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Recent Findings from Ludwig-Maximilians-University Has Provided New Data on Biophysical Research (Tracking image correlation: combining...

July 15, 2014

Recent Findings from Ludwig-Maximilians-University Has Provided New Data on Biophysical Research (Tracking image correlation: combining single-particle tracking and image correlation)

By a News Reporter-Staff News Editor at Life Science Weekly -- Investigators publish new report on Life Science Research. According to news reporting out of Munich, Germany, by NewsRx editors, research stated, "The interactions and coordination of biomolecules are crucial for most cellular functions. The observation of protein interactions in live cells may provide a better understanding of the underlying mechanisms."

Our news journalists obtained a quote from the research from Ludwig-Maximilians-University, "After fluorescent labeling of the interacting partners and live-cell microscopy, the colocalization is generally analyzed by quantitative global methods. Recent studies have addressed questions regarding the individual colocalization of moving biomolecules, usually by using single-particle tracking (SPT) and comparing the fluorescent intensities in both color channels. Here, we introduce a new method that combines SPT and correlation methods to obtain a dynamical 3D colocalization analysis along single trajectories of dual-colored particles. After 3D tracking, the colocalization is computed at each particle's position via the local 3D image cross correlation of the two detection channels. For every particle analyzed, the output consists of the 3D trajectory, the time-resolved 3D colocalization information, and the fluorescence intensity in both channels. In addition, the cross-correlation analysis shows the 3D relative movement of the two fluorescent labels with an accuracy of 30 nm."

According to the news editors, the research concluded: "We apply this method to the tracking of viral fusion events in live cells and demonstrate its capacity to obtain the time-resolved colocalization status of single particles in dense and noisy environments."

For more information on this research see: Tracking image correlation: combining single-particle tracking and image correlation. Biophysical Journal, 2013;104(11):2373-82. (Elsevier -; Biophysical Journal -

Our news journalists report that additional information may be obtained by contacting A. Dupont, Dept. of Chemistry, Center for NanoScience and Center for Integrated Protein Science Munich, Ludwig Maximilians Universitat, Munich, Germany. Additional authors for this research include K. Stirnnagel, D. Lindemann and D.C Lamb (see also Life Science Research).

Keywords for this news article include: Munich, Europe, Germany, Life Science Research.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Life Science Weekly

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