Title : Involvement of sulfhydryl groups in time-dependent changes of diaphragm acetylcholinesterase activity by monovalent (Na+, Li+) cations - Kouniniotou-Krontiri_1994_Biochem.Mol.Biol.Int_33_485 |
Author(s) : Kouniniotou-Krontiri P , Tsakiris S , Hadjigeorgiou GM |
Ref : Biochemistry & Molecular Biology International , 33 :485 , 1994 |
Abstract :
Acetylcholinesterase (AChE) activity, as a function of time, showed a concentration dependent increase induced by NaCl, followed by a plateau. In the presence of LiCl, the enzyme activity, before its stabilization, presented an increase, followed by a decrease to a minimum value. Sucrose increased the initial rise and the final value of AChE activity and caused no changes, as a function of time, in the absence of cations. Moreover sucrose eliminated AChE activity decrease caused by LiCl. 2-mercaptoethanol induced considerable and steady increase of AChE activity, in the presence or absence of cations or sucrose and no changes, as a function of time. These results show an activating and protecting effect of sucrose on AChE and the possible involvement of sulfhydryl (SH) groups in the time-dependent changes of the enzyme activity induced by Na+ or Li+. |
PubMedSearch : Kouniniotou-Krontiri_1994_Biochem.Mol.Biol.Int_33_485 |
PubMedID: 7951067 |
Kouniniotou-Krontiri P, Tsakiris S, Hadjigeorgiou GM (1994)
Involvement of sulfhydryl groups in time-dependent changes of diaphragm acetylcholinesterase activity by monovalent (Na+, Li+) cations
Biochemistry & Molecular Biology International
33 :485
Kouniniotou-Krontiri P, Tsakiris S, Hadjigeorgiou GM (1994)
Biochemistry & Molecular Biology International
33 :485