Results 21 to 30 of about 13,871 (203)

Hypoxanthine-Guanine Phosphoribosyltransferase/adenylate Kinase From Zobellia galactanivorans: A Bifunctional Catalyst for the Synthesis of Nucleoside-5′-Mono-, Di- and Triphosphates

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
In our search for novel biocatalysts for the synthesis of nucleic acid derivatives, we found a good candidate in a putative dual-domain hypoxanthine-guanine phosphoribosyltransferase (HGPRT)/adenylate kinase (AMPK) from Zobellia galactanivorans (ZgHGPRT ...
Javier Acosta   +9 more
doaj   +1 more source

PRTFDC1 is a genetic modifier of HPRT-deficiency in the mouse. [PDF]

open access: yesPLoS ONE, 2011
Lesch-Nyhan disease (LND) is a severe X-linked neurological disorder caused by a deficiency of hypoxanthine phosphoribosyltransferase (HPRT). In contrast, HPRT-deficiency in the mouse does not result in the profound phenotypes such as self-injurious ...
Alaine C Keebaugh   +6 more
doaj   +1 more source

Normal Uricemia in Lesch–Nyhan Syndrome and the Association with Pulmonary Embolism in a Young Child—A Case Report and Literature Review

open access: yesPediatrics and Neonatology, 2014
Deficiency of hypoxanthine phosphoribosyltransferase activity is a rare inborn error of purine metabolism with subsequent uric acid overproduction and neurologic presentations.
Jeng-Dau Tsai   +5 more
doaj   +1 more source

Association between Cigarette Smoking and Hypoxanthine Guanine Phosphoribosyltransferase Activity

open access: yesKaohsiung Journal of Medical Sciences, 2005
The aim of this study was to investigate the association between smoking behavior and hypoxanthine guanine phosphoribosyltransferase (HGPRT) activity. A cross-sectional study was performed of 82 men, including 38 non-smokers and 44 smokers.
Shun-Jen Chang   +4 more
doaj   +1 more source

Identification of a new lesch-nyhan syndrome mutation (HPRT BRASIL) and analysis of potentially heterozygous females [PDF]

open access: yesArquivos de Neuro-Psiquiatria, 1999
The mutation in the hypoxanthine-guanine phosphoribosyltransferase (HPRT) gene has been determined in two brothers affected with Lesch-Nyhan syndrome. Female members of the family who are at risk for being heterozygous carriers of the HPRT mutation were ...
PATRICK O'NEILL   +10 more
doaj   +1 more source

Human hypoxanthine-guanine phosphoribosyltransferase.

open access: yesJournal of Biological Chemistry, 1983
A mutant form of human hypoxanthine-guanine phosphoribosyltransferase (HPRTToronto) was isolated from erythrocytes of a male patient with gout due to a partial deficiency of enzyme activity. The tryptic peptides of HPRTToronto were mapped by reverse-phase high pressure liquid chromatography in an attempt to define the precise abnormality in its primary
James M. Wilson   +3 more
openaire   +3 more sources

Fine structure of the human hypoxanthine phosphoribosyltransferase gene. [PDF]

open access: yesMolecular and Cellular Biology, 1986
The human hypoxanthine phosphoribosyltransferase (HPRT) gene has been characterized by molecular cloning, mapping, and DNA sequencing techniques. The entire gene, which is about 44 kilobases in length, is composed of nine exon elements. The positions of the introns within the coding sequence are identical to those of the previously-characterized mouse ...
C T Caskey   +3 more
openaire   +3 more sources

Induced pluripotent stem cells from subjects with Lesch-Nyhan disease

open access: yesScientific Reports, 2021
Lesch-Nyhan disease (LND) is an inherited disorder caused by pathogenic variants in the HPRT1 gene, which encodes the purine recycling enzyme hypoxanthine–guanine phosphoribosyltransferase (HGprt).
Diane J. Sutcliffe   +12 more
doaj   +1 more source

Thermophilic phosphoribosyltransferases Thermus thermophilus HB27 in nucleotide synthesis

open access: yesBeilstein Journal of Organic Chemistry, 2018
Phosphoribosyltransferases are the tools that allow the synthesis of nucleotide analogues using multi-enzymatic cascades. The recombinant adenine phosphoribosyltransferase (TthAPRT) and hypoxanthine phosphoribosyltransferase (TthHPRT) from Thermus ...
Ilja V. Fateev   +9 more
doaj   +1 more source

dGTP starvation in Escherichia coli provides new insights into the thymineless-death phenomenon.

open access: yesPLoS Genetics, 2014
Starvation of cells for the DNA building block dTTP is strikingly lethal (thymineless death, TLD), and this effect is observed in all organisms. The phenomenon, discovered some 60 years ago, is widely used to kill cells in anticancer therapies, but many ...
Mark Itsko, Roel M Schaaper
doaj   +1 more source

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