Search: onr:"swepub:oai:gup.ub.gu.se/291211" >
Intracellular Elect...
-
Larsson, AnnaGothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology
(author)
Intracellular Electrochemical Nanomeasurements Reveal that Exocytosis of Molecules at Living Neurons is Subquantal and Complex
- Article/chapterEnglish2020
Publisher, publication year, extent ...
Numbers
-
LIBRIS-ID:oai:gup.ub.gu.se/291211
-
https://gup.ub.gu.se/publication/291211URI
-
https://doi.org/10.1002/anie.201914564DOI
Supplementary language notes
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
Since the early work of Bernard Katz, the process of cellular chemical communication through exocytosis, quantal release, has been considered to be all or none. Recent evidence has shown exocytosis to be partial or "subquantal" at single-cell model systems, but there is a need to understand this at communicating nerve cells. Partial release allows nerve cells to control the signal at the site of release during individual events, for which the smaller the fraction released, the greater the range of regulation. Herein, we show that the fraction of the vesicular octopamine content released from a living Drosophila larval neuromuscular neuron is very small. The percentage of released molecules was found to be only 4.5 % for simple events and 10.7 % for complex (i.e., oscillating or flickering) events. This large content, combined with partial release controlled by fluctuations of the fusion pore, offers presynaptic plasticity that can be widely regulated.
Subject headings and genre
-
NATURVETENSKAP Kemi hsv//swe
-
NATURAL SCIENCES Chemical Sciences hsv//eng
-
amperometry
-
Drosophila
-
exocytosis
-
neurochemistry
-
vesicles
-
vesicular exocytosis
-
fusion pore
-
chromaffin cells
-
full fusion
-
vesicles
-
release
-
chromogranins
-
drosophila
-
ultrastructure
-
transmitters
-
Chemistry
Added entries (persons, corporate bodies, meetings, titles ...)
-
Majdi, Soodabeh,1980Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology(Swepub:gu)xmajso
(author)
-
Oleinick, A.
(author)
-
Svir, I.
(author)
-
Dunevall, JohanGothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology(Swepub:gu)xdunej
(author)
-
Amatore, C.
(author)
-
Ewing, Andrew G,1957Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology(Swepub:gu)xewian
(author)
-
Göteborgs universitetInstitutionen för kemi och molekylärbiologi
(creator_code:org_t)
Related titles
-
In:Angewandte Chemie-International Edition: Wiley59:17, s. 6711-67141433-78511521-3773
Internet link
Find in a library
To the university's database