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Mapping genotypes to chromatin accessibility profiles in single cells [Genotyping GoT-ChA amplicon]

ABSTRACT: Mapping genotypes to chromatin accessibility profiles in single cells [Genotyping GoT-ChA amplicon]

PROVIDER: PRJNA842709 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19418267_1.fastq.gz	Fastqsanger.gz
	SRR19418267_2.fastq.gz	Fastqsanger.gz
	SRR19418268_1.fastq.gz	Fastqsanger.gz
	SRR19418268_2.fastq.gz	Fastqsanger.gz
	SRR19418269_1.fastq.gz	Fastqsanger.gz

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Mapping genotypes to chromatin accessibility profiles in single cells [Genotyping GoT-ChA amplicon]

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Project description:Understanding clonal evolution and cancer development requires experimental approaches for characterizing the consequences of somatic mutations on gene regulation. However, no methods currently exist that efficiently link chromatin accessibility with genotype in single cells. To address this, we developed Genotyping with the Assay for Transposase-Accessible Chromatin (GTAC), enabling accurate mutation detection at multiple amplified loci, coupled with robust chromatin accessibility readout. We applied GTAC to primary acute myeloid leukemia, obtaining high-quality chromatin accessibility profiles and clonal identities for multiple mutations in 88% of cells. We traced chromatin variation throughout clonal evolution, showing the restriction of different clones to distinct differentiation stages. Furthermore, we identified switches in transcription factors motif accessibility associated with a specific combination of driver mutations, which biased transformed progenitors towards a leukemia stem cell-like chromatin state. GTAC is a powerful tool to study clonal heterogeneity across a wide spectrum of pre-malignant and neoplastic conditions.

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