An Endogenously Tagged Fluorescent Fusion Protein Library in Mouse Embryonic Stem Cells
Embryonic stem cells (ESCs), with their dual capacity to self-renew and differentiate, are commonly used to study differentiation, epigenetic regulation, lineage choices, and more. Using non-directed retroviral integration of a YFP/Cherry exon into mouse ESCs, we generated a library of over 200 endo...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Elsevier,
2018-06-26T13:48:09Z.
|
| Subjects: | |
| Online Access: | Get fulltext |
| Summary: | Embryonic stem cells (ESCs), with their dual capacity to self-renew and differentiate, are commonly used to study differentiation, epigenetic regulation, lineage choices, and more. Using non-directed retroviral integration of a YFP/Cherry exon into mouse ESCs, we generated a library of over 200 endogenously tagged fluorescent fusion proteins and present several proof-of-concept applications of this library. We show the utility of this library to track proteins in living cells; screen for pluripotency-related factors; identify heterogeneously expressing proteins; measure the dynamics of endogenously labeled proteins; track proteins recruited to sites of DNA damage; pull down tagged fluorescent fusion proteins using anti-Cherry antibodies; and test for interaction partners. Thus, this library can be used in a variety of different directions, either exploiting the fluorescent tag for imaging-based techniques or utilizing the fluorescent fusion protein for biochemical pull-down assays, including immunoprecipitation, co-immunoprecipitation, chromatin immunoprecipitation, and more. Keywords: embryonic stem cells; imaging; live imaging; fluorescence; differentiation; pluripotency; GFP; microscopy; DNA damage; protein dynamics National Institutes of Health (U.S.) (Grant HD045022) National Institutes of Health (U.S.) (Grant R37-CA084198) National Institutes of Health (U.S.) (Grant R01NS088538-01) |
|---|