The ALKBH1 Knockout HAP1 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population in the HAP1 human near-haploid background, designed for gene disruption studies of ALKBH1. This polyclonal pool offers a genetically diverse loss-of-function model suited for experiments where clonal uniformity is not required.
HAP1 cells are derived from the KBM-7 chronic myeloid leukemia cell line and exhibit a near-haploid karyotype with male origin, enabling straightforward genetic manipulation and loss-of-function analysis. Their stable growth and suitability for high-throughput screening make them a preferred platform for functional genomics and cancer research.
ALKBH1 demethylates N6-methyladenine in DNA and N1-methyladenine in tRNA, thereby regulating gene expression and translation. Its activity is controlled by upstream regulators HIF-1??, Oct4, Sox2, and Nanog, while it physically interacts with transcription machinery components TFIID and RNA polymerase II. Demethylation by ALKBH1 modulates transcription of pluripotency genes NANOG, OCT4, and SOX2, and influences mitochondrial tRNA modification, linking HIF-1?? hypoxia signaling and stem cell self-renewal. Key pathway members include METTL3, METTL14, FTO, TET1, DNMT1, TRMT6, and YTHDF1.
In HAP1 cells, ALKBH1 knockout provides a clean system to examine DNA/RNA demethylation dynamics. The haploid state ensures that gene disruption phenotypes are directly observable, making the model ideal for screens to identify novel epigenetic modifiers. Researchers can couple this model with LC-MS/MS for global m6A quantitation, ChIP-qPCR for site-specific m6A analysis, and RNA-seq to interrogate transcriptional changes.
Research applications include functional characterization of DNA and RNA demethylation pathways, stem cell pluripotency and differentiation studies, and neurodevelopmental disease modeling. The knockout cells are compatible with Western blotting, RT-qPCR, and embryoid body differentiation assays. Haploid genetic screens in this model can uncover epigenetic regulators and synthetic interactions. For technical support, contact Ascent Research.
