Dna Imaging
Dna Imaging - Related Videos
07:52
DNA Electroporation, Isolation and Imaging of Myofibers
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Cited by 29 •
2015
This protocol utilizes electroporation to introduce and express fluorescently labeled proteins in mouse muscle fibers. Following recovery after electroporation, fibers are isolated. Individual fibers are then imaged using high resolution confocal microscopy to visualize muscle structure.
10:47
High-Throughput Image-Based Quantification of Mitochondrial DNA Synthesis and Distribution
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2023
A procedure for studying the dynamics of mitochondrial DNA (mtDNA) metabolism in cells using a multi-well plate format and automated immunofluorescence imaging to detect and quantify mtDNA synthesis and distribution is described. This can be further used to investigate the effects of various inhibitors, cellular stresses, and gene silencing on mtDNA metabolism.
07:05
Single-Molecule Imaging of EWS-FLI1 Condensates Assembling on DNA
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Cited by 1 •
2021
Here, we describe the use of the single-molecule imaging method, DNA Curtains, to study the biophysical mechanism of EWS-FLI1 condensates assembling on DNA.
10:24
Two- and Three-Dimensional Live Cell Imaging of DNA Damage Response Proteins
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Cited by 4 •
2012
This protocol describes a method for visualizing a DNA double-strand break signaling protein activated in response to DNA damage as well as its localization during mitosis.
05:37
Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
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2025
This protocol outlines a fluorescence microscopy-based single-molecule DNA replication assay, enabling real-time visualization of interactions between DNA polymerases and obstacles such as G-quadruplex structures.
FAQs
These labels provide different ways to associate a detectable signal with genetic material. Fluorescent dyes can mark DNA broadly, whereas sequence-specific probes are designed to recognize selected sequences. Engineered binding proteins attach to DNA through programmed molecular interactions. The choice determines whether imaging emphasizes overall DNA distribution, a defined genetic region, or a selected binding event.
Fluorescence microscopy detects light emitted from labels attached to DNA and converts that signal into images that can be analyzed for location and organization. In fixed cells, the measurements capture a preserved cellular state. In living cells, repeated observations can reveal changes over time, helping connect DNA positioning or activity with dynamic cellular processes.
Label specificity determines which DNA features appear in the measurement. Broad labeling can show the general distribution of genetic material, while sequence-specific probes or engineered binding proteins can distinguish selected regions. This distinction matters when researchers need to relate chromosome architecture to particular sequences, gene activity, replication, repair, or genome-editing outcomes.
Spatial information shows where DNA or a labeled sequence is positioned, while temporal information reveals how that position or signal changes. Together, these dimensions help researchers study genome organization alongside processes such as replication, repair, and gene activity. The combined view links molecular events with their timing and location inside cells.
The choice depends on whether the goal is to examine a preserved cellular arrangement or observe genetic material as cellular processes proceed. Fixed-cell imaging supports measurements of a defined state, such as chromosome architecture. Living-cell imaging is suited to tracking changes through time, including signals associated with activity, replication, repair, or editing.
In bioengineering, measurements from DNA imaging can evaluate chromosome organization, gene activity, replication, repair, and genome-editing outcomes. These observations help connect engineered changes in genetic information with cellular behavior. The resulting knowledge supports diagnostic tool development, synthetic biology systems, and therapies that require controlled and accurately assessed genetic functions.