A handful of new 'GCaMPs' with improved properties for imaging neuronal activity are now available.
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References
Chen, T.-W. et al. Ultrasensitive fluorescent proteins for imaging neuronal activity. Nature 499, 295–300 (2013).
Ohkura, M. et al. Genetically encoded green fluorescent Ca2+ indicators with improved detectability for neuronal Ca2+ signals. PLoS One 7, e51286 (2012).
Sun, X.R. et al. Fast GCaMPs for improved tracking of neuronal activity. Nat. Commun. 4, 2170 (2013).
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Pastrana, E. Calcium sensors reach new heights. Nat Methods 10, 824 (2013). https://doi.org/10.1038/nmeth.2628
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DOI: https://doi.org/10.1038/nmeth.2628
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