A plasma membrane Ca2+ ATPase isoform at the postsynaptic density.
A plasma membrane Ca2+ ATPase isoform at the postsynaptic density.
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DOI:
10.1016/j.neuroscience.2010.05.062
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发表时间:
2010-09-01
期刊:
影响因子:
3.3
通讯作者:
Weinberg, R. J.
中科院分区:
文献类型:
--
作者:
Burette, A. C.;Strehler, E. E.;Weinberg, R. J.
Most excitatory input in the hippocampus impinges on dendritic spines. Entry of Ca2+ into spines through NMDA receptors can trigger a sequence of biochemical reactions leading to sustained changes in synaptic efficacy. To provide specificity, dendritic spines restrict the diffusion of Ca2+ signaling and downstream molecules. The postsynaptic density (the most prominent subdomain within the spine) is the site of Ca2+ entry through NMDA receptors. We here demonstrate that Ca2+ can also be removed via pumps embedded in the postsynaptic density. Using light- and electron-microscopic immunohistochemistry, we find that PMCA2w, a member of the plasma membrane Ca2+-ATPase family, concentrates at the PSD of most hippocampal spines. We propose that PMCA2w may be recruited into supramolecular complexes at the postsynaptic density, thus helping to regulate Ca2+ nanodomains at subsynaptic sites. Taken together, these results suggest a novel function for PMCAs as modulators of Ca2+ signaling at the synapse.
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影响因子:
2.5
作者:
Burette, Alain C.;Strehler, Emanuel E.;Weinberg, Richard J.
通讯作者:
Weinberg, Richard J.
影响因子:
3.2
作者:
PHEND, KD;WEINBERG, RJ;RUSTIONI, A
通讯作者:
RUSTIONI, A
影响因子:
5.3
作者:
Dumont, RA;Lins, U;Gillespie, PG
通讯作者:
Gillespie, PG
DOI:
10.1196/annals.1387.023
发表时间:
2007-01-01
期刊:
SODIUM-CALCIUM EXCHANGE AND THE PLASMA MEMBRANE CA2+-ATPASE IN CELL FUNCTION: FIFTH INTERNATIONAL CONFERENCE
影响因子:
--
作者:
Strehler, Emanuel E.;Caride, Ariel J.;Enyedi, Agnes
通讯作者:
Enyedi, Agnes
影响因子:
5.3
作者:
Scheuss, Volker;Yasuda, Ryohei;Svoboda, Karel
通讯作者:
Svoboda, Karel