Probing Structural Perturbation of Biomolecules by Extracting Cryo-EM Data Heterogeneity
Abstract
Single-particle cryogenic electron microscopy (cryo-EM) has become an indispensable tool to probe high-resolution structural detail of biomolecules. It enables direct visualization of the biomolecules and opens a possibility for averaging molecular images to reconstruct a three-dimensional Coulomb potential density map. Newly developed algorithms for data analysis allow for the extraction of structural heterogeneity from a massive and low signal-to-noise-ratio (SNR) cryo-EM dataset, expanding our understanding of multiple conformational states, or further implications in dynamics, of the target biomolecule. This review provides an overview that briefly describes the workflow of single-particle cryo-EM, including imaging and data processing, and new methods developed for analyzing the data heterogeneity to understand the structural variability of biomolecules.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 24, 2022
- Source ID
- 10.3390/biom12050628
Entities
People
- Kira DeVore
- Po-Lin Chiu
Organizations
- Army Research Office