AAV with eSYN promoter driven Venus

This AAV expresses Venus driven by a neuron eSYN promoter.

The eSYN is a hybrid promoter consisting of a 0.4Kb CMV enhancer (E) and the 0.45Kb human Synapsin I promoter fragment (hSYN1). eSYN hybrid promoter gives about 2-4 fold higher expression than that of the parental hSYN1 promoter. However, the neuronal specificity of eSYN is slightly decreased, compared to that of the parental hSYN1 promoter.

Like mCitrine and EYFP, Venus was developed in an effort to get better variants of YFP in terms of brightness and photo-stability. Venus has an Excitation/Emission spectrum of 515nm/529nm which is almost identical to that of EYFP and mCitrine.