The Genomic DNA Extraction Kit (HMW, Magnetic Beads) provides a reliable and fast process for extracting high molecular weight (HMW) genomic DNA from cells, blood, and tissues using Solid Phase Reversible Immobilization (SPRI) magnetic beads. With our proprietary magnetic beads technology, the kit eliminates the tedious centrifuge steps for columns. The kit provides a reliable and simple approach for high-quality genomic DNA isolation with fast magnetic response time and high binding capacity.
Cat.# 50014 Genomic DNA Extraction Kit for Cells (HMW, Magnetic Beads)
Cat.# 50015 Genomic DNA Extraction Kit for Blood (HMW, Magnetic Beads)
Cat.# 50016 Genomic DNA Extraction Kit for Tissues (HMW, Magnetic Beads)
The extracted HMW genomic DNA size ranges are dependent on the beads resuspension: 50-150 kb by tube tapping and 40-100 kb by tube vortexing. Purified DNA is recovered at high yield and high purity without RNA contamination. The typical purity ratios of A260/A280 are around 1.8-2.0, and A260/A230 are around 2.2-2.5. Purified HMW genomic DNA is suitable for applications such as long-read sequencing, linked-read genome assembly, long range PCR, optical mapping, and other general applications.
Features
A portion of the extracted genomic DNA samples were loaded on a PFGE gel with a DNA ladder indicated. Sample A: liver tissue; Sample B: intestine tissue; Sample C: whole blood; Sample D: cultured 293T cells.
Cultured Cell samples
Cultured cells are collected and are resuspended in a buffer and then lysed with a lysis buffer, then mixed with beads to bind genomic DNA. The samples are mixed with a buffer and after washing steps, genomic DNA is eluted in the Elution Buffer. The isolated genomic DNA with the magnetic beads is free of contamination such as RNA, proteins, salts, and other impurities.
Blood samples
Whole blood is resuspended in the RBC buffer to remove RBC. The remaining leucocytes are lysed with a lysis buffer, then mixed with beads to bind genomic DNA. The samples are mixed with a buffer and after washing steps, genomic DNA is eluted in Elution Buffer. The isolated genomic DNA with the magnetic beads is free of contamination such as RNA, proteins, salts, and other impurities.
Tissue samples
Tissues are homogenized and lysed, then mixed with beads to bind genomic DNA. The samples are mixed with a buffer and after washing steps, genomic DNA is eluted in Elution Buffer. The isolated genomic DNA with the magnetic beads is free of contamination such as RNA, proteins, salts, and other impurities.
Mastitis is the single most costly disease of dairy cattle resulting in the reduction of milk yield and quality. The inflammation of the utter is mainly caused by bacteria, and Staphylococcus aureus (S. aureus) is often considered the most common cause of contagious mastitis in dairy herds. S. aureus infection is estimated to be present in up to 90% of dairy farms and is responsible for 35% of the economic loss in the dairy industry. S. aureus is a facultatively anaerobic, Gram positive bacterium. The majority of S. aureus strains are catalase-positive and coagulase-positive, which forms the basis of traditional identification methodology.
Staphylococcus aureus Quantified Bacterial DNA Standard is prepared from cultured bacteria using Norgen’s sample preparation technology. The purified DNA is quantified vigorously using multiple methods including spectrophotometry, gel densitometry and real-time PCR. It is intended to be used as a positive control or PCR quantification standard for Staphylococcus aureus.
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| Volume Provided | 250 µL |
| DNA Quantity | 2 x 104 copies per µL |
Storage Conditions
Upon receipt, store Norgen’s Staphylococcus aureus Quantified Bacterial DNA Standard at -20oC or lower. Avoid multiple freeze-thaw cycles. If needed, prepare smaller working aliquots and store at -20oC or lower.
These kits provide a fast, reliable and convenient method to sequentially isolate and concentrate exosomal RNA as well as Free-Circulating RNA from different plasma/serum sample volumes. The purification is based on spin column chromatography that employs Norgen’s proprietary resin. These kits are designed to isolate all sizes of RNA, including microRNA as well as all sizes of the free-circulating protein-bound RNA, including microRNA. These kits provide a clear advantage over other available kits in that they do not require any special instrumentation, protein precipitation reagents, extension tubes, phenol/chloroform or protease treatments. Moreover, these kits allow the user to elute into a flexible elution volume ranging from 50 µL to 100 µL. The RNA isolated from the purified exosomes is free from any protein-bound circulating RNA and is of the highest integrity. Moreover, the free-circulating, protein-bound, RNA is free from any exosomal RNA. The purified RNA can be used in a number of downstream applications including real time PCR, reverse transcription PCR, Northern blotting, RNase protection and primer extension, and expression array assays.
Plasma/Serum Exosome and Free-Circulating RNA Isolation Mini Kit
For sample volumes ranging from 50 µL to 1 mL.
Plasma/Serum Exosome and Free-Circulating RNA Isolation Midi Kit
For sample volumes ranging from 1 mL to 4 mL.
Plasma/Serum Exosome and Free-Circulating RNA Isolation Maxi Kit
For sample volumes ranging from 4 mL to 10 mL.
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| Kit Specifications | |
| Minimum Plasma Input | 50 μL |
| Maximum Plasma Input | 1 mL |
| Size of RNA Purified | All sizes, including miRNA and small RNA (< 200 nt) |
| Elution Volume | 50 – 100 µL |
| Time to Complete 10 Purifications | 35 – 40 minutes |
| Average Yields* | Variable depending on specimen |
*Please check page 5 of the product insert for the average yields and the common RNA quantification methods
Storage Conditions and Product Stability
All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years after the date of shipment. It is recommended to warm Lysis Buffer A for 20 minutes at 60°C if any salt precipitation is observed.
Important Note
This kit is suitable for the purification of exosomes from fresh or frozen serum or plasma prepared from blood collected on either EDTA or Citrate. Plasma samples prepared from blood collected on heparin should not be used as heparin can significantly interfere with many downstream applications such as RT-PCR.
| Component | Cat. 59500 (50 preps) | Cat. 59600 (25 preps) | Cat. 59700 (15 preps) |
|---|---|---|---|
| Slurry E | 12.5 mL | 12.5 mL | 12.5 mL |
| ExoC Buffer | 8 mL | 8 mL | 2 x 8 mL |
| ExoR Buffer | 12 mL | 12 mL | 12 mL |
| Lysis Buffer A | 2 x 20 mL | 2 x 20 mL | 2 x 20 mL |
| Lysis Additive B | 2 mL | 2 mL | 2 mL |
| Wash Solution A | 2 x 18 mL | 18 mL | 18 mL |
| Elution Solution A | 2 x 6 mL | 6 mL | 6 mL |
| Mini Filter Spin Columns | 50 | 25 | 15 |
| Mini Spin Columns | 100 | 50 | 30 |
| Collection Tubes | 100 | 50 | 30 |
| Elution Tubes (1.7 mL) | 100 | 50 | 30 |
| Product Insert | 1 | 1 | 1 |