SIRT5 (human, recombinant)
SIRT5 (human, recombinant)
Sirtuin 5 (SIRT5) is an enzyme that catalyzes the NAD-dependent removal of malonyl, succinyl, and glutaryl groups from target proteins.{55107,55108}...
€724.00
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€383.00 €325.55
€383.00 €325.55
NADPH is an essential cofactor for the function of the NOS enzyme. Unfortunately, NADPH interferes with the chemistry of the Griess reagents, which are the most commonly used reagents for nitrite detection. There are two ways to get around this limitation. Vanishingly small amounts of NADPH can be used, in conjunction with a catalytic system for recycling the spent NADP+ back to NADPH. This is the system used in Cayman’s first Nitrate/Nitrite Colorimetric Assay Kit (Item No. 780001). It works well for the analysis of fluids such as plasma and urine, and is also available in a high sensitivity fluorometric version (Item No. 780051) for the detection of low levels of nitrate and nitrite. However, this method cannot be used to analyze nitrate and nitrite from an in vitro NOS assay in which excess NADPH has been added. The second way to handle the NADPH interference problem is to go ahead and use an excess of NADPH. An additional step is added to the protocol to remove the excess NADPH. This is the avenue we have taken in the development of this nitrate/nitrite assay kit. This kit uses Lactate Dehydrogenase (LDH) to oxidize the excess NADPH. The kit is particularly well suited to measurements of NOS activity in vitro. High throughput screening applications using recombinant nitric oxide synthase (NOS) preparations can be quickly and accurately assayed with the LDH method kit. Each kit contains assay buffer, nitrate reductase, cofactors preparation, nitrate standard, lactate dehydrogenase, Griess Reagent R1, Griess Reagent R2, a 96 well plate, and complete instructions.
Territorial Availability: Available through Bertin Technologies only in France
| Size | 96 wells |
|---|---|
| Shipping | dry ice |
| Molecular weight | 0 |
| Custom code | 3822.19 |
| UNSPSC code | 41116104 |
Cayman Chemical’s mission is to help make research possible by supplying scientists worldwide with the basic research tools necessary for advancing human and animal health. Our utmost commitment to healthcare researchers is to offer the highest quality products with an affordable pricing policy.
Our scientists are experts in the synthesis, purification, and characterization of biochemicals ranging from small drug-like heterocycles to complex biolipids, fatty acids, and many others. We are also highly skilled in all aspects of assay and antibody development, protein expression, crystallization, and structure determination.
Over the past thirty years, Cayman developed a deep knowledge base in lipid biochemistry, including research involving the arachidonic acid cascade, inositol phosphates, and cannabinoids. This knowledge enabled the production of reagents of exceptional quality for cancer, oxidative injury, epigenetics, neuroscience, inflammation, metabolism, and many additional lines of research.
Our organic and analytical chemists specialize in the rapid development of manufacturing processes and analytical methods to carry out clinical and commercial GMP-API production. Pre-clinical drug discovery efforts are currently underway in the areas of bone restoration and repair, muscular dystrophy, oncology, and inflammation. A separate group of Ph.D.-level scientists are dedicated to offering Hit-to-Lead Discovery and Profiling Services for epigenetic targets. Our knowledgeable chemists can be contracted to perform complete sample analysis for analytes measured by the majority of our assays. We also offer a wide range of analytical services using LC-MS/MS, HPLC, GC, and many other techniques.
Accreditations
ISO/IEC 17025:2005
ISO Guide 34:2009
Cayman is a leader in the field of emerging drugs of abuse, providing high-purity Schedule I-V Controlled Substances to federally-licensed laboratories and qualified academic research institutions for forensic analyses. We are certified by ACLASS Accreditation Services with dual accreditation to ISO/IEC 17025:2005 and ISO Guide 34:2009.
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