Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.6.1.3 (ATPase)
 65,361 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Our purpose was to determine whether phospholipase C stimulated thymidine kinase activity of regenerating rat liver. We determined effects of phospholipase C upon TMP formation by rat liver extracts prepared at 0, 12, 24, 36 and 48 hr following partial hepatectomy. Data were obtained which supported these conclusions: (a) Commercial preparations of phospholipase C contained nucleoside phosphotransferase activity; (b) phospholipase C exerted no appreciable stimulatory influence upon thymidine kinase activity of regenerating rat liver; and (c), apparent stimulation of thymidine kinase was associated with linked activities of two enzymes, viz., liver extract-ATPase activity and nucleoside phosphotransferase activity.
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PMID:Does phospholipase C stimulate thymide kinase activity of rat liver extracts prepared after partial hepatectomy. 12 59

The activities of TdR kinase2 (ATP: thymidine 5'-phosphotransferase, EC 2.7.1.21), AdR kinase (ATP: deoxyadenosine 5'-phosphotransferase, EC 2.7.1.76), GdR kinase (ATP: deoxyguanosine 5'-phosphotransferase, without EC number), ATP (Mg2+)-ase (ATP phosphohydrolase, EC 3.6.1.3), nucleoside diphosphatase (nucleoside diphosphate phosphohydrolase, EC 3.6.1.6), nucleoside phosphotransferase (AMP: deoxynucleoside phosphotransferase, EC 2.7.1.77) and ribonucleotide 5'-diphosphate reductase (EC 1.17.4.1) were assayed in mitochondria of normal and regenerating rat liver. The activities of deoxynucleoside kinases are regulated: (a) by feedback inhibition of TdR kinase with dTTP and dCTP, and GdR kinase with dGTP; (b) GdR and AdR kinases by AdR and GdR inhibition, respectively; (c) by stimulation of GdR kinase with dTDP, dTTP and dATP. The stimulatory effects are correlated with changes of ATP (Mg2+)-ase and NDP-ase activities in regenerating liver mitochondria.
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PMID:Regulation of deoxynucleoside kinase activities in rat liver mitochondria. 612 3