pDsRed-Express2-C1 encodes DsRed-Express2, a variant of Discosoma sp. red fluorescent protein. It can be used to construct fusions to the C-terminus of DsRed-Express2 which retain the fluorescent properties of the native DsRed-Express2 protein. Its expression can be monitored by flow cytometry, and its intracellular localization can be determined by fluorescence microscopy. pDsRed-Express2-C1 can also be used as a cotransfection marker; the unmodified vector will express DsRed-Express2.
Robust expression of DsRed-Express and DsRed-Express2 in mouse bone marrow hematopoietic stem and progenitor cells. Mononuclear bone marrow cells were transduced with retroviral vectors encoding DsRed-Express (Panel A), DsRed-Express2 (Panel B), or EGFP (Panel C), and fluorescent cells were sorted 87 hr later. Red and green fluorescence signals were detected using the PE and FITC filter sets, respectively. The lines represent gates defined by analyzing untransduced cells.
Schematic for fluorescent fusion protein vectors. Panel A. N-terminal fluorescent protein (FP) vector. Panel B. C-terminal fluorescent protein vector.
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