-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
1 parent
9a74974
commit f185c2a
Showing
4 changed files
with
603 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,40 @@ | ||
%% This BibTeX bibliography file was created using BibDesk. | ||
%% http://bibdesk.sourceforge.net/ | ||
%% Created for Lukasz Jablonski at 2016-07-12 12:25:26 +0200 | ||
%% Saved with string encoding Unicode (UTF-8) | ||
@article{Delvendahl:2015aa, | ||
Abstract = {Fast synchronous neurotransmitter release at the presynaptic active zone is triggered by local Ca2+ signals, which are confined in their spatiotemporal extent by endogenous Ca2+ buffers. However, it remains elusive how rapid and reliable Ca2+ signaling can be sustained during repetitive release. Here, we established quantitative two-photon Ca2+ imaging in cerebellar mossy fiber boutons, which fire at exceptionally high rates. We show that endogenous fixed buffers have a surprisingly low Ca2+-binding ratio (∼15) and low affinity, whereas mobile buffers have high affinity. Experimentally constrained modeling revealed that the low endogenous buffering promotes fast clearance of Ca2+ from the active zone during repetitive firing. Measuring Ca2+ signals at different distances from active zones with ultra-high-resolution confirmed our model predictions. Our results lead to the concept that reduced Ca2+ buffering enables fast active zone Ca2+ signaling, suggesting that the strength of endogenous Ca2+ buffering limits the rate of synchronous synaptic transmission.}, | ||
Author = {Delvendahl, Igor and Jablonski, Lukasz and Baade, Carolin and Matveev, Victor and Neher, Erwin and Hallermann, Stefan}, | ||
Date-Added = {2016-02-04 10:04:09 +0000}, | ||
Date-Modified = {2016-07-12 10:24:22 +0000}, | ||
Eprint = {http://www.pnas.org/content/112/23/E3075.full.pdf}, | ||
Journal = {Proceedings of the National Academy of Sciences}, | ||
Number = {23}, | ||
Pages = {E3075-E3084}, | ||
Title = {Reduced endogenous {Ca$^{2+}$} buffering speeds active zone {Ca$^{2+}$} signaling}, | ||
Volume = {112}, | ||
Year = {2015}, | ||
Bdsk-Url-1 = {http://www.pnas.org/content/112/23/E3075.abstract}, | ||
Bdsk-Url-2 = {http://dx.doi.org/10.1073/pnas.1508419112}} | ||
|
||
@comment{BibDesk Static Groups{ | ||
<?xml version="1.0" encoding="UTF-8"?> | ||
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> | ||
<plist version="1.0"> | ||
<array> | ||
<dict> | ||
<key>group name</key> | ||
<string>NOT USED?</string> | ||
<key>keys</key> | ||
<string></string> | ||
</dict> | ||
</array> | ||
</plist> | ||
}} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,27 @@ | ||
%% This BibTeX bibliography file was created using BibDesk. | ||
%% http://bibdesk.sourceforge.net/ | ||
%% Created for Lukasz Jablonski at 2016-02-04 12:08:40 +0100 | ||
%% Saved with string encoding Unicode (UTF-8) | ||
@article{Delvendahl:2015aa, | ||
Abstract = {Fast synchronous neurotransmitter release at the presynaptic active zone is triggered by local Ca2+ signals, which are confined in their spatiotemporal extent by endogenous Ca2+ buffers. However, it remains elusive how rapid and reliable Ca2+ signaling can be sustained during repetitive release. Here, we established quantitative two-photon Ca2+ imaging in cerebellar mossy fiber boutons, which fire at exceptionally high rates. We show that endogenous fixed buffers have a surprisingly low Ca2+-binding ratio (∼15) and low affinity, whereas mobile buffers have high affinity. Experimentally constrained modeling revealed that the low endogenous buffering promotes fast clearance of Ca2+ from the active zone during repetitive firing. Measuring Ca2+ signals at different distances from active zones with ultra-high-resolution confirmed our model predictions. Our results lead to the concept that reduced Ca2+ buffering enables fast active zone Ca2+ signaling, suggesting that the strength of endogenous Ca2+ buffering limits the rate of synchronous synaptic transmission.}, | ||
Author = {Delvendahl, Igor and Jablonski, Lukasz and Baade, Carolin and Matveev, Victor and Neher, Erwin and Hallermann, Stefan}, | ||
Date-Added = {2016-02-04 10:04:09 +0000}, | ||
Date-Modified = {2016-02-04 10:37:29 +0000}, | ||
Doi = {10.1073/pnas.1508419112}, | ||
Eprint = {http://www.pnas.org/content/112/23/E3075.full.pdf}, | ||
Journal = {Proceedings of the National Academy of Sciences}, | ||
Number = {23}, | ||
Pages = {E3075-E3084}, | ||
Title = {Reduced endogenous {Ca$^{2+}$} buffering speeds active zone {Ca$^{2+}$} signaling}, | ||
Url = {http://www.pnas.org/content/112/23/E3075.abstract}, | ||
Volume = {112}, | ||
Year = {2015}, | ||
Bdsk-Url-1 = {http://www.pnas.org/content/112/23/E3075.abstract}, | ||
Bdsk-Url-2 = {http://dx.doi.org/10.1073/pnas.1508419112}} |
Oops, something went wrong.