Exploring DNA movement through the application of droplet-based high-efficiency chromatin conformation capture (DropHiChew) and loop velocity.

DropHiChew enables droplet-based single-cell chromatin conformation capture with loop-velocity inference, accurately gauging DNA motion trajectories even at shallow sequencing depth of 50k contacts per cell.

• Why it matters: Single-cell chromatin conformation methods are limited by cost, accessibility, and their ability to capture dynamic genome architecture linked to gene regulation and disease.
• What they did: The authors developed DropHiChew using 10× Genomics single-cell systems and paired it with a loop velocity algorithm that estimates speed and direction of cell development from chromatin movement.
• The result: Validation across HEK293T, spermiogenesis, and embryonic development suggests the integrated approach can quantify dynamic genome organization and cellular states at low sequencing depth.

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