Abstract
The Integrator Complex (INT) is a large multi-subunit protein complex, containing at least 14 subunits and a host of associated factors. These protein components have been established through pulldowns of overexpressed epitope tagged subunits or by using antibodies raised against specific subunits. Here, we utilize CRISPR/Cas9 gene editing technology to introduce N-terminal FLAG epitope tags into the endogenous genes that encode Integrator subunit 4 and 11 within HEK293T cells. We provide specific details regarding design, approaches for facile screening, and our observed frequency of successful recombination. Finally, using silver staining, Western blotting and LC-MS/MS we compare the components of INT of purifications from CRISPR derived lines to 293T cells overexpressing FLAG-INTS11 to define a highly resolved constituency of mammalian INT.
Original language | English (US) |
---|---|
Pages (from-to) | 101-108 |
Number of pages | 8 |
Journal | Protein Expression and Purification |
Volume | 128 |
DOIs | |
State | Published - Dec 1 2016 |
Keywords
- CRISPR-mediated purification
- Integrator complex
- Mass spectrometry
ASJC Scopus subject areas
- Biotechnology