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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.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
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Introduction to Chemical Reactions01:23

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All chemical reactions begin with a reactant, the general term for one or more substances entering the reaction. Sodium and chloride ions, for example, are the reactants in the production of table salt. One or more substances produced by a chemical reaction are called the product. Chemical reactions follow the law of conservation of mass, which means that matter cannot be created nor destroyed in a chemical reaction. The components of the reactants—the number of atoms and the...
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Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
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Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
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Precipitation Reactions

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In a precipitation reaction, aqueous solutions of soluble salts react to give an insoluble ionic compound – the precipitate. The reaction occurs when oppositely charged ions in solution overcome their attraction for water and bind to each other, forming a precipitate that separates out from the solution. Since such reactions involve the exchange of ions between ionic compounds in aqueous solution, they are also referred to as double displacement, double replacement, exchange reactions, or...
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Chemical Reactions01:19

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A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
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A Web Tool for Generating High Quality Machine-readable Biological Pathways
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Enzyme reaction annotation using cloud techniques.

Chuan-Ching Huang1, Chun-Yuan Lin, Cheng-Wen Chang

  • 1Department of Computer Sciences, National Tsing Hua University, Hsinchu 300, Taiwan.

Biomed Research International
|November 14, 2013
PubMed
Summary
This summary is machine-generated.

We developed a novel enzyme reaction prediction (ERP) method using domain architecture to accurately annotate enzyme-catalyzed reactions. This tool enhances understanding of metabolic pathways and aids in applications like drug design.

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Area of Science:

  • Biochemistry
  • Computational Biology
  • Bioinformatics

Background:

  • Enzyme activities are crucial for understanding metabolic pathways and chemical reactions in living systems.
  • Accurate enzyme reaction annotation is vital for applications like drug design and metabolic reconstruction.
  • High-throughput techniques generate vast biological data, posing processing challenges.

Purpose of the Study:

  • To introduce a novel enzyme reaction prediction (ERP) method.
  • To deduce enzyme reactions from protein domain architecture.
  • To enhance annotation rates for single and multiple catalyzed reactions.

Main Methods:

  • Utilized frequency relationships between protein domain architectures and enzyme reactions.
  • Developed the enzyme reaction prediction (ERP) method as a novel computational tool.
  • Designed the tool as a single execution file for cloud platform compatibility.

Main Results:

  • The ERP method successfully deduces enzyme reactions from domain architecture.
  • Enhanced annotation rates were achieved for both single and multiple catalyzed reactions.
  • The tool leverages cloud computing for efficient analysis of large biological datasets.

Conclusions:

  • The ERP method offers a novel approach for enzyme reaction annotation.
  • Accurate enzyme annotation has significant implications for drug design and metabolic engineering.
  • The cloud-based design ensures scalability and accessibility for biological data analysis.