rAAV-SFFV-DIO-optoA2AR-P2A-mCherry-WPRE-pA

Promoter Details

SFFV, spleen focus-forming virus promoter, 408 bp.

Functional Gene Details

optoA2AR, the excitation light wavelength is 473nm, and the cAMP and p-MAPK signals increase after light stimulation.

Fluorescent Tag

mCherry

Fluorescent Protein Details

mCherry: red fluorescent protein, excitation wavelength 587nm, emission wavelength 610nm.

Application

Optogenetics-mediated neuronal biochemical signal modulation, Biochemical Modulation, rAAV viral vectors are used to express light-sensitive biochemical regulatory proteins in neurons, such as light-sensitive G protein-coupled receptors (Opto-XR), light-sensitive adenylate cyclases (such as bPAC), photosensitive phosphatase, etc., which can specifically regulate the levels of second messengers (such as cAMP, IP3) and downstream signal transduction pathways in neurons, and explore the effects of light-controlled biochemical signals on neuronal function, synaptic plasticity and animal behavior.

Regulatory Element Details

DIO: Double-floxed inverse Orientation, is an element that cooperates with Cre recombinase to control the expression of the target gene. If there is no Cre recombinase, the target gene will not be expressed, but in the presence of Cre, the target gene can be expressed normally. 2A: The 2A sequence is a short peptide sequence. When the ribosome translates it, it will automatically jump away and continue to translate the downstream reading frame, thereby translating the same reading frame into two independent proteins. Used in non-fusion expressions. Commonly used 2A sequences include T2A and P2A.

Notes

1. Short-term storage at 4°C; long-term storage at -80°C

2. It can be stored at -80°C for more than 6 months. Each time it is frozen and thawed, the titer will be reduced by 10%, and repeated freezing and thawing should be avoided; if the virus is stored for more than 6 months, it is recommended to re-measure the virus titer before use

3. According to the experimental needs, the virus can be appropriately diluted and divided into the volume required for each experiment.