An Expanded GCaMP Reporter Toolkit for Functional Imaging in

Overview

Journal bioRxiv

Date 2023 Mar 22

PMID 36945463

Authors

Jimmy Ding

Lucinda Peng

Sihoon Moon

Hyun Jee Lee

Dhaval S Patel

Hang Lu

Affiliations

Soon will be listed here.

Abstract

In living organisms, changes in calcium flux are integral to many different cellular functions and are especially critical for the activity of neurons and myocytes. Genetically encoded calcium indicators (GECIs) have been popular tools for reporting changes in calcium levels . In particular, GCaMP, derived from GFP, are the most widely used GECIs and have become an invaluable toolkit for neurophysiological studies. Recently, new variants of GCaMP, which offer a greater variety of temporal dynamics and improved brightness, have been developed. However, these variants are not readily available to the research community. This work reports a set of GCaMP6 and jGCaMP7 reporters optimized for studies. Our toolkit provides reporters with improved dynamic range, varied kinetics, and targeted subcellular localizations. Besides optimized routine uses, this set of reporters are also well-suited for studies requiring fast imaging speeds and low magnification or low-cost platforms.

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