" /> Purine nucleoside phosphorylase deficiency - CISMeF





Preferred Label : Purine nucleoside phosphorylase deficiency;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Nucleoside phosphorylase deficiency;

Description : Purine nucleoside phosphorylase deficiency is a rare autosomal recessive immunodeficiency disorder characterized mainly by decreased T-cell function. Some patients also have neurologic impairment (review by Aust et al., 1992).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the purine nucleoside phosphorylase gene (PNP, 164050.0001);

Neoplasia : Lymphoma; Lymphosarcoma;

Laboratory abnormalities : Reduced erythrocyte purine nucleoside phosphorylase activity; Low serum uric acid; Low urine uric acid; High serum inosine levels; High serum guanosine levels; High urinary excretion of inosine, 2'deoxyinosine, guanosine, and 2'deoxyguanosine;

Prefixed ID : #613179;

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03/05/2025


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