July 21, 2025

Nuclei-Segregated DNA Fiber (NuSeF) Assay Protocol v1

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NuSeF assay reveals differences in DNA replication efficiency between micronuclei and primary nuclei, indicating replication stress mechanisms.

MAIN FINDING: The NuSeF assay successfully highlights the differences in DNA replication within micronuclei compared to primary nuclei.
KEY EVIDENCE: Micronuclei display less efficient DNA replication, and this may be related to chromothripsis mechanisms.
APPROACH: This study employs the Nuclei-Segregated DNA Fiber method to analyze replication stress in micronuclei.
SIGNIFICANCE: Understanding replication mechanisms in micronuclei can shed light on genomic rearrangement processes like chromothripsis.

Chan et al. (2025) studied this question.

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NuSeF assay reveals differences in DNA replication efficiency between micronuclei and primary nuclei, indicating replication stress mechanisms.