QAPRTase Activators
The activation of Quinolinic Acid Phosphoribosyltransferase (QAPRTase or QPRT) can be influenced based on its role in the kynurenine pathway and the regulation of nicotinamide adenine dinucleotide (NAD+) metabolism. QPRT plays a crucial role in converting quinolinic acid (QA) to nicotinic acid mononucleotide (NAMN), a precursor in the NAD+ biosynthesis pathway. Thus, chemicals affecting the availability of substrates, cofactors, or enzymes upstream or downstream of QPRT in the kynurenine and NAD+ pathways can indirectly influence QPRT activity.
One approach involves the modulation of substrate availability. Quinolinic acid (QA), the direct substrate for QPRT, can be provided exogenously, potentially enhancing QPRT activity by supplying an increased substrate pool. Additionally, NAD+ (nicotinamide adenine dinucleotide), a critical cofactor for QPRT, plays a pivotal role in various cellular reactions. Chemicals that support NAD+ production or availability may indirectly influence QPRT function by ensuring an adequate supply of this cofactor. Conversely, inhibiting upstream enzymes, such as kynurenine monooxygenase (KMO), in the kynurenine pathway can also impact QPRT activity. By blocking the conversion of kynurenine to 3-hydroxykynurenine, inhibitors like Ro 61-8048 can indirectly affect QPRT by altering substrate availability. These indirect methods provide potential avenues for modulating QPRT activity by targeting the cellular processes and components that interact with this enzyme in the context of NAD+ biosynthesis and the kynurenine pathway.
SEE ALSO...
| Product Name | CAS # | Catalog # | QUANTITY | Price | Citations | RATING |
|---|---|---|---|---|---|---|
Quinolinic acid | 89-00-9 | sc-203226 | 1 g | $32.00 | 7 | |
Quinolinic acid is a direct substrate for QPRT, potentially enhancing its activity by providing increased substrate. | ||||||
Nicotinic Acid | 59-67-6 | sc-205768 sc-205768A | 250 g 500 g | $62.00 $124.00 | 1 | |
Niacin, also known as vitamin B3, is a precursor of NAD+ synthesis, indirectly influencing QPRT activity by supporting NAD+ production. | ||||||
NAD+, Free Acid | 53-84-9 | sc-208084B sc-208084 sc-208084A sc-208084C sc-208084D sc-208084E sc-208084F | 1 g 5 g 10 g 25 g 100 g 1 kg 5 kg | $57.00 $191.00 $302.00 $450.00 $1800.00 $3570.00 $10710.00 | 4 | |
NAD+ serves as a crucial cofactor in various cellular reactions, including those involving QPRT, potentially supporting QPRT function by providing an adequate supply of the cofactor. | ||||||
N-Acetyl-L-cysteine | 616-91-1 | sc-202232 sc-202232A sc-202232C sc-202232B | 5 g 25 g 1 kg 100 g | $34.00 $74.00 $270.00 $114.00 | 34 | |
N-Acetyl-L-cysteine (NAC) is an antioxidant that can modulate the cellular redox environment, potentially influencing QPRT activity by reducing oxidative stress. | ||||||
Dexamethasone | 50-02-2 | sc-29059 sc-29059B sc-29059A | 100 mg 1 g 5 g | $91.00 $139.00 $374.00 | 36 | |
Dexamethasone is a synthetic corticosteroid with anti-inflammatory properties, potentially affecting QPRT activity by suppressing inflammation that can influence the kynurenine pathway. | ||||||
Metformin | 657-24-9 | sc-507370 | 10 mg | $79.00 | 2 | |
Metformin, an agent in research for diabetes, regulates glucose metabolism. Cellular energy metabolism can influence NAD+ levels and, consequently, QPRT activity, indirectly affecting QPRT function. | ||||||
Cycloheximide | 66-81-9 | sc-3508B sc-3508 sc-3508A | 100 mg 1 g 5 g | $41.00 $84.00 $275.00 | 127 | |
Cycloheximide is an inhibitor of protein synthesis, potentially modulating QPRT activity by altering the expression of enzymes in the kynurenine pathway. | ||||||
Resveratrol | 501-36-0 | sc-200808 sc-200808A sc-200808B | 100 mg 500 mg 5 g | $80.00 $220.00 $460.00 | 64 | |
Resveratrol, a polyphenol found in grapes and red wine, has been associated with mitochondrial regulation. Mitochondrial function can influence NAD+ levels and, potentially, QPRT function indirectly. | ||||||