
Cryo-electron microscopy (cryo-EM) is a powerful technique that allows for the visualization of biological specimens in their native hydrated state at cryogenic temperatures. By vitrifying samples, cryo-EM preserves molecular structures in near-native conditions, allowing for high-resolution imaging without the need for chemical fixation or staining. Cryo-electron tomography (cryo-ET), a specialized application of cryo-EM, extends this capability into three dimensions and cellular samples. By collecting a series of tilt images of a vitrified sample, cryo-ET allows for the reconstruction of 3D volumes, providing detailed insights into the spatial organization of macromolecules and subcellular structures at the nanometer scale.
Advancements in cryo-EM and cryo-ET have accelerated in recent years, driven by innovations in imaging technology, sample preparation techniques, computational methods and image processing software and hardware. These developments have dramatically increased the resolution of 3D reconstructions at near-atomic resolution, a feat previously achievable only through x-ray crystallography or NMR spectroscopy. At the same time, they've enhanced the usability and applicability of cryo-EM and cryo-ET, enabling a deeper comprehension of cellular processes and disease mechanisms.
With these developments in mind, BMC Methods is opening submissions to this Collection on Cryo-electron microscopy and tomography of biological molecules.
Topics of interest for submission include, but are not limited to:
- Cryo-EM techniques and methodologies
- Cryo-specimen preparation and imaging protocols
- Cryo-EM/ET sample heterogeneity
- Cryo-ET reconstruction and missing wedge correction algorithms
- Continuous conformational variability of biomolecules in cryo-EM and cryo-ET data
- Artificial Intelligence for cryo-EM and cryo-ET data processing
- Software development for cryo-EM and cryo-ET
- Visualization of subcellular structures and macromolecular complexes
- Applications of cryo-EM and cryo-ET in studying cellular processes
- Integration of cryo-EM and cryo-ET with other structural and imaging techniques
- Advances in cryo-FIB-ET for in situ structural biology
- Insights into cellular ultrastructure and dynamics
- Cryo-EM and cryo-ET studies of viral replication, infection mechanisms, and host-pathogen interactions
- Cryo-EM and cryo-ET applications in drug discovery and development
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