Calcium-ion sensor clones
Fluorescent protein-based Ca2+ sensors, which are composed with calmodulin, fluorescent protein and M13 peptide (CaM binding domain of myosin light chain kinase), are designated to visualize intracellular [Ca2+] dynamics.
Various improvements of the Ca2+ sensors have been made for optimum temperature, signal/noise ratio, susceptibility and so on.
Many papers using Ca2+ sensors have been published reporting the estimation of calcium concentration.
G-CaMP and R-CaMP
probe name | Ca2+affinity (Kd, nM) | dynamic range (Fmax/Fmin) | features&application | refference | plasmid clone (cat. num) |
G-CaMP1.6 | 146 | 4.9 | Brightness improved version. Work at 25oC (hippocampal slice of rat) to 28oC (HEK293 cell, HeLa cell) but not at 37oC (HEK293 cell). | PMID 11175727, 16159115, 16537386 | pN1-G-Camp1.6 (RDB06749) |
G-CaMP2 | 146 | 3.9 to 4.9 | Heat stable version. Work at 37oC (HEK293 cell, heart of mouse embryo, primary culture of hippocampal astrocytes). | PMID 16537386, 22472649 | pN1-G-CaMP2 (RDB06750) |
G-CaMP-HS | 102 | 4.1 | High-Ca2+ affinity version (ie: mammalian cell, zebrafish). | PMID 21383146, 27239939 | G-CaMP-HS (RDB14607) |
G-CaMP6 | 158 | 11.4 to 27.9 | Sensitivity improved version. Quick ON/OFF response allow to observe neuronal-cell calcium spikes (ie: mouse brain section, mouse B cell, C. elegans). | PMID 23240011, 27385517, 27428827 | G-CaMP6 (RDB14609) pMXs-IRES-hNGFR_G-CaMP6 (RDB14513) |
G-CaMP7.09 | 212 | 19.3 | Enhanced brightness allow to observe flashing fluorescence of iPS cell-derived cardiomyocytes of cynomolgus monkey. | PMID 27723741 | G-CaMP7.09 (RDB14612) |
G-CaMP9a | 59 | Fast kinetics and a high signal-to-noise ratio (ie: tg-mouse). | Cell Reports Methods 2: 100168 (2022) | G-CaMP9a (RDB19172) | |
R-CaMP1.07 | 192 | 14.4 to 28.7 | CaMP with a red fluorescent protein. | PMID 22808076, 25419959 | R-CaMP1.07 (RDB14608) |
R-CaMP2 | 69 | 4.8 | High affinity Ca/CaM sensor (ie: cultured hippocampal neurons). | PMID 25419959 | pBS-CaMKIIpro-R-CaMP2-WPRE (RDB19475) |
RCaMP3 | 101 | PMID 38514778 | pAAV-eSyn-RCaMP3-WPRE (RDB19694) | ||
XCaMP-R | 97 | One of a series of multicolor calcium sensors XCaMP | PMID 31080068 | pBS-CaMKIIpro-XCaMP-R-WPRE (RDB19474) | |
XCaMP-G | 200 | One of a series of multicolor calcium sensors XCaMP | PMID 31080068 | pBS-CaMKIIpro-XCaMP-G-WPRE (RDB19471) | |
XCaMP-Gf | 128 | One of a series of multicolor calcium sensors XCaMP | PMID 31080068 | pBS-CaMKIIpro-XCaMP-Gf-WPRE (RDB19470) | |
XCaMP-Y | 81 | One of a series of multicolor calcium sensors XCaMP | PMID 31080068 | pBS-CaMKIIpro-XCaMP-Y-WPRE (RDB19472) | |
XCaMP-B | 71 | One of a series of multicolor calcium sensors XCaMP | PMID 31080068 | pBS-CaMKIIpro-XCaMP-B-WPRE (RDB19473) |
Yellow Cameleon
probe name | Ca2+affinity (Kd, nM) | dynamic range (Fmax/Fmin) | features&application | refference | plasmid clone (cat. num) |
YC2.12 Yellow cameleon | Ca2+ indicator based on calmodulin and FRET by CFP-Venus pair (ie. Purkinje neuron of mouse cerebellar slice). | PMID 11753368, 15247428 | YC2.12/pCS2 (RDB15132) | ||
YC3.12 Yellow cameleon | 1,500 | Low-affinity Ca2+ indicator based on calmodulin and FRET by CFP-Venus pair. | PMID 15247428 | YC3.12/pCS2 (RDB15133) | |
YC2.60 Yellow cameleon | 40 | 5.6 | Ca2+ indicator based on calmodulin and FRET by CFP-Venus pair. | PMID 15247428 | YC2.60/pRSETB (RDB15134) |
YC3.60 Yellow cameleon | 250 | 5.6 | Low-affinity Ca2+ indicator based on calmodulin and FRET by CFP-Venus pair (ie. HeLa cells and hippocampal brain slice of transgenic mouse). | PMID 15247428 | YC3.60/pcDNA3 (15135) YC3.60/pcDNA3 (15136) YC3.60pm/pRSETB (15137) |
YC4.60 Yellow cameleon | 58 | 3.6 | Low-affinity Ca2+ indicator based on calmodulin and FRET by CFP-Venus pair. | PMID 15247428 | YC4.60/ pRSETB (RDB15138) |
Pericam
probe name | Ca2+affinity (Kd, nM) | dynamic range (Fmax/Fmin) | features&application | refference | plasmid clone (cat. num) |
Flash-pericam | 700 | Designed to work as a single wavelength indicator of intracellular Ca2+. Better at 28-30oC than 37oC. (HeLa cells) | PMID 11248055 | Flash pericam/pcDNA3 (RDB15139) | |
Ratiometric-pericam | 1,700 | 10 | Heat stable version. Work at 37oC. (HeLa cells) | PMID 11248055 | Ratiometric pericam/pcDNA3 (RDB15143) Ratiometric pericam-mt/pcDNA3 (RDB15144) Ratiometric pericam-nu/pcDNA3 (RDB15145) |
Inverse pericam | 200 | Becoming dimmed with Ca2+. (HeLa cells) | PMID 11248055 | Inverse pericam/pcDNA3 (RDB15140) |
G-CaMP and R-CaMP clones
Related Articles
- Arizono, M., Bannai, H., Nakamura, K., Niwa, F., Enomoto, M., Matsu-ura, T., Miyamoto, A., Sherwood, M.W., Nakamura, T., Mikoshiba, K. Receptor-Selective Diffusion Barrier Enhances Sensitivity of Astrocytic Processes to Metabotropic Glutamate Receptor Stimulation. Science Signaling, 2012. doi: 10.1126/scisignal.2002498
- Press Release (2012, in Japanese)
- Press Release (2008, in Japanese)
Yellow Cameleon clones (Dr. Atsushi Miyawaki, RIKEN BSI)
Related Articles
- Press Release (2016, in Japanese)
- Press Release (2016, in Japanese)
- Press Release (2015, in Japanese)
Pericam clones (Dr. Atsushi Miyawaki, RIKEN BSI)
Related Articles
(GRP0029e 2012.04.06 T.M. )
2024.06.10