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.
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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.
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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.
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This product is suitable for rapid extraction of RNA from low RNA yield somples such as tissue (＜10mg), cells, bone marrow, fresh blood, and other clinical samples. RNA can be used directly for RT-PCR, Real time PCR, NGS, Viral RNA detection and so on.
Specifications
| Features | Specifications |
| Main Functions | Isolation total RNA from tissue, cell, whole blood |
| Applications | RT-PCR, cDNA synthesis, second generation sequencing |
| Purification method | Polydisperse magnetic beads |
| Purification technology | Magnetic beads technology |
| Process method | Manual or automatic |
| Adaptive instrument | Nucleic acid extractor, pipetting workstation |
| Sample type | Tissues, cells, lymphocytes and other clinical sample |
| Sample amount | Cells grown in suspension: ≤3 x 106Animal tissue: ≤10mgPlant tissue: ≤30mgWhole blood: 0.5~1.0 ml fresh blood or bone marrow and fresh blood mixture |
Kit Contents
| Contents | IVD3020B-96 | IVD3020B |
| Purification Times | 96 Preps | 200 Preps |
| MagPure Particles N | 2.5 ml | 5 ml |
| DNase I | 2 x 600 µl | 4 x 600 µl |
| DNase Buffer C | 60 ml | 120 ml |
| Buffer RLC | 60 ml | 120 ml |
| Buffer MCB* | 60 ml | 150 ml |
| Buffer GW1* | 44 ml | 110 ml |
| Buffer MW2* | 50 ml | 100 ml |
| RNase Free Water | 20 ml | 60 ml |
Storage and Stability
DNase I should be shipped with ice pack and stored at -20°C after arrival. MagPure Particles N should be stored at 2–8°C for long time storage. The remaining kit components can be stored at room temperature(15–25°C) for up to18 months under these conditions.
This product is suitable for rapid extraction of RNA from low RNA yield somples such as tissue (＜10mg), cells, bone marrow, fresh blood, and other clinical samples. RNA can be used directly for RT-PCR, Real time PCR, NGS, Viral RNA detection and so on.
N-(endo-BCN-PEG2-amido-PEG3)-N-bis-(PEG3-Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is is a multi-functional PEG linker with six terminal propargyl groups and a BCN group. The propargyl groups enables formation of triazole linkage with azide-bearing compounds or biomolecules in copper catalyzed Click Chemistry. The BCN group can react with azide -tagged compound or biomolecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
N-(endo-BCN-PEG2-amido-PEG3)-N-bis-(PEG3-Amino-Tri-(Propargyl-PEG2-ethoxymethyl)-methane) is is a multi-functional PEG linker with six terminal propargyl groups and a BCN group. The propargyl groups enables formation of triazole linkage with azide-bearing compounds or biomolecules in copper catalyzed Click Chemistry. The BCN group can react with azide -tagged compound or biomolecules. The hydrophilic PEG spacer increases solubility in aqueous media. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.