Ornithine decarboxylase and transglutaminase activities in rat placenta during pregnancy.
Ornithine decarboxylase (L-Orbithine carboxylase, E.C. 4.1.1.17) and transglutaminase (R-glutaminylpeptide: amine gamma-glutamyltransferase, E.C. 2.3.2.1.13), enzymes implicated in the regulation of growth processes, were studied in rat placenta during pregnancy; the specific activity of TGase increased from the 15th day until the 21st day of pregnancy while no significant difference of ODC activity was observed; moreover, the ODCase/TGase ratio decreased significantly in rat term placenta.
D000818:Animals; D005260:Female; D009955:Ornithine Decarboxylase / Q000378:metabolism*; D010920:Placenta / Q000201:enzymology*; D011247:Pregnancy; D011270:Pregnancy, Animal / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors; D011503:Transglutaminases / Q000378:metabolism*
D011503:Transglutaminases; D009955:Ornithine Decarboxylase