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Related Concept Videos

Fischer Projections02:18

Fischer Projections

Learning to draw Fischer projections of molecules and understanding their relevance plays a crucial role in the visual depiction of organic molecules. A Fischer projection is a two-dimensional projection on a planar surface to simplify the three-dimensional wedge–dash representation of molecules. This is especially helpful in the case of molecules with multiple chiral centers that can be difficult to draw. Here, all the bonds of interest are represented as horizontal or vertical lines. While...
Molecular Models02:00

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Newman Projections02:06

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The organic molecules rotate across the single bonds leading to numerous temporary three-dimensional structures of varying energy known as conformers.
Three-Dimensional Microscopy in Microbiology01:28

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Atomic Force Microscopy01:08

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High Precision FRET at Single-molecule Level for Biomolecule Structure Determination
11:24

High Precision FRET at Single-molecule Level for Biomolecule Structure Determination

Published on: May 13, 2017

Three-dimensional molecular modeling with single molecule FRET.

Axel T Brunger1, Pavel Strop, Marija Vrljic

  • 1The Howard Hughes Medical Institute, Stanford University, CA 94305, USA. brunger@stanford.edu

Journal of Structural Biology
|September 15, 2010
PubMed
Summary
This summary is machine-generated.

Single molecule fluorescence resonance energy transfer (FRET) experiments map macromolecular structures. This review covers methods for 3D modeling using FRET, advancing macromolecular complex studies.

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Area of Science:

  • Biophysics
  • Structural Biology
  • Biochemistry

Background:

  • Single molecule fluorescence energy transfer (FRET) is a powerful technique for studying macromolecular conformation and folding.
  • FRET relies on fluorescent dyes introduced at specific sites to probe molecular dynamics.
  • Multiple FRET experiments with varied labeling sites can map complex conformational changes and molecular interactions.

Purpose of the Study:

  • To review experimental and computational methods for 3D modeling using single molecule FRET.
  • To highlight recent advancements in applying FRET to complex macromolecular systems.
  • To emphasize the importance of accurate distance derivation and error assessment in FRET analysis.

Main Methods:

  • Utilizing FRET efficiency to determine distances between fluorophores.
  • Employing triangulation techniques to pinpoint fluorophore positions.
  • Integrating FRET-derived distances with known macromolecular structures for 3D model construction.

Main Results:

  • Successful determination of three-dimensional models for macromolecular systems.
  • Advancements in pushing the resolution and applicability of FRET-based modeling.
  • Identification of challenges in accurately deriving distances and managing errors in FRET measurements.

Conclusions:

  • Single molecule FRET is a versatile tool for structural biology, enabling detailed 3D modeling.
  • Careful consideration of distance-FRET efficiency relationships and error analysis is crucial for reliable modeling.
  • Ongoing progress expands the utility of FRET for investigating intricate macromolecular complexes.