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Related Concept Videos

Reaction Mechanisms03:06

Reaction Mechanisms

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Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
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Cellular processes such as building and breaking down complex molecules occur through stepwise chemical reactions. Some of these chemical reactions are spontaneous and release energy, whereas others require energy to proceed. Cells often couple the energy-releasing reaction with the energy-requiring one to carry out important cell functions. 
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The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
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Support reactions in three dimensions help maintain the stability and equilibrium of various structures and systems. These reactions prevent the system from translating and rotating, ensuring the design can withstand external forces and perform its intended function efficiently and safely. Some of the supports providing support reactions in three dimensions are discussed below:
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A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
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SBcoyote: An extensible Python-based reaction editor and viewer.

Jin Xu1, Gary Geng2, Nhan D Nguyen3

  • 1Department of Bioengineering, University of Washington, Seattle 98195, WA, USA.

Bio Systems
|August 18, 2023
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Summary
This summary is machine-generated.

SBcoyote is an open-source biochemical reaction viewer and editor. Its Python plugin API allows for extensive customization and new functionality, enhancing biochemical network visualization and editing.

Keywords:
Computational modelingSoftwareSystems biologyVisualization

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Area of Science:

  • Systems Biology
  • Computational Biology
  • Biochemistry

Background:

  • Biochemical reaction visualization and editing tools are essential for systems biology research.
  • Existing tools may lack flexibility or extensibility for complex network analysis.

Purpose of the Study:

  • To introduce SBcoyote, an open-source, cross-platform biochemical reaction viewer and editor.
  • To highlight SBcoyote's extensive Python plugin API for enhanced functionality and customization.

Main Methods:

  • SBcoyote is developed in Python utilizing wxPython for its graphical user interface (GUI) and drawing canvas.
  • The software supports visualization and editing of compartments, species, and reactions with extensive stylization options.
  • A key feature is the Python plugin API, enabling third-party developers to extend functionality.

Main Results:

  • SBcoyote provides robust visualization and editing capabilities for biochemical networks.
  • The tool supports features like alias nodes, node alignment, network zooming, and an interactive bird-eye view.
  • Import/export SBML plugins are included, supporting SBML level 3 layout and render standards for interoperability.

Conclusions:

  • SBcoyote offers a flexible and extensible platform for biochemical network analysis.
  • The plugin architecture, particularly the SBML level 3 support, facilitates integration with other software.
  • The open-source nature and community-driven plugin repository promote collaborative development and widespread adoption.