منابع مشابه
Human Thymidine Kinase
Cytosolic thymidine kinase (EC 2.7.1.21) has been purified 5200-fold to apparent homogeneity from normal human placenta. The purification includes sequential affinity chromatography on blue-Sepharose and a thymidine column. The molecular weight of the enzyme determined by gel filtration and sucrose density ultracentrifugation is 92,000. The subunit molecular weight is 44,000, suggesting that t...
متن کاملDeoxypyrimidine monophosphate bypass therapy for thymidine kinase 2 deficiency
Autosomal recessive mutations in the thymidine kinase 2 gene (TK2) cause mitochondrial DNA depletion, multiple deletions, or both due to loss of TK2 enzyme activity and ensuing unbalanced deoxynucleotide triphosphate (dNTP) pools. To bypass Tk2 deficiency, we administered deoxycytidine and deoxythymidine monophosphates (dCMP+dTMP) to the Tk2 H126N (Tk2(-/-)) knock-in mouse model from postnatal ...
متن کاملKSHV-TK: thymidine kinase or tyrosine kinase?
The thymidine kinases (TK) of alphaherpesviruses phosphorylate nucleosides, allowing viral replication in non-dividing cells. They also phosphorylate acyclovir (ACV), a specific antiviral when modified. Despite encoding a TK homolog, Kaposi’s sarcoma-associated herpesvirus (KSHV), a gammaherpesvirus, is relatively immune to the effects of ACV. In this issue, Gill et al (2015) show that rather t...
متن کاملFeedback Inhibition of Thymidine Kinase by Thymidine Triphosphate.
That the regulation of cell division and deoxyribonucleic acid synthesis is subject to some kind of chemical control in higher organisms is widely accepted (2-5). Davidson (2) has suggested that deoxyribonucleic acid synthesis takes place at critical concentrations of the deoxyribonucleoside triphosphates and that these compounds are components of a homeostatic mechanism. There are now at least...
متن کاملFeedback Inhibition of Thymidine Kinase by Thymidine T&phosphate*
That the regulation of cell division and deoxyribonucleic acid synthesis is subject to some kind of chemical control in higher organisms is widely accepted (2-5). Davidson (2) has suggested that deoxyribonucleic acid synthesis takes place at critical concentrations of the deoxyribonucleoside triphosphates and that these compounds are components of a homeostatic mechanism. There are now at least...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1992
ISSN: 0014-2956
DOI: 10.1111/j.1432-1033.1992.tb16951.x