scholarly journals Role of ATP-bound divalent metal ion in the conformation and function of actin. Comparison of Mg-ATP, Ca-ATP, and metal ion-free ATP-actin.

1991 ◽  
Vol 266 (12) ◽  
pp. 7668-7675
Author(s):  
C Valentin-Ranc ◽  
M F Carlier
Keyword(s):  
Metal Ion ◽  
Divalent Metal ◽  
Divalent Metal Ion ◽  
And Function

scholarly journals Probing the role of the divalent metal ion in uteroferrin using metal ion replacement and a comparison to isostructural biomimetics

2007 ◽  
Vol 13 (1) ◽  
pp. 139-155 ◽  
Author(s):  
Gerhard Schenk ◽  
Rosely A. Peralta ◽  
Suzana Cimara Batista ◽  
Adailton J. Bortoluzzi ◽  
Bruno Szpoganicz ◽  
...  
Keyword(s):  
Metal Ion ◽  
Divalent Metal ◽  
Divalent Metal Ion

Role of the Divalent Metal Ion in Sugar Binding, Ring Opening, and Isomerization by D-Xylose Isomerase: Replacement of a Catalytic Metal by an Amino Acid

Biochemistry ◽  
1994 ◽  
Vol 33 (6) ◽  
pp. 1488-1494 ◽  
Author(s):  
Karen N. Allen ◽  
Arnon Lavie ◽  
Arthur Glasfeld ◽  
Timothy N. Tanada ◽  
Daniel P. Gerrity ◽  
...  
Keyword(s):  
Amino Acid ◽  
Ring Opening ◽  
Metal Ion ◽  
Xylose Isomerase ◽  
Divalent Metal ◽  
Sugar Binding ◽  
Divalent Metal Ion ◽  
Catalytic Metal

A novel phosphagen phosphotransferase in the plerocercoids of Schistocephalus solidus (Cestoda: Pseudophyllidea)

Parasitology ◽  
1981 ◽  
Vol 82 (1) ◽  
pp. 11-16 ◽  
Author(s):  
J. Barrett ◽  
G. M. Lloyd
Keyword(s):  
Metal Ion ◽  
Fasciola Hepatica ◽  
Divalent Metal ◽  
Hymenolepis Diminuta ◽  
Ligula Intestinalis ◽  
Schistocephalus Solidus ◽  
Absolute Requirement ◽  
Phosphate Donor ◽  
Divalent Metal Ion

SUMMARYNeither phosphagens nor phosphagen phosphotransferase activity could be detected in Fasciola hepatica, Hymenolepis diminuta, Moniezia expansa or in the plerocercoids of Ligula intestinalis. The plerocercoids of Schistocephalus solidus, however, possess an active taurocyamine phosphotransferase, although it too contains no detectable phosphagens. The taurocyamine phosphotransferase of S. solidus has an absolute requirement for a divalent metal ion and ATP could not be replaced by ITP, GTP, CTP, or UTP as the phosphate donor. The role of phosphagens in helminths is discussed.

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