Project description:We performed a genome-scale screen for suppressors of interferon stimulated gene (ISG) expression in human haploid cells (HAP1). DEAD-box helicase 6 (DDX6) was a significant hit. In order to validate DDX6 as a regulator of ISG expression, we created knockouts of DDX6 in HAP1 cells using CRISPR-Cas9 and performed RNA-seq on coding RNA from DDX6 KO and WT cells. This data was used to determine if ISGs were upregulated in DDX6 KO HAP1 cells.
Project description:We performed a genome-scale screen for suppressors of interferon stimulated gene (ISG) expression in human haploid cells (HAP1). Ubiquitin specific peptidase 14 (USP14) was a significant hit. In order to validate USP14 as a regulator of ISG expression, we created knockouts of USP14 in HAP1 cells using CRISPR-Cas9 and performed RNA-seq on coding RNA from USP14 KO and WT cells. This data was used to determine if ISGs were upregulated in USP14 KO HAP1 cells.
Project description:Sequencing was performed to assess the ability of Nanopore direct cDNA and native RNA sequencing to characterise human transcriptomes. Total RNA was extracted from either HAP1 or HEK293 cells, and the polyA+ fraction isolated using oligodT dynabeads. Libraries were prepared using Oxford Nanopore Technologies (ONT) kits according to manufacturers instructions. Samples were then sequenced on ONT R9.4 flow cells to generate fast5 raw reads in the ONT MinKNOW software. Fast5 reads were then base-called using the ONT Albacore software to generate Fastq reads.
Project description:This dataset contains ChIP-seq data of H3K4me3 and Pol III in single cell-derived control and CRISPR/Cas9 induced tRNA gene deletion clones in human cancer cell lines HAP1 and HepG2. In this study, we looked into functional Cas9-induced on-target genomic alteration in our tRNA gene deletion clones, HAP1 t72 and HepG2 t15.
Project description:This dataset contains ChIP-seq data profiling genomic binding of H3K27ac and H3K4me3 in single cell-derived control, as well as CRISPR/Cas9 induced tRNA gene deletion clones and intergenic region deletion clones in human cancer cell lines HAP1. In this study, we found a large genomic deletion of 10q23 in Cas9 modified clones and further investigate the effect of H3K27ac binding.
Project description:Chromosome-centric Human Proteomic Project (C-HPP) aims at identifying and characterizing protein products encoded from all protein-coding genes of human chromosomes. As evident in the recent nature papers, it is possible that those missing proteins may be low abundant in many cell types or expressed only in a few cell types. In order to identify missing proteins, we focused on extensively unexplored cell lines(HAP1, KBM-7).
Project description:Epigenetic dysregulation is a major cancer hallmark. Notably, deleterious mutations in genes encoding subunits of SWI/SNF (SWItch Sucrose Non-Fermentable), a major chromatin remodeling complex, occur in approximately 20% of human solid tumors. SWI/SNF mutations have been linked to poor patient outcome and no targeted therapy is currently available to treat patients with SWI/SNF-deficient tumors. SWI/SNF is a modular complex composed of 12-15 subunits encoded by 29 genes, which exist in three forms: canonical BRG1/BRM associated factor (cBAF), polybromo-associated BAF (PBAF) and non-canonical (ncBAF/GBAF), which have variable compositions, targets and effects on chromatin remodeling. Each complex includes core subunits (SMARCC1, SMARCC2, and SMARCD1-3) and one of the two mutually exclusive ATPase subunits (SMARCA2 or SMARCA4). Multiple variant subunits then define each complex’s specificity: ARID1A/B and DPF1-3 for cBAF; ARID2, PBRM1, BRD7 and PHF10 for PBAF; GLTSCR1/1L and BRD9 for ncBAF2. SWI/SNF orchestrates multiple cellular functions, such as transcription regulation, differentiation, proliferation, DNA repair, and immunogenicity. Still, subunit-specific oncogenic mechanisms or targetable dependencies remain poorly understood. To identify intracellular alterations and genetic vulnerabilities induced by SWI/SNF defects at the complex or subunit level, we molecularly and functionally profiled an isogenic panel of HAP1 cell lines knockout (KO) for chromatin remodeling encoding genes, including seven SWI/SNF subunits mutants (SMARCB1-, SMARCA4-, SMARCA2-, ARID1A-, ARID1B-, ARID2- and PBRM1-KO), and six non-SWI/SNF mutants (CREBBP-, BAP1-, EED-, KMT2C-, KMT2D- and SETD2-KO). 70-80% confluent cells were harvested, and total RNA was extracted using Rneasy Mini Kit (Qiagen, 74104) with DNAse treatment, according to the manufacturer’s instructions. Every RNA sample was quantified with a Qubit Fluorometer and evaluated for quality controls using Agilent 2100 Bioanalyzer Instrument (RRID:SCR_018043). After RNA Integrity Number (RIN) quality control, cDNA libraries were generated using the NEBNext Ultra II RNA Library Prep Kit (NEB #E7775) on Bravo Automated Liquid Handling Platform (RRID:SCR_026137). Subsequent indexed RNA sequencing of cDNA libraries with paired-end reads was performed according to the standard Illumina protocol using Illumina NovaSeq 6000 S2 Sequencing System (RRID:SCR_016387), with a target of 100Gb per sample.