AAV with MBP promoter driven hChR2(C128A)-mCitrine
This AAV expresses hChR2(C128A)-mCitrine driven by an olgiodendricyte MBP promoter.
The myelin basic proteins (MBPs) are a family of polypeptides that are predominantly expressed in the nervous system, where they play a major role in myelination. This 1.3 Kb mouse MBP promoter drives reporter gene expression mainly in oligodendrocytes.
hChR2 is a humanized version of ChR2 for mammalian expression. Wild-type ChR2, as well as a few of its mutations, provides the fastest excitation of the channelrhodopsins offered, and is widely used in in optogenetics techniques in neuroscience. Mutations at C128 (C128A, C128S, C128T) can extend depolarization up to seconds or even minutes; they are sometimes referred to as step-function opsins or SFOs. hChR2(C128A) provides for a 42-second open-state lifetime but has weaker expression in the hippocampal neurons and Pichia pastoris.
Ready-to-use AAV expressing hChR2(C128A)-mCitrine driven by an olgiodendricyte MBP promoter. Available in AAV1, AAV2, AAV5, AAV6, AAV8, AAV9, AAV-DJ and other serotypes.