Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: synthase signal

Sortuj według:

Ogranicz wyniki do:

Phosphorylation of sucrose synthase from maize seedlings

100%

Lindblom S., Ek P., Muszynska G., Ek B., Szczegielniak J., Engstrom L.

Acta Biochimica Polonica

1997

tom 44

nr 4

Two isoforms of sucrose synthase (SS1 and SS2) from maize (Zea mays, var. Mona) seedlings co-purified with a calcium and phospholipid dependent protein kinase. The enzymatic preparation obtained gave a positive reaction with the antibody against mammalian protein kinase C. Maize sucrose synthase was phosphorylated by the endogenous protein kinase. Also, mammalian protein kinases (protein kinase C and protein kinase A) were able to phosphorylate the 86 kDa subunit of sucrose synthase. When excised seedlings were fed [32P]orthophosphate, sucrose synthase was also phosphorylated. Microsequencing of in vivo labelled enzyme has shown phosphorylation of Ser-15 in SS2. The present work provides evidence that maize sucrose synthase is the physiological substrate of the endogenous calcium and phospholipid dependent protein kinase(s).

Ograniczanie wyników

1 Acta Biochimica Polonica

1 Ek B.

1 Ek P.

1 Engstrom L.

1 Lindblom S.

1 Muszynska G.

1 Szczegielniak J.

1 1997

Wyniki wyszukiwania

Phosphorylation of sucrose synthase from maize seedlings