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Updated: Jun 12, 2026

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Eliminating the Missing Cone Challenge through Innovative Approaches.

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    Summary
    This summary is machine-generated.

    Suspended drop crystallization overcomes preferred orientation issues in microcrystal electron diffraction (MicroED). This method eliminates the missing cone of data for plate-like crystals, enabling complete molecular structure determination.

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    Area of Science:

    • Structural biology
    • Biophysics
    • Crystallography

    Background:

    • Microcrystal electron diffraction (MicroED) is vital for determining molecular structures from small crystals.
    • Plate-like crystals often exhibit preferred orientation on microscopy grids, leading to a 'missing cone' of data.
    • This orientation limitation restricts the completeness of structural information obtainable via MicroED.

    Approach:

    • Introduced suspended drop crystallization as a novel strategy to address preferred crystal orientation.
    • Demonstrated the efficacy of this method using two distinct plate-like crystal samples: bovine liver catalase and COVID-19 main protease (Mpro).

    Key Points:

    • Suspended drop crystallization effectively eliminates the missing cone of data in MicroED.
    • Successfully determined complete structures from plate-like crystals that previously posed orientation challenges.
    • The method is particularly beneficial for samples that naturally crystallize as thin plates.

    Conclusions:

    • Suspended drop crystallization is an indispensable technique for overcoming preferred orientation in MicroED.
    • This approach significantly enhances the scope and success rate of MicroED structure determination.
    • Enables comprehensive structural analysis for challenging crystal morphologies.