Defining Essential Enhancer for Pluripotent stem cells using Features Oriented CRISPR-Cas9 Screen (4C-Seq). Defining Essential Enhancer for Pluripotent stem cells using Features Oriented CRISPR-Cas9 Screen (4C-Seq)

Cis Regulatory Elements (CREs) regulate the expression of the genes in their genomic neighborhoods and influence cellular processes such as cell-fate maintenance and differentiation. To date, there remain major gaps in the functional characterization of CREs and the identification of its target genes in the cellular native environment. In this study, we performed a Features Oriented CRISPR Utilized Systematic (FOCUS) screen of Oct4-bound CREs using CRISPR/Cas9 to identify functional CREs important for pluripotency maintenance in mouse ES cells. Overall design: 4C-seq of 5 CREs in mESCs and MEF