Inventors:
Susanne Dagmar Pippig - San Francisco CA
Gabor Veres - Palo Alto CA
International Classification:
C12Q 168
US Classification:
435 6, 435 721, 435 723, 435 792, 435 691, 435183, 435325, 435332, 435455, 435456, 5303879, 53038826, 536 231
Abstract:
The present invention concerns a method of identifying genetically modified mammalian cells using a mutated protein-tyrosine kinase receptor (PTKR) as a selectable marker in mammalian cells. Particularly preferred mutated PTKR selective markers are mutated epidermal growth factor receptor (EGFR) family members, and muscle specific tyrosine kinase receptor (MuSK-R) family members. Further a method for the immunoselection of transduced mammalian cells is disclosed comprising retrovirally transducing mammalian cells with a nucleic acid sequence encoding a mutated EGFR, incubating the transduced cells with a marked antibody which recognizes and binds specifically to the mutated PTKR, and identifying the marked transduced cells.