Posttranslational modification of dinitrogenase reductase in Rhodospirillum rubrum treated with fluoroacetate

2018 ◽  
Vol 34 (12) ◽  
Author(s):  
Natalia Akentieva
Keyword(s):  
Posttranslational Modification ◽  
Rhodospirillum Rubrum ◽  
Dinitrogenase Reductase

scholarly journals Borate inhibits activation of inactive dinitrogenase reductase from Rhodospirillum rubrum

1981 ◽  
Vol 197 (2) ◽  
pp. 503-505 ◽  
Author(s):  
Paul W. Ludden
Keyword(s):  
Rhodospirillum Rubrum ◽  
Ph Dependence ◽  
Active Form ◽  
Aminophenylboronic Acid ◽  
Dinitrogenase Reductase ◽  
Hydroxy Groups

Borate and aminophenylboronic acid were tested as inhibitors of activation of inactive dinitrogenase reductase from Rhodospirillum rubrum. Inhibition was specific for activation because activity of the active form of the enzyme was not inhibited. Inhibition showed the pH-dependence expected if borate inhibits by binding to cis-hydroxy groups of the modifying group found on the inactive enzyme.

scholarly journals Correlation of Activity Regulation and Substrate Recognition of the ADP-Ribosyltransferase That Regulates Nitrogenase Activity in Rhodospirillum rubrum

1999 ◽  
Vol 181 (5) ◽  
pp. 1698-1702 ◽  
Author(s):  
Kitai Kim ◽  
Yaoping Zhang ◽  
Gary P. Roberts
Keyword(s):  
Rhodospirillum Rubrum ◽  
Nitrogenase Activity ◽  
Substrate Recognition ◽  
Posttranslational Regulation ◽  
Activity Regulation ◽  
Adp Ribosylation ◽  
Dinitrogenase Reductase ◽  
Adp Ribosyltransferase

ABSTRACT In Rhodospirillum rubrum, nitrogenase activity is regulated posttranslationally through the ADP-ribosylation of dinitrogenase reductase by dinitrogenase reductase ADP-ribosyltransferase (DRAT). Several DRAT variants that are altered both in the posttranslational regulation of DRAT activity and in the ability to recognize variants of dinitrogenase reductase have been found. This correlation suggests that these two properties are biochemically connected.

Sign in / Sign up

Export Citation Format

Share Document