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QDPR recombinant protein

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Catalog # MBS844809
Unit / Price
  0.1 mg  /  $365 +1 FREE 8GB USB
Testing Data
Product Name

QDPR, Recombinant Protein

Full Product Name

QDPR, human recombinant

Product Synonym Names
Quinoid dihydropteridine reductase; DHPR; FLJ42391; PKU2; SDR33C1
Research Use Only
For Research Use Only. Not for use in diagnostic procedures.
Sequence
MGSSHHHHHH SSGLVPRGSH MGSMAAAAAA GEARRVLVYG GRGALGSRCV QAFRARNWWV ASVDVVENEE ASASIIVKMT DSFTEQADQV TAEVGKLLGE EKVDAILCVA GGWAGGNAKS KSLFKNCDLM WKQSIWTSTI SSHLATKHLK EGGLLTLAGA KAALDGTPGM IGYGMAKGAV HQLCQSLAGK NSGMPPGAAA IAVLPVTLDT PMNRKSMPEA DFSSWTPLEF LVETFHDWIT GKNRPSSGSL IQVVTTEGRT ELTPAYF
OMIM
261630
3D Structure
ModBase 3D Structure for P09417
Host
E Coli
Purity/Purification
>=90%
Form/Format
1 mg/ml solution in 20 mM Tris-HCl buffer (pH 8.0) containing 10% glycerol and 2 mM DTT
Appearance: Liquid
Concentration
1 mg/ml (lot specific)
Biological Activity
Specific activity: > 27 units/ml One unit will oxidize 1.0 umole of b-NADH to b-NAD with 6,7-Dimethyldihydropterine (quinonoid isomer) as the non-nucleotide substrate per minute at pH 7.2 at 25 degree C
Results
Specific activity: > 27 units/ml
Unit Definition
One unit will oxidize 1.0 umole of b-NADH to b-NAD with 6,7-Dimethyldihydropterine (quinonoid isomer) as the non-nucleotide substrate per minute at pH 7.2 at 25 degree C
Handling
Centrifuge the vial prior to opening.
Preparation and Storage
At -20 degree C
Shelf Life: 12 months
Other Notes
Small volumes of QDPR 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.
Related Product Information for
QDPR recombinant protein
Background: QDPR is a member of the short-chain dehydrogenases/reductase (SDR) family of enzymes. Functioning as a homodimer, QDPR plays an important role in the recycling of tetrahydrobiopterin (BH4), an essential cofactor for the hydroxylation of the aromatic amino acids (tryptophan, tyrosine and phenylalanine). More specifically, QDPR catalyzes the regeneration of BH4 from quinonoid dihydrobiopterin (qBH2), the product generated from the hydroxylation reactions. Mutations in the gene encoding QDPR can lead to phenylketonuria II. Recombinant human QDPR protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.
Applications Tested/Suitable for QDPR recombinant protein
SDS-PAGE

Testing Data of QDPR recombinant protein
QDPR recombinant protein Testing Data image
NCBI/Uniprot data below describe general gene information for QDPR. It may not necessarily be applicable to this product.
NCBI GI #
NCBI GeneID
NCBI Accession #
NCBI GenBank Nucleotide #
UniProt Primary Accession #
UniProt Secondary Accession #
UniProt Related Accession #
Molecular Weight
28.2 kDa (267 aa, 1-244 aa + His Tag)
NCBI Official Full Name
dihydropteridine reductase isoform 1
NCBI Official Synonym Full Names
quinoid dihydropteridine reductase
NCBI Official Symbol
NCBI Official Synonym Symbols
DHPR; PKU2; SDR33C1
  [Similar Products]
NCBI Protein Information
dihydropteridine reductase
UniProt Protein Name
Dihydropteridine reductase
UniProt Synonym Protein Names
HDHPR; Quinoid dihydropteridine reductase; Short chain dehydrogenase/reductase family 33C member 1
UniProt Gene Name
UniProt Synonym Gene Names
DHPR; SDR33C1  [Similar Products]
UniProt Entry Name
DHPR_HUMAN
NCBI Summary for QDPR
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]
UniProt Comments for QDPR
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: Oxidoreductase; EC 1.5.1.34; Cofactor and Vitamin Metabolism - folate biosynthesis

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; tetrahydrobiopterin biosynthetic process; L-phenylalanine catabolic process; response to glucagon stimulus; dihydrobiopterin metabolic process; response to lead ion; liver development; response to aluminum ion

Disease: Hyperphenylalaninemia, Bh4-deficient, C
Precautions
All of MyBioSource's Products are for scientific laboratory research purposes and are not for diagnostic, therapeutics, prophylactic or in vivo use. Through your purchase, you expressly represent and warrant to MyBioSource that you will properly test and use any Products purchased from MyBioSource in accordance with industry standards. MyBioSource and its authorized distributors reserve the right to refuse to process any order where we reasonably believe that the intended use will fall outside of our acceptable guidelines.
Disclaimer
While every efforts were made to ensure the accuracy of the information provided in this datasheet, MyBioSource will not be liable for any omissions or errors contained herein. MyBioSource reserves the right to make changes to this datasheet at any time without prior notice.

It is the responsibility of the customer to report product performance issues to MyBioSource within 30 days of receipt of the product. Please visit our Terms & Conditions page for more information.
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