DBCO-PEG24-TFP ester is a heterobifunctional PEG linker with an azide-reactive DBCO and an amine-reactive TFP ester that is less susceptible to hydrolysis than an NHS ester. The PEG linker improves the water solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG24-TFP ester is a heterobifunctional PEG linker with an azide-reactive DBCO and an amine-reactive TFP ester that is less susceptible to hydrolysis than an NHS ester. The PEG linker improves the water solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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Library size selection is an enrichment of a specific range of library sizes for NGS library preparations. 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, or SPRI (Solid Phase Reversible Immobilization) beads, is well used for the purification of DNA due to their reversible DNA binding. The NGS library can be size-selected by the magnetic beads or SPRI beads. The properties of the magnetic beads can be changed for a specific range of DNA binding. The contaminants and other unwanted components in the libraries can also be removed during size selection.
Specific ranges of NGS libraries can be selected using magnetic beads with different buffer compositions. The first DNA-beads binding step, also called the right-side clean-up, removes large NGS library fragments. The large NGS library fragments that bind to the beads are discarded with the beads pellet. The desired NGS library fragments in the supernatant are transferred to a new well, and new beads are added to the supernatant for the second beads-DNA binding, also called the left-side clean-up. After the rinsing step, the NGS library fragments with the dual selection are eluted in water or an appropriate buffer. The magnetic beads method has great advantages over time-consuming column purification and tedious gel-based purification.
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Library size selection for long-read sequencing only requires a single clean-up. In this case, only the large library fragments are bound to the beads, while other small library fragments are discarded with the supernatant. The selected larger library fragments are eluted in water or an appropriate buffer after the rinsing step.
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Norgen’s Legionella sp. TaqMan PCR Kit is designed for the detection of Legionella sp. specific DNA in a real-time PCR based on the use of TaqMan technology. This kit is designed for research use only and not for use in diagnostic procedures. The detection of Legionella sp. specific DNA is based on TaqMan PCR providing a simple, reliable and rapid result for the detection of Legionella sp. infection. Norgen’s Legionella sp. TaqMan PCR Kit includes a PCR control to monitor for PCR inhibition, and to validate the quality of the sample and the detection result. The Legionella sp. TaqMan PCR Kit comprises Master Mix for the target and PCR control detection, Primer & Probe Mix, as well as a positive control and a negative control (nuclease-free water) to confirm the integrity of the kit reagents.
Legionella sp. TaqMan PCR Kit, 100 reactions
Legionella sp. TaqMan PCR Probe/Primer Set and Controls, 100 reactions
For research use only and NOT intended for in vitro diagnostics.
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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 | Cat. TM64450 (100 rxns) | Cat. TM64410 (100 rxns) |
|---|---|---|
| MDx TaqMan 2X PCR Master Mix | 2 x 700 mμL | – |
| Legionella sp. Primer & Probe Mix | 280 μL | 3 x 70 μL |
| Legionella sp. Positive Control | 150 μL | 3 x 50 μL |
| Nuclease-Free Water (Negative Control) | 1.25 mL | 1.25 mL |
| Product Insert | 1 | 1 |
Place of Origin: Guangdong, China
Warranty: 2 years
Customized support: OEM
Brand Name: HKM
Model Number: CRM008
Reagent grade: Biochemical Reagent
Form: Powder
Color: Light yellow
Type: Vibro Agar
1000mL
