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Related Concept Videos

Molecular Models02:00

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Physical models representing molecular architectures of chemical compounds play essential roles in understanding chemistry. The use of molecular models makes it easier to visualize the structures and shapes of atoms and molecules.
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Molecules have characteristic shapes that are crucial for their function. The arrangement of various electron groups around the central atom dictates their molecular geometry. Electron pairs in the valence shell of a central atom will adopt an arrangement that minimizes repulsions between the electron pairs by maximizing the distance between them. The valence electrons form either bonding pairs, located primarily between bonded atoms, or lone pairs.
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Curve Sketching and Derivatives01:22

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Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
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Related Experiment Video

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Electron Cryotomography of Bacterial Cells
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SketchBio: a scientist's 3D interface for molecular modeling and animation.

Shawn M Waldon1, Peter M Thompson, Patrick J Hahn

  • 1University of North Carolina at Chapel Hill, 27599 Chapel Hill, NC, USA. swaldon@cs.unc.edu.

BMC Bioinformatics
|November 1, 2014
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Summary

Scientists can now directly build molecular models and animations using SketchBio, a new 3D software. This tool streamlines the scientific discovery process by reducing reliance on external programmers and minimizing miscommunication.

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Area of Science:

  • Biochemistry
  • Structural Biology
  • Computational Biology

Background:

  • 3D modeling software presents significant learning and usage challenges for scientists.
  • Reliance on programmers or animators for molecular models and animations slows research and introduces miscommunication.
  • A collaborative effort led to the development of a tool for direct model and animation construction.

Purpose of the Study:

  • To develop a user-friendly tool for scientists to directly create 3D molecular models and animations.
  • To overcome the limitations of existing 3D software in scientific visualization.
  • To enhance collaboration and reduce miscommunication in molecular modeling.

Main Methods:

  • Development of SketchBio, a novel 3D molecular modeling and animation tool.
  • Incorporation of state-of-the-art bimanual interaction and drop shadows for efficient model construction.
  • Implementation of three key features: crystal-by-example, pose-mode physics, and spring-based layout.

Main Results:

  • SketchBio enables rapid construction of molecular structures and animations.
  • Novel features accelerate common molecular modeling operations.
  • Iterative design processes were employed, leading to effective solutions for specific challenges.

Conclusions:

  • SketchBio successfully met its design goals through innovative features and advanced techniques.
  • The developed features and design principles can enhance existing and future molecular modeling tools.
  • Direct construction capabilities empower scientists, improving efficiency and accuracy in molecular visualization.