AAV with eSYN promoter driven EYFP

This AAV expresses EYFP 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.

YFP is the longest wavelength-emitting variants of Aequorea GFP. The enhanced version, EYFP, has become one of the brightest and most widely utilized of the fluorescent proteins with an Excitation/Emission spectrum centered around 514nm/527nm. Other fluorescent proteins with similar emission spectrums include Topaz, Venus, Citrine and mCitrine