An Endogenously Tagged Fluorescent Fusion Protein Library in Mouse Embryonic Stem Cells

Autor: Arigela Harikumar, Raghu Ram Edupuganti, Matan Sorek, Gajendra Kumar Azad, Styliani Markoulaki, Petra Sehnalová, Soňa Legartová, Eva Bártová, Shlomit Farkash-Amar, Rudolf Jaenisch, Uri Alon, Eran Meshorer
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Stem Cell Reports, Vol 9, Iss 4, Pp 1304-1314 (2017)
Druh dokumentu: article
ISSN: 2213-6711
DOI: 10.1016/j.stemcr.2017.08.022
Popis: 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.
Databáze: Directory of Open Access Journals