Purine Nucleoside Phosphorylase Deficiency [PDF]
Arthritis & Rheumatism, 1979 AbstractThe biochemical features of two families with purine nucleoside phosphorylase deficiency are compared. Laboratory studies and an evaluation of kinetic and physical properties of erythrocyte purine nucleoside phosphorylase give evidence that a) the degree of abnormality in uric acid and nucleoside concentrations in plasma and urine reflect the ...
Irving H. Fox +7 more
openaire +2 more sources
PNP inhibitors selectively kill cancer cells lacking SAMHD1
Molecular & Cellular Oncology, 2020 Purine nucleoside phosphorylase inhibitors (PNP-Is) were developed to ablate transformed lymphocytes. However, only some patients with leukemia benefit from PNP-Is. We provide a molecular explanation: the deoxyribonucleoside triphosphate (dNTP) hydrolase
Tamara Davenne, Jan Rehwinkel
doaj +1 more source
An Enzymatic Flow-Based Preparative Route to Vidarabine
Molecules, 2020 The bi-enzymatic synthesis of the antiviral drug vidarabine (arabinosyladenine, ara-A), catalyzed by uridine phosphorylase from Clostridium perfringens (CpUP) and a purine nucleoside phosphorylase from Aeromonas hydrophila (AhPNP), was re-designed under ...
Lucia Tamborini +10 more
doaj +1 more source
Structure of purine nucleoside phosphorylase (DeoD) from Bacillus anthracis [PDF]
, 2005 Protein structures from the causative agent of anthrax (Bacillus anthracis) are being determined as part of a structural genomics programme. Amongst initial candidates for crystallographic analysis are enzymes involved in nucleotide biosynthesis, since ...
Blagova, E V +6 more
core +3 more sources
Purine nucleoside phosphorylase: A new marker for free oxygen radical injury to the endothelial cell [PDF]
, 1990 The effect of ischemia and reperfusion on purine nucleoside phosphorylase was studied in an isolated perfused rat liver model. This enzyme is localized primarily in the cytoplasm of the endothelial and Kupffer cells; some activity is associated with the ...
Abouna +32 more
core +1 more source
Targeting purine metabolism in ovarian cancer
Journal of Ovarian Research, 2022 Purine, an abundant substrate in organisms, is a critical raw material for cell proliferation and an important factor for immune regulation. The purine de novo pathway and salvage pathway are tightly regulated by multiple enzymes, and dysfunction in ...
Jingchun Liu +7 more
doaj +1 more source
Functional and genetic evidence that nucleoside transport is highly conserved in Leishmania species: Implications for pyrimidine-based chemotherapy [PDF]
, 2017 Leishmania pyrimidine salvage is replete with opportunities for therapeutic intervention with enzyme inhibitors or antimetabolites. Their uptake into cells depends upon specific transporters; therefore it is essential to establish whether various ...
Ali, Juma A.M. +7 more
core +2 more sources
An unusual presentation of purine nucleoside phosphorylase deficiency mimicking systemic juvenile idiopathic arthritis complicated by macrophage activation syndrome. [PDF]
Pediatr Rheumatol Online J, 2019 Arduini A +9 more
europepmc +3 more sources
Trypanosoma brucei methylthioadenosine phosphorylase protects the parasite from the antitrypanosomal effect of deoxyadenosine [PDF]
, 2016 Trypanosoma brucei causes African sleeping sickness for which no vaccine exists and available treatments are of limited use due to their high toxicity or lack of efficacy. T.
de Koning, Harry P. +4 more
core +1 more source
Pyrimidine biosynthesis is not an essential function for trypanosoma brucei bloodstream forms [PDF]
, 2013 <p>Background: African trypanosomes are capable of both pyrimidine biosynthesis and salvage of preformed pyrimidines from the host, but it is unknown whether either process is essential to the parasite.</p> <p>Methodology/Principal ...
A Hofer +51 more
core +3 more sources