Possible involvement of protein phosphorylation in the regulation of cytoplasmic organization and streaming in root hair cells as revealed by a protein phosphatase inhibitor, calyculin A

PROTOPLASMA ◽  
2000 ◽  
Vol 211 (1-2) ◽  
pp. 29-38 ◽  
Author(s):  
E. Yokota ◽  
K. Hibara ◽  
N. Imamichi ◽  
T. Shimmen
Keyword(s):  
Protein Phosphorylation ◽  
Hair Cells ◽  
Root Hair ◽  
Protein Phosphatase ◽  
Calyculin A ◽  
Phosphatase Inhibitor ◽  
Protein Phosphatase Inhibitor ◽  
Cytoplasmic Organization ◽  
Root Hair Cells

scholarly journals Mechanism of Activation of PKB/Akt by the Protein Phosphatase Inhibitor Calyculin A

2010 ◽  
Vol 58 (3) ◽  
pp. 147-156 ◽  
Author(s):  
Mercedes Pozuelo-Rubio ◽  
Nick R. Leslie ◽  
Jane Murphy ◽  
Carol MacKintosh
Keyword(s):  
Protein Phosphatase ◽  
Calyculin A ◽  
Phosphatase Inhibitor ◽  
Protein Phosphatase Inhibitor

Protein phosphatase inhibitor calyculin – A modulates activation markers in TRAP-stimulated human platelets

Platelets ◽  
2010 ◽  
Vol 21 (7) ◽  
pp. 555-562 ◽  
Author(s):  
Zsuzsa Simon ◽  
Andrea Kiss ◽  
Ferenc Erdödi ◽  
Hendra Setiadi ◽  
Ildikó Beke Debreceni ◽  
...  
Keyword(s):  
Protein Phosphatase ◽  
Human Platelets ◽  
Calyculin A ◽  
Activation Markers ◽  
Phosphatase Inhibitor ◽  
Protein Phosphatase Inhibitor

Protein phosphorylation is suppressed when wheat embryos are hydrated and remain growth arrested

2004 ◽  
Vol 14 (3) ◽  
pp. 287-296 ◽  
Author(s):  
Ryan L. Wagner ◽  
M.K. Walker-Simmons
Keyword(s):  
Triticum Aestivum ◽  
Protein Phosphorylation ◽  
Okadaic Acid ◽  
Protein Phosphatase ◽  
Phosphatase Inhibitor ◽  
Protein Phosphatase Inhibitor ◽  
Wheat Embryos ◽  
High Degree ◽  
H Protein ◽  
Net Protein

An early difference in net protein phosphorylation activity occurred in dormant and after-ripened wheat (Triticum aestivum L.) grains within the first hour of imbibition at 30°C. Embryos from dry, dormant and after-ripened caryopses exhibited a high degree of protein phosphorylation, particularly of four proteins (68, 54, 51 and 42 kDa). Upon hydration, protein phosphorylation activity in dormant embryos decreased within 1 h and reached minimal phosphorylation activity by 5 h. Protein phosphorylation activity in after-ripened (germinable) embryos was not suppressed and remained high during germination. If the hydrated dormant embryos were dried, protein phosphorylation activity was restored. Application of the protein phosphatase inhibitor, okadaic acid, partially overcame dormancy and slowed the decrease in phosphorylation activity. These results suggested that reduction of protein phosphorylation activity slowed the rate of germination.

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