The activities of enzymes of purine metabolism in murine thymus dependent lymphocytes. 1984

Y Sidi, and P Livne, and S Brosh, and M Pecht, and D Shilder, and J Pinkhas, and N Trainin, and O Sperling

Measurement of the activities of purine metabolizing enzymes in murine T cell subpopulations showed that these activities differed markedly among T cells of different levels of functional maturity. The activities of adenosine deaminase and deoxyadenosine phosphorylation were highest in immature, PNA + thymocytes, while the activities of purine nucleoside phosphorylase, ecto-5'-nucleotidase and deoxyguanosine phosphorylation were highest in mature, splenic T cells. These enzymes' activities can be used as biochemical markers for T cell of different degree of maturation.

UI MeSH Term Description Entries
D008297 Male Males
D009708 Nucleotidases A class of enzymes that catalyze the conversion of a nucleotide and water to a nucleoside and orthophosphate. EC 3.1.3.-.
D010770 Phosphotransferases A rather large group of enzymes comprising not only those transferring phosphate but also diphosphate, nucleotidyl residues, and others. These have also been subdivided according to the acceptor group. (From Enzyme Nomenclature, 1992) EC 2.7. Kinases,Phosphotransferase,Phosphotransferases, ATP,Transphosphorylase,Transphosphorylases,Kinase,ATP Phosphotransferases
D011683 Purine-Nucleoside Phosphorylase An enzyme that catalyzes the reaction between a purine nucleoside and orthophosphate to form a free purine plus ribose-5-phosphate. EC 2.4.2.1. Inosine Phosphorylase,Nicotinamide Riboside Phosphorylase,Purine Nucleoside Phosphorylases,Nucleoside Phosphorylases, Purine,Phosphorylase, Inosine,Phosphorylase, Nicotinamide Riboside,Phosphorylase, Purine-Nucleoside,Phosphorylases, Purine Nucleoside,Purine Nucleoside Phosphorylase,Riboside Phosphorylase, Nicotinamide
D011687 Purines A series of heterocyclic compounds that are variously substituted in nature and are known also as purine bases. They include ADENINE and GUANINE, constituents of nucleic acids, as well as many alkaloids such as CAFFEINE and THEOPHYLLINE. Uric acid is the metabolic end product of purine metabolism.
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D003842 Deoxycytidine Kinase An enzyme that catalyzes reversibly the phosphorylation of deoxycytidine with the formation of a nucleoside diphosphate and deoxycytidine monophosphate. Cytosine arabinoside can also act as an acceptor. All natural nucleoside triphosphates, except deoxycytidine triphosphate, can act as donors. The enzyme is induced by some viruses, particularly the herpes simplex virus (HERPESVIRUS HOMINIS). EC 2.7.1.74. Kinase, Deoxycytidine
D000243 Adenosine Deaminase An enzyme that catalyzes the hydrolysis of ADENOSINE to INOSINE with the elimination of AMMONIA. Adenosine Aminohydrolase,Aminohydrolase, Adenosine,Deaminase, Adenosine
D000248 Adenosine Kinase An enzyme that catalyzes the formation of ADP plus AMP from adenosine plus ATP. It can serve as a salvage mechanism for returning adenosine to nucleic acids. EC 2.7.1.20. Kinase, Adenosine
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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