A new strategy for gene targeting and functional proteomics using the DT40 cell line

作者：Orlowska Kinga P; Klosowska Kamila; Szczesny Roman J; Cysewski Dominik; Krawczyk Pawel S; Dziembowski Andrzej^*

来源：Nucleic Acids Research, 2013, 41(17): e167.

DOI：10.1093/nar/gkt650

DT40 cells derived from chicken B lymphocytes exhibit exceptionally high homologous recombination rates. Therefore, they can be used as a convenient tool and model for gene targeting experiments. However, lack of efficient cloning strategies, protein purification protocols and a well annotated protein database limits the utility of these cells for proteomic studies. Here we describe a fast and inexpensive experimental pipeline for protein localization, quantification and mass spectrometry-based interaction studies using DT40 cells. Our newly designed set of pQuant vectors and a sequence-and ligation-independent cloning (SLIC) strategy allow for simple and efficient generation of gene targeting constructs, facilitating homologous-recombination-based protein tagging on a multi-gene scale. We also report proof of principle results using the key proteins involved in RNA decay, namely EXOSC8, EXOSC9, CNOT7 and UPF1.

• 出版日期2013-9