Photoactivatable genetically encoded calcium indicators for targeted neuronal imaging

The photoactivatable calcium sensors reported in this paper allow simultaneous highlighting of cellular morphology and recording of calcium activity, which is demonstrated in neuronal cultures, in Drosophila and in zebrafish. Circuit mapping requires knowledge of both structural and functional conne...

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Veröffentlicht in:Nature methods 2015-09, Vol.12 (9), p.852-858
Hauptverfasser: Berlin, Shai, Carroll, Elizabeth C, Newman, Zachary L, Okada, Hitomi O, Quinn, Carson M, Kallman, Benjamin, Rockwell, Nathan C, Martin, Shelley S, Lagarias, J Clark, Isacoff, Ehud Y
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container_issue 9
container_start_page 852
container_title Nature methods
container_volume 12
creator Berlin, Shai
Carroll, Elizabeth C
Newman, Zachary L
Okada, Hitomi O
Quinn, Carson M
Kallman, Benjamin
Rockwell, Nathan C
Martin, Shelley S
Lagarias, J Clark
Isacoff, Ehud Y
description The photoactivatable calcium sensors reported in this paper allow simultaneous highlighting of cellular morphology and recording of calcium activity, which is demonstrated in neuronal cultures, in Drosophila and in zebrafish. Circuit mapping requires knowledge of both structural and functional connectivity between cells. Although optical tools have been made to assess either the morphology and projections of neurons or their activity and functional connections, few probes integrate this information. We have generated a family of photoactivatable genetically encoded Ca 2+ indicators that combines attributes of high-contrast photolabeling with high-sensitivity Ca 2+ detection in a single-color protein sensor. We demonstrated in cultured neurons and in fruit fly and zebrafish larvae how single cells could be selected out of dense populations for visualization of morphology and high signal-to-noise measurements of activity, synaptic transmission and connectivity. Our design strategy is transferrable to other sensors based on circularly permutated GFP (cpGFP).
doi_str_mv 10.1038/nmeth.3480
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subjects 14
14/19
14/35
631/378/87
Animals
Bioinformatics
Biological Microscopy
Biological Techniques
Biomedical and Life Sciences
Biomedical Engineering/Biotechnology
Calcium - metabolism
Calcium Signaling - physiology
Cell Tracking - methods
Cells, Cultured
Cellular biology
Danio rerio
Drosophila
Fluorescent proteins
Fruits
Larvae
Life Sciences
Light
Luminescent Proteins - genetics
Luminescent Proteins - metabolism
Medical research
Medicine, Experimental
Methods
Microscopy, Fluorescence - methods
Morphology
Neuroimaging
Neurons
Neurons - cytology
Neurons - physiology
Optogenetics - methods
Population density
Probes
Protein Engineering - methods
Proteins
Proteomics
Rats
Sensors
Zebrafish
title Photoactivatable genetically encoded calcium indicators for targeted neuronal imaging
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