Mal-amido-PEG4-alkyne is a short PEG linker featuring a maleimide and a terminal alkyne. Maleimide is a covalent ligand used for linking thiols such as those in cysteines residues in proteins, while terminal alkynes can be used in copper (I) click chemistry with azides on target molecules.
Mal-amido-PEG4-alkyne is a short PEG linker featuring a maleimide and a terminal alkyne. Maleimide is a covalent ligand used for linking thiols such as those in cysteines residues in proteins, while terminal alkynes can be used in copper (I) click chemistry with azides on target molecules.
Norgen’s Total RNA Purification Maxi Kit provides a rapid method for the isolation and purification of total RNA from cultured animal cells, tissue samples, blood, bacteria, yeast, fungi, plants, and viruses. The kit purifies all sizes of RNA, from large mRNA and ribosomal RNA down to microRNA (miRNA) and small interfering RNA (siRNA). The RNA is preferentially purified from other cellular components such as proteins, without the use of phenol or chloroform. The purified RNA is of the highest integrity, and 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.
Norgen’s Purification Technology
Purification is based on spin column chromatography using Norgen’s proprietary resin as the separation matrix. The RNA is preferentially purified from other cellular components such as proteins without the use of phenol or chloroform. The process involves first lysing the cells or tissue of interest with the provided Buffer RL (please see the flow chart on page 4). Ethanol is then added to the lysate, and the solution is loaded onto a maxi spin column. Norgen’s resin binds RNA in a manner that depends on ionic concentrations. Thus only the RNA will bind to the column, while the contaminating proteins will be removed in the flowthrough or retained on the top of the resin. The bound RNA is then washed with the provided Wash Solution A in order to remove any remaining impurities, and the purified total RNA is eluted with the Elution Solution A. The purified RNA is of the highest integrity, and can be used in a number of downstream applications.
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| Kit Specifications | |
| Maximum Column Binding Capacity | 1.5 mg |
| Maximum Column Loading Volume | 20 mL |
| Size of RNA Purified | All sizes, including small RNA (< 200 nt) |
| Maximum Amount of Starting Material | |
| Liver Tissue | 100 mg |
| Heart Tissue | 50 mg |
| Kidney Tissue | 100 mg |
| Brain Tissue | 250 mg |
| Lung Tissue | 100 mg |
| Whole Blood | 2 – 10 mL* |
| Bacteria | 2.5 x 10 10 cells |
| Yeast | 2 x 108 cells |
| Fungi | 1 g |
| Plant Tissues | 1 g |
| Time to Complete 4 Purifications | 40 minutes |
| Average Yield: HeLa Cells (5 x 107 cells) E. coli (2.5 x 1010 cells) | ~750 μg ~1.5 mg |
*For isolating total RNA from purified leukocytes
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.
| Component | Cat. 26800 (8 preps) |
|---|---|
| Buffer RL | 2 x 40 mL |
| Wash Solution A | 4 x 38 mL |
| Elution Solution A | 3 x 20 mL |
| RNA Maxi Spin Columns (with collection tubes) | 8 |
| Elution Tubes (50 mL) | 8 |
| Product Insert | 1 |
Discover Huankai’s Lysine Iron Agar, designed for the differentiation and identification of enteric bacteria, particularly Salmonella, through lysine decarboxylation and hydrogen sulfide production.
Discover Huankai’s Lysine Iron Agar, designed for the differentiation and identification of enteric bacteria, particularly Salmonella, through lysine decarboxylation and hydrogen sulfide prod……
Norgen’s microScript microRNA cDNA Synthesis Kit is an all-in-one, ready-to-use product for the reverse transcription of microRNA from either Total RNA preparations or enriched microRNA preparations. The kit contains the 2x Reaction Mix and the microScript microRNA Enzyme Mix. The kit utilizes Norgen’s microScript Reverse Transcriptase, a mutant version of Moloney Murine Leukemia Virus (M-MuLV) Reverse Transcriptase. It has reduced RNase H activity and increased thermal stability.
The workflow of Norgen’s microScript microRNA cDNA Synthesis Kit involves a simple, single-tube set-up by the mixing of 2x Reaction Mix, Enzyme Mix and the RNA template. The reaction can then be carried out in a thermocycler. A poly (A) tail is first added to the RNA template, followed by cDNA synthesis using an adapter primer. In addition to the ease-of-use, the single-tube set-up provides superb consistency and sensitivity. The cDNA could be used in a PCR or qPCR amplification using a Universal PCR Reverse Primer and the forward primer that contains the sequence of the microRNA of interest. A single cDNA preparation could be used for PCR amplification of a number of different microRNAs. In addition, the cDNA preparation could be used for PCR or qPCR detection (using gene-specific forward and reverse primers) of mRNA or large RNA if total RNA preparation was the starting template. This could allow for parallel evaluation of expression level of microRNAs and microRNA-targets.
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Storage Conditions and Product Stability
This kit is stable for 1 year after the date of shipment .
| Component | Cat. 54415 (12 rxns) | Cat. 54410 (50 rxns) |
|---|---|---|
| microScript microRNA Enzyme Mix | 12 μL | 50 μL |
| 2x Reaction Mix | 120 μL | 500 μL |
| Universal PCR Reverse Primer | 60 μL | 250 μL |
| Nuclease-Free Water | 1.25 mL | 2 x 1.25 mL |
| Product Insert | 1 | 1 |
