Excitatory Optogenetics
AAV2/9-hEF1a-DIO-oChIEF-EGFP-WPRE-pA
AAV2/9
oChIEF
hEF1a
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Delivery Information
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Product Details
Promoter Details
Ef1α, a strong promoter, human targeted elongation factor 1α (EF1A) gene, can be stably expressed in most types of cells, especially cells where the CMV promoter is silenced, such as stem cells, 1178bp.
Functional Gene Details
OChIEF: ChIEF is a fusion of two proteins, ChR1 and ChR2, with Ile mutated to Val at position 170. The characteristic of this protein is that under long-term illumination, the ratio of plateau current to peak current is large, which means that the channel is less inactivated under illumination and is suitable for long-term stimulation. The mutation of Ile accelerates the closing speed of the channel, making ChIEF suitable for high-frequency stimulation. Karl's laboratory has compared the high-frequency stimulation of ChIEF and hChR2(E123A) in pv (small serum protein) neurons, and the effects are equivalent. OChIEF is a codon-optimized version. The excitation light wavelength is 473nm, suitable for high-frequency light activation.
Fluorescent Tag
green fluorescent green
Virus Type
Adeno-associated virus vector Adeno-associated Virus
Expression and Regulation Mode
constitutive expression
