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Related Concept Videos

Time-Domain Interpretation of PD Control01:07

Time-Domain Interpretation of PD Control

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Proportional-Derivative (PD) control is a widely used control method in various engineering systems to enhance stability and performance. In a system with only proportional control, common issues include high maximum overshoot and oscillation, observed in both the error signal and its rate of change. This behavior can be divided into three distinct phases: initial overshoot, subsequent undershoot, and gradual stabilization.
Consider the example of control of motor torque. Initially, a positive...
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pV-Diagrams01:18

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The pV diagram, which is a graph of pressure versus volume of the gas under study, is helpful in describing certain aspects of the substance. When the substance behaves like an ideal gas, the ideal gas equation describes the relationship between its pressure and volume. On a pV diagram, it is common to plot an isotherm, which is a curve showing p as a function of V with the number of molecules and the temperature fixed. Then, for an ideal gas, the product of the pressure of the gas and its...
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Related Experiment Video

Updated: Jun 21, 2025

Applications of Spatio-temporal Mapping and Particle Analysis Techniques to Quantify Intracellular Ca2+ Signaling In Situ
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Understanding PTM Cross Talk Through a Visualization Tool, PTMViz.

Kevin Chappell1, Stephanie D Byrum2,3,4

  • 1Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.

Methods in Molecular Biology (Clifton, N.J.)
|July 12, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces PTMViz, a new tool for analyzing proteoforms and posttranslational modifications (PTMs) from mass spectrometry data. PTMViz offers differential abundance analysis and visualization to better understand biological complexity.

Keywords:
Cross talkHistonesPosttranslational modificationProteoform mapping

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Area of Science:

  • Proteomics
  • Bioinformatics
  • Molecular Biology

Background:

  • Advancements in sequencing technologies reveal biological complexity through mechanisms like allelic variations, alternative splicing, microRNA degradation, and posttranslational modifications (PTMs).
  • Analyzing proteoforms, which are distinct forms of a protein, is crucial for understanding cellular functions and disease states.
  • Mass spectrometry is a key technology for identifying and quantifying proteoforms and their modifications.

Purpose of the Study:

  • To present PTMViz, an interactive platform for the analysis and visualization of proteoforms and PTMs.
  • To provide a method for preparing mass spectrometry data for PTMViz analysis.
  • To enable differential abundance analysis of proteins and PTMs.

Main Methods:

  • Development and description of the PTMViz software tool.
  • Detailed protocol for formatting mass spectrometry database search results for PTMViz.
  • Guidance on setting up experimental conditions for differential abundance analysis within PTMViz.

Main Results:

  • PTMViz facilitates the interactive analysis of proteoforms and PTMs.
  • The platform enables differential abundance analysis, highlighting changes in protein and PTM levels.
  • Visualization tools within PTMViz aid in interpreting complex proteomic data.

Conclusions:

  • PTMViz is a valuable, freely available resource for researchers studying proteoforms and PTMs.
  • The method described simplifies the analysis pipeline from mass spectrometry data to actionable insights.
  • This tool enhances the understanding of biological complexity through detailed proteomic analysis.