scholarly journals Modulation of Glutamine Synthetase Adenylylation and Deadenylylation Is Mediated by Metabolic Transformation of the PII-Regulatory Protein

1971 ◽  
Vol 68 (12) ◽  
pp. 2949-2953 ◽  
Author(s):  
M. S. Brown ◽  
A. Segal ◽  
E. R. Stadtman
Keyword(s):  
Glutamine Synthetase ◽  
Regulatory Protein ◽  
Metabolic Transformation

scholarly journals Time course of the uridylylation and adenylylation states in the glutamine synthetase bicyclic cascade

1993 ◽  
Vol 294 (3) ◽  
pp. 813-819 ◽  
Author(s):  
R Varón-Castellanos ◽  
B H Havsteen ◽  
M García-Moreno ◽  
E Valero-Ruiz ◽  
M Molina-Alarcón ◽  
...  
Keyword(s):  
Glutamine Synthetase ◽  
Kinetic Analysis ◽  
Time Course ◽  
Regulatory Protein ◽  
Steady States ◽  
The State ◽  
Transient Phase ◽  
Effective Sensitivity

A kinetic analysis of the glutamine synthetase bicyclic cascade is presented. It includes the dependence on time from the onset of the reaction of both the uridylylation of Shapiro's regulatory protein and the adenylylation of the glutamine synthetase. The transient phase equations obtained allow an estimation of the time elapsed until the states of uridylylation and adenylylation reach their steady-states, and therefore an evaluation of the effective sensitivity of the system. The contribution of the uridylylation cycle to the adenylylation cycle has been studied, and an equation relating the state of adenylylation at any time to the state of uridylylation at the same instant has been derived.

scholarly journals An additional PIIinEscherichia coli: a new regulatory protein in the glutamine synthetase cascade

1995 ◽  
Vol 132 (1-2) ◽  
pp. 153-157 ◽  
Author(s):  
Wally C. Heeswijk ◽  
Brenda Stegeman ◽  
Sjouke Hoving ◽  
Douwe Molenaar ◽  
Daniel Kahn ◽  
...  
Keyword(s):  
Glutamine Synthetase ◽  
Regulatory Protein
Sign in / Sign up

Export Citation Format

Share Document