Inhibition of phosphatidylinositol-4-phosphate kinase by its product phosphatidylinositol-4,5-bisphosphate.
Inhibition of phosphatidylinositol-4-phosphate kinase by its product phosphatidylinositol-4,5-bisphosphate.
复制标题
其产物磷脂酰肌醇-4,5-二磷酸对磷脂酰肌醇-4-磷酸激酶的抑制作用。
DOI:
10.1016/0006-291x(85)90584-4
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发表时间:
1985
影响因子:
3.1
通讯作者:
Bazan,NG
中科院分区:
文献类型:
--
作者:
VanRooijen,LA;Rossowska,M;Bazan,NG
Abstract Phosphatidylinositol 4, 5-bisphosphate (PIP 2) is enzymatically produced when high speed supernatant fraction from bovine retina is incubated with [γ-32 P] ATP and phosphatidylinositol 4-phosphate (PIP) as substrates. Exogenously added PIP 2 inhibits PIP kinase activity 50% at equimolar concentrations of product and substrate. Ca 2+-dependent phosphodiesteratic activity, resulting in the loss of PIP 2 and PIP and concommitant increase in myo-inositol 1, 4, 5-trisphosphate and myo-inositol 1, 4-bisphosphate, was observed when soluble retinal fractions were incubated with heat-inactivated 32 P-prelabeled guinea pig nerve ending membranes as substrate. It is suggested that polyphosphoinositides are under stringent and complex control and that upon receptor activation-mediated stimulation of phosphodiesteratic degradation release of the feedback inhibition shown here may occur and result in the synthesis and replenishment of PIP 2.
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DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
S. Fisher;L. A. A. Rooijen;B. Agranoff
通讯作者:
B. Agranoff
DOI:
10.1016/s0021-9258(18)97109-7
发表时间:
1965
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
M. Colodzin;E. P. Kennedy
通讯作者:
E. P. Kennedy
DOI:
10.1042/bj2160633
发表时间:
1983
期刊:
The Biochemical journal
影响因子:
--
作者:
C. Downes;M. Wusteman
通讯作者:
M. Wusteman
影响因子:
4.7
作者:
J. Harwood;J. Hawthorne
通讯作者:
J. Hawthorne
影响因子:
6.1
作者:
Aub,DL;PutneyJr,JW
通讯作者:
PutneyJr,JW