Abstract
ISL1 encodes a member of the LIM/homeodomain family of transcription factors. This encoded protein plays central roles in the development of motor neuron, pancreas, and secondary heart field. Here we generated heterozygous fluorescent reporters of the ISL1 gene in human induced pluripotent stem cells (hiPSCs). CRISPR/Cas9 genome editing technology was employed to knock-in 2A-tdTomato and EF1 alpha promoter-driven Bleomycin resistance gene to the translational ISL1 C-terminal region. The resulting ISL1-TEZ lines showed tdTomato fluorescence upon motor neuron differentiation. These reporter iPSC lines provide opportunity for monitoring and purifying these related cell lineages.
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