PNP, Blocking Peptide

Purine nucleoside phosphorylase; PNP; Inosine phosphorylase; Inosine-guanosine phosphorylase; PNP; NP

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

The synthetic peptide sequence is selected from aa 145-158 of HUMAN PNP

Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.

Maintain refrigerated at 2-8 degree C for up to 6 months. For long term storage store at -20 degree C.

Small volumes of PNP blocking peptide 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.

The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta- (deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate.

32,118 Da

purine nucleoside phosphorylase

purine nucleoside phosphorylase

Purine nucleoside phosphorylase

NP; PNP  [Similar Products]

PNPH_HUMAN

This gene encodes an enzyme which reversibly catalyzes the phosphorolysis of purine nucleosides. The enzyme is trimeric, containing three identical subunits. Mutations which result in nucleoside phosphorylase deficiency result in defective T-cell (cell-mediated) immunity but can also affect B-cell immunity and antibody responses. Neurologic disorders may also be apparent in patients with immune defects. A known polymorphism at aa position 51 that does not affect enzyme activity has been described. A pseudogene has been identified on chromosome 2. [provided by RefSeq, Jul 2008]

NP: a metabolic enzyme with purine-nucleoside phosphorylase activity. Defects are the cause of nucleoside phosphorylase deficiency (NP deficiency), with severe T-cell immunodeficiency with neurologic disorder in children.

Protein type: Cofactor and Vitamin Metabolism - nicotinate and nicotinamide; Transferase; EC 2.4.2.1; Nucleotide Metabolism - purine; Nucleotide Metabolism - pyrimidine

Chromosomal Location of Human Ortholog: 14q13.1

Cellular Component: cytoplasm; cytosol; intracellular

Molecular Function: drug binding; nucleoside binding; phosphate binding; purine binding; purine-nucleoside phosphorylase activity

Biological Process: immune response; inosine catabolic process; nicotinamide riboside catabolic process; nucleobase, nucleoside, nucleotide and nucleic acid metabolic process; positive regulation of alpha-beta T cell differentiation; positive regulation of T cell proliferation; purine nucleotide catabolic process; purine salvage; response to drug

Disease: Purine Nucleoside Phosphorylase Deficiency

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