Norgen’s Nuclease-Free Water is free of all DNases, RNases and nucleic acids and is suitable for all molecular biology applications requiring nuclease-free water including PCR, RT-PCR and real-time PCR. Our water is prepared without the use of DEPC, and is ready to use without further treatment.
Applications For use in any molecular biology application
Storage Conditions Norgen’s Nuclease-Free Water should be stored at room temperature. Storage at +4°C or -20°C is optional.
Precautions and Disclaimers This product is designed for research purposes only. It is not intended for human or diagnostic use.
Other Products
ProteoSpin™ Total Protein Concentration, Detergent Clean-Up and Endotoxin Removal Kits
Product Info
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Product Info
Overview
Columns bind proteins of interest while endotoxins flow through
Reduce endotoxin levels to less than 0.01 EU/µg of protein
Proteins are desalted
Greater than 95% protein recovery
Concentrate protein samples and remove detergents at the same time
Effectively remove a wide range of detergents including SDS, Triton® X-100, CHAPS, NP-40, and Tween 20
Purification is based on spin column chromatography that uses Norgen’s resin separation matrix
The ProteoSpin™ Total Protein Concentration, Detergent Clean-Up and Endotoxin Removal Kits are designed for the rapid removal of endotoxins from previously purified proteins or peptides, with protein recoveries of > 95% being achieved. Endotoxins, also known as lipopolysaccharides, are cell-membrane components of Gram-negative bacteria such as E. coli. Endotoxins liberated by Gram-negative bacteria are frequent contaminations of protein solutions derived from bioprocesses. Due to the high toxicity of endotoxins in vivo and in vitro, their removal from protein preparations is often necessary prior to the use of the protein in downstream applications. These kits efficiently reduce endotoxin levels to ≤ 0.01 EU/mg of protein, using spin column chromatography based on Norgen’s proprietary resin as the separation matrix. These kits are highly efficient in removing many different salts commonly used in the laboratory including, but not limited to, MgCl2, NaCl, KCl, CaCl2, LiCl and CsCl. The purified protein samples can be used in a number of downstream applications including sequencing, cloning, and in vitro and in vivo introduction into cells and organisms for various purposes. The simultaneous removal of salts while concentrating a dilute protein solution makes the kit a convenient method for preparing proteins before running many downstream applications such as SDS-PAGE, isoelectric focusing, X-ray crystallography, NMR spectroscopy, mass spectroscopy and other applications.
Mini Kit
The ProteoSpin™ Total Protein Concentration, Detergent Clean-Up and Endotoxin Removal Mini Kit is designed for the rapid removal of endotoxins from up to 200 μg of previously purified proteins or peptides, with protein recoveries of > 95% being achieved.
Maxi Kit
The ProteoSpin™ Total Protein Concentration, Detergent Clean-Up and Endotoxin Removal Maxi Kit is designed for the rapid removal of endotoxins from up to 4 mg of previously purified proteins or peptides, with protein recoveries of > 95% being achieved.
Including Triton® X-100, CHAPS, NP-40 and Tween 20
Minimum Elution Volume
50 μL
Time to Complete 10 Purifications
20 minutes
Storage Conditions All solutions should be kept tightly sealed and stored at room temperature. This kit is stable for 2 years from the date of shipment.
Component
Cat. 22800 (25 preps)
Cat. 22200 (4 preps)
Binding Buffer J
8 mL
8 mL
Binding Buffer N
4 mL
20 mL
Wash Solution M
50 mL
130 mL
Wash Solution CIP
20 mL
60 mL
Wash Solution N
30 mL
130 mL
Wash Solution NIP
20 mL
60 mL
Elution Buffer G
6 mL
20 mL
Endotoxin Removal Solution
1.5 mL
1.5 mL
Protein Neutralizer EF
2 mL
2 mL
Maxi Spin Columns (assembled with Collection Tubes)
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4
Mini Spin Columns
25
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Collection Tubes
25
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Maxi Spin Columns (assembled with Collection Tubes)
AchE Inhibitor Screening Kit (Colorimetric) provides a rapid, simple, sensitive, and reliable test suitable for high-throughput screening of AchE inhibitors.
ACETYLCHOLINESTERASE (EC 3.1.1.7, AChE), also known as RBC cholinesterase, is found primarily in the blood and neural synapses. AChE catalyzes the hydrolysis of the neurotransmitter acetylcholine into choline and acetic acid, a reaction necessary to allow a cholinergic neuron to return to its resting state after activation. Inhibition of the enzyme leads to acetylcholine accumulation, hyperstimulation of nicotinic and muscarinic receptors, and disrupted neurotransmission. AChE inhibition is an important target for the management of Alzheimer’s disease. In addition to Alzheimer’s disease, AChE inhibitors have been useful in the diagnosis or treatment of diseases such as glaucoma, myasthenia gravis, bladder distention, and more.
The Attogene Acetylcholinesterase Inhibitor Assay is based on an improved Ellman method, in which thiocholine produced by the action of acetylcholinesterase forms a yellow color with 5,5′-dithiobis(2-nitrobenzoic acid). The intensity of the product color, measured at 412nm, is proportionate to the enzyme activity in the sample.
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The Acetylcholinesterase Assay Kit provides a convenient method for the detecting AChE activity and screening for inhibitors.
The kit uses DTNB to quantify the thiolcholine produced from the hydrolysis of acetylthiolcholine by AChE.