ATP synthase from a cyanobacterial Synechocystis 6803 mutant containing the regulatory segment of the chloroplast γ subunit shows thiol modulation

1995 ◽  
Vol 23 (4) ◽  
pp. 757-760 ◽  
Author(s):  
B. E. Krenn ◽  
P. Aardewijn ◽  
H. S. Van Walraven ◽  
S. Werner-Grüne ◽  
H. Strotmann ◽  
...  
Keyword(s):  
Atp Synthase ◽  
Synechocystis 6803 ◽  
Γ Subunit

scholarly journals The ATP synthase γ subunit provides the primary site of activation of the chloroplast enzyme: experiments with a chloroplast-like Synechocystis 6803 mutant

1997 ◽  
Vol 323 (3) ◽  
pp. 841-845 ◽  
Author(s):  
Bea E. KRENN ◽  
Heinrich STROTMANN ◽  
Hendrika S. VAN WALRAVEN ◽  
Marijke J. C. SCHOLTS ◽  
Ruud KRAAYENHOF
Keyword(s):  
Atp Synthase ◽  
Membrane Vesicles ◽  
Enzyme Activation ◽  
Reduced Form ◽  
Synechocystis 6803 ◽  
Wild Type ◽  
Acid Base ◽  
Γ Subunit ◽  
Base Transition ◽  
Membrane Bound

The activation characteristics of the F1Fo-ATP synthase (where F1 and Fo are the hydrophilic and membrane-bound parts respectively of the enzyme) from Synechocystis 6803 wild-type and a Synechocystis 6803 mutant with a chloroplast-like insertion in the γ subunit have been studied. Activation of the ATP synthase in wild-type and mutant membrane vesicles was performed by acid–base transition-induced generation of a proton motive force (ΔH+). Since the mutant containing the regulatory segment of the chloroplast γ subunit showed thiol-modulation (typical of the chloroplast enzyme), this segment is indeed involved in the regulation of enzyme activation. It is shown that the ATP synthase from Synechocystis 6803 wild type corresponds functionally to the reduced form of the chloroplast ATP synthase, in view of the low ΔH+ required for activation of the enzyme and the high stability of the active state. Both the cyanobacterial wild-type and mutant ATP synthases can be activated by methanol, which apparently does not require the presence of the γ subunit regulatory segment.

scholarly journals Two genes, atpC1 and atpC2, for the γ subunit of Arabidopsis thaliana chloroplast ATP synthase

1991 ◽  
Vol 266 (12) ◽  
pp. 7333-7338
Author(s):  
N Inohara ◽  
A Iwamoto ◽  
Y Moriyama ◽  
S Shimomura ◽  
M Maeda ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Atp Synthase ◽  
Chloroplast Atp Synthase ◽  
Γ Subunit

scholarly journals An ATP synthase harboring an atypical γ-subunit is involved in ATP synthesis in tomato fruit chromoplasts

2013 ◽  
Vol 74 (1) ◽  
pp. 74-85 ◽  
Author(s):  
Irini Pateraki ◽  
Marta Renato ◽  
Joaquín Azcón-Bieto ◽  
Albert Boronat
Keyword(s):  
Atp Synthase ◽  
Tomato Fruit ◽  
Atp Synthesis ◽  
Γ Subunit

Role of γ-Subunit N- and C-Termini in Assembly of the Mitochondrial ATP Synthase in Yeast

2008 ◽  
Vol 377 (5) ◽  
pp. 1314-1323 ◽  
Author(s):  
Elke A. Dian ◽  
Panagiotis Papatheodorou ◽  
Kerstin Emmrich ◽  
Olga Randel ◽  
Andreas Geissler ◽  
...  
Keyword(s):  
Atp Synthase ◽  
Γ Subunit ◽  
Mitochondrial Atp Synthase

scholarly journals The γ subunit in the Escherichia coli ATP synthase complex (ECF1 F0 ) extends through the stalk and contacts the c subunits of the F0 part

FEBS Letters ◽  
1995 ◽  
Vol 368 (2) ◽  
pp. 235-238 ◽  
Author(s):  
Spencer D. Watts ◽  
Ying Zhang ◽  
Robert H. Fillingame ◽  
Roderick A. Capaldi
Keyword(s):  
Escherichia Coli ◽  
Atp Synthase ◽  
Γ Subunit

scholarly journals α3 β3 complex of thermophilic ATP synthase Catalysis without the γ-subunit

FEBS Letters ◽  
1989 ◽  
Vol 249 (1) ◽  
pp. 67-69 ◽  
Author(s):  
Yasuo Kagawa ◽  
Shigeo Ohta ◽  
Yoko Otawara-Hamamoto
Keyword(s):  
Atp Synthase ◽  
Γ Subunit
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