αMHC-GCaMP8 Strain Information Sheet
Common Name: αMHC-GCaMP8
CHROMusTM designation and lines available: R24:B4
Jackson Stock number: NA
Development: The green fluorescent calcium indicator GCaMP8 was inserted under control of the αMHC minimal promoter (Addgene 55594). The resulting transgene was injected into the male pronucleus of fertilized oocytes which were then implanted into pseudo pregnant females. Resulting offspring were screened for the presence of the transgene (founders). Colonies were established from each founder and tested for expression.
|# pups born||# founders||# expressers|
Description: The genetically encoded calcium indicator GCaMP8 is expressed under control of the αMHC promoter, directing expression to cardiomyocytes in the heart. GCaMP8 responds to calcium levels in the cell. When calcium increases, a conformation change occurs resulting in an increase in fluorescence. When calcium decreases, fluorescence decreases. This mouse is useful for examining calcium signaling in cardiomyocytes.
Video showing GCaMP8 activity in heart, showing an increase in fluorescence with increased calcium during contraction.
|Primer CalmF||AAG GGC GAG GAG CTG TTC A|
|Primer CalmR||CGA TCT GCT CTT CAG TCA GTT GGT|
|Expected size of product:||456bp|
Acknowledgement: Please inform us of any publications resulting from the use of this mouse and use the following statement to acknowledge their development:
“The mouse strain αMHC-GCaMP8 was developed by CHROMusTM; funded by NIH R24HL120847.”