DBCO-PEG6-amine is a PEG linker which contains DBCO and amine moieties. The DBCO group is commonly used in copper-free Click Chemistry reactions. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The hydrophilic PEG spacer increases the water solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
DBCO-PEG6-amine is a PEG linker which contains DBCO and amine moieties. The DBCO group is commonly used in copper-free Click Chemistry reactions. The amine group is reactive with carboxylic acids, activated NHS esters, carbonyls (ketone, aldehyde) etc. The hydrophilic PEG spacer increases the water solubility of the compound. Reagent grade, for research purpose. Please contact us for GMP-grade inquiries.
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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Sample type purification kit guide
The 16S V1-V3 Library Preparation Kit for Illumina consists of the reagents and components required for library preparation of the 16S V1-V3 amplicon libraries to be used for next-generation sequencing on Illumina platforms. All molecular reagents including primers, enzyme mixes, indexes, and buffers are provided. Instructions for PCR clean up with the AMPure XP Magnetic Beads (supplied by customer) are also included for rapid purification of nucleic acid products generated at two steps of the workflow. The library prep workflow could be used for purified DNA inputs from different sources including stool, soil, water, saliva, plant, urine, skin swab, vaginal swab, cheek swab, nasal swab, plasma/serum, tongue swab, gum swab, and others.
The 16S V1-V3 Library Preparation Kit for Illumina has a streamlined procedure that reduces the handling time such that the library prep procedure can be completed in approximately 4 hours (see diagram below). Input DNA is first subjected to targeted PCR to amplify the V1-V3 region of the DNA encoding 16S rRNA. The post-PCR reaction is then cleaned up using AMPure XP beads. Dual index primers are then added using a limited-cycle PCR. The indexed amplicons flanked by 5′ and 3′ barcoded adaptors are then cleaned using AMPure XP beads. The libraries are then ready for quantification, pooling and sequencing.
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| Minimum amount of starting material: | 2.5 µL of DNA (5 ng/µL) |
| Time to complete library preparation: | 4 hours |
Storage Conditions and Product Stability
Norgen’s 16S V1-V3 Library Prep Kit for Illumina is shipped as one kit box (for the 24 prep kit) or two sub-component kits (for the 96 prep kit). All kits should be stored at -20°C upon arrival.
All kit components should remain stable for at least 1 year when stored at the specified storage conditions.
| Step | Component | Cat. 70200 (24 preps) | Cat. 70210, 70220, 70230, 70240 (96 preps) |
|---|---|---|---|
| Amplicon PCR (PCR 1) | MGX Master Mix | 330 µL | 1,320 µL |
| 16S V1-V3 Primer Mix | 70 µL | 280 µL | |
| Index PCR (PCR 2) | Indexing Master Mix | 660 µL | 2 x 1,320 µL |
| N7xx Index Primer | 50 µL | 50 µL | |
| S5xx Index Primer | 70 µL | 70 µL | |
| PCR Clean-Up | Resuspension Buffer | 2 x 1,250 µL | 2 x 5,000 µL |
| Nuclease-free water | 1,250 µL | 1 x 6,000 µL |
Recombinant adeno-associated virus (AAV) vectors are highly promising tools for both in vitro and in vivo gene transfer. Norgen’s AAV Purification Kits provide fast and simple procedures for concentrating and purifying AAV vectors from cell lysate and cell culture media. Purification is based on precipitation onto Norgen Biotek’s proprietary resin. Contaminating cellular debris is largely removed from the sample via a centrifugation step, while contaminating DNA and RNA is reduced using enzymatic digestion. AAV vector purified in this manner is highly active for use in in vitro and in vivo transduction experiments.
AAV Purification Kit
Norgen’s AAV Purification Kit contains sufficient materials for 15 preparations (33.5 mL per prep of supernatant (SN) or a total of 500 mL of supernatant input). Approximately 1 mL of cell pellet can be purified per prep, up to a maximum of 15 mL of cell pellet in total for the entire kit. Up to 33X sample concentration.
AAV Purification Mini Kit
Each spin column is able to concentrate and purify AAV from 0.5-8 mL of cell pellet, cell culture media, or cells and culture media mixed together. Up to 50X sample concentration. AAV vector purified in this manner is highly active for use in in vitro transduction experiments, and is eluted into a small volume (200 µL). Preparation time for 4 samples is 1.5 hours, with 45 minutes of hands-on time.
AAV Purification Midi Kit
Each spin column is able to concentrate and purify AAV from 8 mL up to 45 mL of input consisting of cell pellet, cell culture media, or cells and culture media mixed together. Up to 50X sample concentration. AAV vector purified in this manner is highly active for use in in vitro transduction experiments, and is eluted into a small volume (1 mL). The kit may be used to purify up to 8 x 25 mL or 4 x 45 mL of samples using the included columns. Preparation time for 4 samples is approximately 2 to 2.5 hours, with 1.5 hours of hands on time.
AAV Purification Maxi Kit (Slurry Format)
Each spin column is able to concentrate and purify AAV from 45 mL to 90 mL of input consisting of cell pellet, cell culture media, or cells and culture media mixed together. Up to 200X sample concentration. AAV vector purified in this manner is highly active for use in in vitro transduction experiments, and is eluted into a small volume (1-10 mL) using the optional concentration step. The kit may be used to purify up to 1 x 900 mL samples or 10 x 45-90 mL samples using the included columns. Preparation time for 1 x 900 mL sample is approximately 2.5 to 3.5 hours, with an optional concentration step requiring an additional 30 min.
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| Kit Specifications | |
| Column Binding Capacity | At least 5 x 109 AAV particles as determined by qPCR |
| AAV Vector Serotype | Any |
| Average Recovery | > 80% |
| Input Type | Cells, media, or mixed |
| Input Volume | 0.5 mL – 8 mL |
| Minimum Elution Volume | 200 µL |
| Time to Complete Purifications | 1 – 2 hours |
Storage Conditions and Product Stability
DNAse I and RNAse A should be stored at -20°C upon arrival. Elution Buffer O should be stored tightly capped at 4°C upon arrival. All other solutions should be kept tightly sealed and stored at room temperature. Once opened, the solutions should be stored at 4°C. This kit is stable for 1 year after the date of shipment.
| Component | Cat. 66100 (15 preps) | Cat. 63200 (20 preps) | Cat. 63300 (4-8 preps) | Cat. 63250 (1-10 preps) |
|---|---|---|---|---|
| Lysis Buffer S | 5.5 mL | 5.5 mL | 5.5 mL | 20 mL |
| DNAse I | – | 2 x 25 uL | 2 x 25 uL | 210 μL |
| RNAse A | – | 60 μL | 60 μL | 240 μL |
| HL-SAN Nuclease | 102 μL | – | – | – |
| Binding Buffer A | 20 mL | 4 mL | 4 mL | 2 x 8 mL |
| Purification Solution C | 60 mL | – | – | – |
| Purification Solution D | 130 mL | – | – | – |
| Wash Solution C | 2 x 130 mL | 60 mL | 60 mL | 3 x 60 mL |
| Slurry E | 12.5 mL | – | – | 2 x 14.5 mL |
| Elution Buffer O | 66 mL | 8.5 mL | 8.5 mL | 66 mL |
| Protein Neutralizer | 4 mL | 4 mL | 4 mL | 4 mL |
| Spin Columns | – | 20 | – | – |
| Mini Spin Columns | – | 20 | – | – |
| Midi Spin Columns (grey contents) with Collection Tubes | – | – | 8 | 10 |
| Midi Spin Columns (white contents) with Collection Tubes | – | – | 8 | – |
| Maxi Spin Columns (grey contents) with Collection Tubes | – | – | – | 10 |
| Maxi Spin Columns (white contents) with Collection Tubes | – | – | – | 10 |
| Collection Tubes | – | 40 | – | – |
| Elution tubes (1.7 mL) | 50 | 20 | – | – |
| Midi Elution tubes (15 mL) | – | – | 8 | 10 |
| Maxi Elution tubes (50 mL) | – | – | – | 10 |
| Product Insert | 1 | 1 | 1 | 1 |
