Recombinant Human QPRTase (N-6His)

Product Specifications

Background

Nicotinate-Nucleotide Pyrophosphorylase (QPRT) belongs to the nadC/modD family. QPRT plays an improtant role in catabolism of quinolinate which acts as a potent endogenous exitotoxin to neurons. In addition, QPRT serves as an an intermediate in the Tryptophan-Nicotinamide Adenine Dinucleotide pathway. QPRT participates in some pathways including Cofactor biosynthesis, NAD (+) biosynthesis and the Nicotinate D-Ribonucleotide from Quinolinate. In addition, QPRT is involved in the catabolism of Quinolinic Acid (QA) . The activity toward QA is slightly repressed by phosphoribosylpyrophosphate (PRPP) in both a competitive and a non-competitive manner.

Product Name Alternative

Nicotinate-Nucleotide Pyrophosphorylase [Carboxylating]; Quinolinate Phosphoribosyltransferase [Decarboxylating]; QAPRTase; QPRTase; QPRT

Accession Number

AAH05060.1

Host

E.coli

Endotoxin

<1 EU/µg as determined by LAL test.

Purity

Greater than 95% as determined by reducing SDS-PAGE

Form

Liquid

Molecular Weight

33 KDa

Shipping Conditions

The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below.

Storage Conditions

Store at -70°C/-20°C, stable for 6 months after receipt.Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles.

Formulation

Supplied as a 0.2 μm filtered solution of 20mM Tris-HCl, 150mM NaCl, pH 8.0.

Construct

Recombinant Human Quinolinate Phosphoribosyltransferase [Decarboxylating] is produced by our E.coli expression system and the target gene encoding Met1-His297 is expressed with a 6His tag at the N-terminus.