» Articles » PMID: 27572728

Frealign: An Exploratory Tool for Single-Particle Cryo-EM

Overview
Journal Methods Enzymol
Specialty Biochemistry
Date 2016 Aug 31
PMID 27572728
Citations 95
Authors
Affiliations
Soon will be listed here.
Abstract

Frealign is a software tool designed to process electron microscope images of single molecules and complexes to obtain reconstructions at the highest possible resolution. It provides a number of refinement parameters and options that allow users to tune their refinement to achieve specific goals, such as masking to classify selected regions within a particle, control over the refinement of specific alignment parameters to accommodate various data collection schemes, refinement of pseudosymmetric particles, and generation of initial maps. This chapter provides a general overview of Frealign functions and a more detailed guide to using Frealign in typical scenarios.

Citing Articles

Novel archaeal ribosome dimerization factor facilitating unique 30S-30S dimerization.

Hassan A, Pinkas M, Yaeshima C, Ishino S, Uchiumi T, Ito K Nucleic Acids Res. 2025; 53(2.

PMID: 39797736 PMC: 11724365. DOI: 10.1093/nar/gkae1324.


Maize Streak Virus: Single and Gemini Capsid Architecture.

Bennett A, Hull J, Mietzsch M, Bhattacharya N, Chipman P, McKenna R Viruses. 2025; 16(12.

PMID: 39772173 PMC: 11680415. DOI: 10.3390/v16121861.


The structural and functional analysis of mycobacteria cysteine desulfurase-loaded encapsulin.

Tang Y, Liu Y, Zhang M, Lan W, Ma M, Chen C Commun Biol. 2024; 7(1):1656.

PMID: 39702509 PMC: 11659603. DOI: 10.1038/s42003-024-07299-8.


Cryo-EM unveils kinesin KIF1A's processivity mechanism and the impact of its pathogenic variant P305L.

Benoit M, Rao L, Asenjo A, Gennerich A, Sosa H Nat Commun. 2024; 15(1):5530.

PMID: 38956021 PMC: 11219953. DOI: 10.1038/s41467-024-48720-4.


Endogenous trans-translation structure visualizes the decoding of the first tmRNA alanine codon.

Teran D, Zhang Y, Korostelev A Front Microbiol. 2024; 15:1369760.

PMID: 38500588 PMC: 10944890. DOI: 10.3389/fmicb.2024.1369760.


References
1.
Grigorieff N . Resolution measurement in structures derived from single particles. Acta Crystallogr D Biol Crystallogr. 2000; 56(Pt 10):1270-7. DOI: 10.1107/s0907444900009549. View

2.
Morais M, Kanamaru S, Badasso M, Koti J, Owen B, McMurray C . Bacteriophage phi29 scaffolding protein gp7 before and after prohead assembly. Nat Struct Biol. 2003; 10(7):572-6. DOI: 10.1038/nsb939. View

3.
Mindell J, Grigorieff N . Accurate determination of local defocus and specimen tilt in electron microscopy. J Struct Biol. 2003; 142(3):334-47. DOI: 10.1016/s1047-8477(03)00069-8. View

4.
Rosenthal P, Henderson R . Optimal determination of particle orientation, absolute hand, and contrast loss in single-particle electron cryomicroscopy. J Mol Biol. 2003; 333(4):721-45. DOI: 10.1016/j.jmb.2003.07.013. View

5.
Roseman A . FindEM--a fast, efficient program for automatic selection of particles from electron micrographs. J Struct Biol. 2004; 145(1-2):91-9. DOI: 10.1016/j.jsb.2003.11.007. View