Proton pumping pyrophosphatase (H+-PP,ase) of pea stem mitochondria appears to be localized on the inner surface of the inner membrane. Aminohexanediphosphonate and dichloromethylenediphosphonate exert different inhibitory effects on this activity and on that of tonoplast. Antibody raised against membrane-bound mitochondrial H+- PPjase does not react with tonoplast vesicles. Thus, plant mitochondrial H+-PPjase seems to have a molecular structure different from that of vacuolar H+-PPiase.
Orientation of pea stem mitochondrial H+-pyrophosphatase and its different characteristics from the tonoplast counterpart
VIANELLO, Angelo;ZANCANI, Marco;CASOLO, Valentino;MACRI', Francesco Arturo
1997-01-01
Abstract
Proton pumping pyrophosphatase (H+-PP,ase) of pea stem mitochondria appears to be localized on the inner surface of the inner membrane. Aminohexanediphosphonate and dichloromethylenediphosphonate exert different inhibitory effects on this activity and on that of tonoplast. Antibody raised against membrane-bound mitochondrial H+- PPjase does not react with tonoplast vesicles. Thus, plant mitochondrial H+-PPjase seems to have a molecular structure different from that of vacuolar H+-PPiase.File in questo prodotto:
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1997 Plant Cell Physiol Orientation Mito PPase.pdf
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1997_Plant Cell Physiol PPiasi.pdf
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