Related Experiment Video

Updated: Jun 24, 2026

Monitoring Actin Disassembly with Time-lapse Microscopy
06:12

Monitoring Actin Disassembly with Time-lapse Microscopy

Published on: November 8, 2006

Double JMY: making actin fast

David W Roadcap, James E Bear

    Nature Cell Biology
    |April 2, 2009
    PubMed

    Insights

    A newly identified protein, JMY, possesses dual nucleation-promoting activities crucial for actin network assembly. This protein shuttles between cellular compartments, significantly impacting cell migration and actin dynamics in motile cells.

    Area of Science:

    • Cell Biology
    • Molecular Biology
    • Biochemistry

    Background:

    • Actin network assembly is essential for cellular functions.
    • Nucleation-promoting factors (NPFs) regulate actin polymerization.
    • The role of specific NPFs in cell motility remains an area of active research.

    Discussion:

    • JMY protein exhibits two distinct nucleation-promoting activities.
    • JMY dynamically shuttles between the nucleus and cytoplasm.
    • This nucleocytoplasmic shuttling influences JMY's function in actin regulation.

    Key Insights:

    • JMY acts as a critical regulator of actin dynamics.
    • The dual nucleation-promoting activities of JMY are novel.
    • JMY's localization dynamics are linked to its functional role.

    Outlook:

    • Further investigation into JMY's precise molecular mechanisms.
    • Exploring JMY's role in various physiological and pathological processes.
    • Potential therapeutic targeting of JMY for controlling cell migration.

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