic Beads) were developed for DNA size selection using magnetic beads. A total of 11 kits are available, with different selection ranges spanning from 50 bp to over 10 kb. The kits provide a simple and quick approach for the enrichment of a specific range of DNA fragments. The kit workflow allows double-sided or single-sided size selection for specific size cutoffs.
Gel images of different ranges of size selection. Sheared human genomic DNA was used as input.
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DNA size selection is a selective capture of DNA fragments of a specific range of size for next-generation sequencing (NGS) library preparations, PCR, ChIP assay, DNA ligations, endonuclease digestions, adapter removal, and other genomics and molecular biology applications. DNA size selection is preferred after NGS library prep in most of the cases. The NGS library preparation is related to the quality of the sequencing data. Precise NGS library size selection can increase sequencing efficiency, improve data quality, and reduce costs.
There are two types of sequencing technologies: short-read sequencing and long-read sequencing. Short-read sequencing uses DNA libraries that contain small insert DNA fragments of similar sizes, usually several hundred base pairs. The sequencing efficiency can be improved if the DNA size selection is in the right range. Cat.# 20104S and 20104L are the best kits for NGS library size selection of illumina paired-end 100 (PE100) sequencing with 100-200 bp library inserts; Cat.# 20105S and 20105L are the best kits for NGS library size selection of illumina paired-end 150 (PE150) sequencing with 150-300 bp library inserts; and Cat.# 20106S and 20106L are the best kits for NGS library size selection of illumina paired-end 300 (PE300) sequencing with 300-600 bp library inserts.
Long-read sequencing uses a large DNA fragment as input and makes very long reads. Usually, library size selection is preferred to remove smaller fragments. Cat.# 20110S and 20110L are the best kits for long-read sequencing size selection with DNA sizes >5 kb, and Cat.# 20111S and 20111L are the best kits for long-read sequencing size selection with DNA sizes >10 kb.
The magnetic beads technology uses paramagnetic particles, also known as SPRI (Solid Phase Reversible Immobilization) beads, to bind DNA reversibly and selectively. DNA fragments can be size-selected and purified by changing the properties of the magnetic beads or SPRI beads. The magnetic beads can easily separate the beads-binding DNA from the contaminants and unwanted components in the samples. The samples after DNA size selection are free of contaminants such as buffer components, enzymes, proteins, salts, dNTPs, primers, and adapters. Our proprietary magnetic beads reagents improve yield, selectivity, and reproducibility.
Specific DNA fragments at a certain length range can be purified simply using magnetic separation with different beads components, avoiding tedious and time-consuming gel extraction and column-based purification. The magnetic beads method is popular for common DNA size selection, including library size selection. The first beads-binding step, referred to as the right-side clean-up, removes large DNA fragments. The large DNA fragments are bound to the beads and are discarded. The desired DNA fragments in the supernatant are transferred to a new well, and new beads are added to the supernatant for the second beads-binding, referred to as the left-side clean-up. The double-size selected DNA fragments are eluted after ethanol rinsing.
DNA size selection with dual clean-ups.
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A single clean-up is needed for DNA size selection with large fragments. In this case, only the large DNA fragments are bound to the beads. The selected larger DNA fragments are eluted after ethanol rinsing.
DNA size selection with single clean-up for >5 kb and >10 kb DNA.
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Features of DNA size selection and library size selection
High specificity and high recovery of size selection
11 selection ranges are available, including 5 ranges for NGS library size selection
50-100 bp
100-200 bp
200-500 bp
250-350 bp: ideal for illumina PE100 sequencing
300-450 bp: ideal for illumina PE150 sequencing
450-750 bp: ideal for illumina PE300 sequencing
500-1000 bp
1-3 kb
1-5 kb
>5 kb: ideal for long-read sequencing
>10 kb: ideal for long-read sequencing
Fast and simple
20-min protocol
No gel purification required
No columns required
No centrifugation required
Efficient removal of contaminants and unwanted components
Human Papillomavirus (HPV) 6/16 TaqMan PCR Detection Kits
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Overview
Detection kits for the HPV 6/16
Available in TaqMan format for analysis
More than 70 types of human papillomavirus (HPV) have been identified, and are generally classified as high-risk or low-risk depending on their relationship or lack of relationship with cancer and high-grade cervical intraepithelial neoplasia (CIN 2-3). HPV viruses are predominantly sexually transmitted and high-risk HPV types are a major risk factor for development of cervical cancer. HPV 16 has been considered as a high-risk cancer associated HPV type. The low-risk HPV type 6 has been associated with the presence of genital warts. There are many other low-risk HPV types that are not associated with genital warts or cervical cancer. Until now, HPV cannot be cultured in vitro, and immunological tests are inadequate to determine the presence of HPV cervical infection. On the other hand, biopsies can be analyzed by nucleic acid hybridization to directly detect the presence of HPV DNA.
HPV 6/16 TaqMan PCR Kit, 100 reactions
Ready to use format, including Master Mix for the target and PCR control to monitor for PCR inhibition and validate the quality
Specific Primer and Probe mix for the pathogen/virus/viroid of interest
Primer and Probe mix
Positive and negative control to confirm the integrity of the kit reagents
HPV 6/16 TaqMan PCR Probe/Primer Set and Controls, 100 reactions
Specific Primer/Probe mix and Positive Control for the pathogen/virus/viroid of interest
Nuclease-free water
Can be used together with Norgen’s PCR Master Mix (#28007) or customer supplied master mix
For research use only and NOT intended for in vitro diagnostics.
Storage Conditions and Product Stability All kit components can be stored for 2 years after the date of production without showing any reduction in performance.
All kit components should be stored at -20°C upon arrival. Repeated thawing and freezing (> 2 x) of the Master Mix and Positive Control should be avoided, as this may affect the performance of the assay. If the reagents are to be used only intermittently, they should be frozen in aliquots.
Component
TaqMan Probe Cat. TM42050 (100 preps)
TaqMan Probe/Primer and Control Set Cat. TM42010 (100 preps)
