NFNB E.Coli; Dihydropteridine Reductase E.Coli Recombinant; DPRA; NFSB; NFSI; NTR

For Research Use Only. Not for use in diagnostic procedures.

E Coli

Greater than 95.0% as determined by SDS-PAGE.

1mg/ml solution containing 20mM Tris pH-8, 1mM DTT, 0.05M NaCl & 10% glycerol.
Sterile filtered colorless solution.

NFNB Human although stable at 4C for 1 week, should be stored desiccated below -18C. Please prevent freeze thaw cycles.

Small volumes of NFNB recombinant protein vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

Description: NFNB Recombinant produced in E Coli is a single, non-glycosylated polypeptide chain containing 237 amino acids (1-217 a.a.) and having a molecular mass of 26 kDa. The NFNB is fused to 20 amino acid His-Tag at N-terminus and purified by proprietary chromatographic techniques.

Introduction: NFNB demonstrates the capability to reduce quinines. NFNB enzyme activates prodrugs in antibody directed enzyme prodrug therapy. NFNB reduces nitrofurazone, quinones and anti-tumor agent CB1954 (5-(aziridin-1-yl)-2,4-dinitrobenzamide). The reduction of CB1954 results in the generation of cytotoxic species.

ENZYMES; Enzymes; Reductase

22,408 Da

quinoid dihydropteridine reductase

dihydropteridine reductase; 6,7-dihydropteridine reductase; HDHPR; short chain dehydrogenase/reductase family 33C, member 1

Dihydropteridine reductase

DHPR??[Similar Products]

DHPR_HUMAN

This gene encodes the enzyme dihydropteridine reductase, which catalyzes the NADH-mediated reduction of quinonoid dihydrobiopterin. This enzyme is an essential component of the pterin-dependent aromatic amino acid hydroxylating systems. Mutations in this gene resulting in QDPR deficiency include aberrant splicing, amino acid substitutions, insertions, or premature terminations. Dihydropteridine reductase deficiency presents as atypical phenylketonuria due to insufficient production of biopterin, a cofactor for phenylalanine hydroxylase. [provided by RefSeq, Jul 2008]

QDPR: The product of this enzyme, tetrahydrobiopterin (BH-4), is an essential cofactor for phenylalanine, tyrosine, and tryptophan hydroxylases. Defects in QDPR are the cause of BH4-deficient hyperphenylalaninemia type C (HPABH4C); also called dihydropteridine reductase deficiency (DHPR deficiency) or hyperphenylalaninemia tetrahydrobiopterin-deficient due to DHPR deficiency or quinoid dihydropteridine reductase deficiency (QDPR deficiency). HPABH4C is a rare autosomal recessive disorder characterized by hyperphenylalaninemia and severe neurologic symptoms (malignant hyperphenylalaninemia) including axial hypotonia and truncal hypertonia, abnormal thermogenesis, and microcephaly. These signs are attributable to depletion of the neurotransmitters dopamine and serotonin, whose syntheses are controlled by tryptophan and tyrosine hydroxylases that use BH-4 as cofactor. These patients do not respond to phenylalanine- restricted diet. HPABH4C is lethal if untreated. Belongs to the short-chain dehydrogenases/reductases (SDR) family.

Protein type: EC 1.5.1.34; Cofactor and Vitamin Metabolism - folate biosynthesis; Oxidoreductase

Chromosomal Location of Human Ortholog: 4p15.31

Cellular Component: neuron projection; mitochondrion; cytoplasm; cytosol

Molecular Function: protein homodimerization activity; electron carrier activity; 6,7-dihydropteridine reductase activity

Biological Process: amino acid metabolic process; L-phenylalanine catabolic process; tetrahydrobiopterin biosynthetic process; response to glucagon stimulus; dihydrobiopterin metabolic process; response to lead ion; liver development; response to aluminum ion

Disease: Hyperphenylalaninemia, Bh4-deficient, C

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