Dynamic recruitment of phospholipase C gamma at transiently immobilized GPI-anchored receptor clusters induces IP3-Ca2+ signaling: single-molecule tracking study 2.
Dynamic recruitment of phospholipase C gamma at transiently immobilized GPI-anchored receptor clusters induces IP3-Ca2+ signaling: single-molecule tracking study 2.
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DOI:
10.1083/jcb.200609175
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发表时间:
2007-05-21
期刊:
影响因子:
--
通讯作者:
Kusumi A
中科院分区:
文献类型:
--
作者:
Suzuki KG;Fujiwara TK;Edidin M;Kusumi A
Clusters of CD59, a glycosylphosphatidylinositol-anchored receptor (GPI-AR), with physiological sizes of approximately six CD59 molecules, recruit Gαi2 and Lyn via protein–protein and raft interactions. Lyn is activated probably by the Gαi2 binding in the same CD59 cluster, inducing the CD59 cluster's binding to F-actin, resulting in its immobilization, termed stimulation-induced temporary arrest of lateral diffusion (STALL; with a 0.57-s lifetime, occurring approximately every 2 s). Simultaneous single-molecule tracking of GFP-PLCγ2 and CD59 clusters revealed that PLCγ2 molecules are transiently (median = 0.25 s) recruited from the cytoplasm exclusively at the CD59 clusters undergoing STALL, producing the IP3–Ca2+ signal. Therefore, we propose that the CD59 cluster in STALL may be a key, albeit transient, platform for transducing the extracellular GPI-AR signal to the intracellular IP3–Ca2+ signal, via PLCγ2 recruitment. The prolonged, analogue, bulk IP3–Ca2+ signal, which lasts for more than several minutes, is likely generated by the sum of the short-lived, digital-like IP3 bursts, each created by the transient recruitment of PLCγ2 molecules to STALLed CD59.
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影响因子:
7.8
作者:
Kenworthy, Anne K;Nichols, Benjamin J;Remmert, Catha L;Hendrix, Glenn M;Kumar, Mukesh;Zimmerberg, Joshua;Lippincott-Schwartz, Jennifer
通讯作者:
Lippincott-Schwartz, Jennifer
DOI:
10.1083/jcb.200503110
发表时间:
2005-11-07
期刊:
The Journal of cell biology
影响因子:
--
作者:
Larson DR;Gosse JA;Holowka DA;Baird BA;Webb WW
通讯作者:
Webb WW
影响因子:
7.8
作者:
Gómez-Moutón, C;Lacalle, RA;Mira, E;Jiménez-Baranda, S;Barber, DF;Carrera, AC;Martínez, C;Mañes, S
通讯作者:
Mañes, S
影响因子:
21.3
作者:
Glebov, OO;Nichols, BJ
通讯作者:
Nichols, BJ
DOI:
10.1073/pnas.2336102100
发表时间:
2003-11-25
影响因子:
11.1
作者:
Kwik, J;Boyle, S;Edidin, M
通讯作者:
Edidin, M