AAV with hRPE(1.5) promoter driven mCitrine

This AAV expresses mCitrine driven by a retina hRPE(1.5) promoter.

The RPE65 gene encodes a protein of the retinal pigment epithelium (RPE) with a key role in the cycling of retinoids. This 1.5Kb promoter gives RPE-specific expression, but the expression level is not as high as that of the shorter, 0.8Kb, promoter. This is probably due to a negative regulatory element(s) present in the 1.5Kb promoter.

mCitrine, like Venus, is derived from YFP, with increased brightness and stability. mCitrine has an Excitation/Emission spectrum of 516nm/529nm which is almost identical to that of EYFP, Venus and Topaz.