Sfgfp Fragment Assembly

Sfgfp Fragment Assembly is a protein-fragment complementation technique that reconstructs superfolder green fluorescent protein (sfGFP) from separate, nonfluorescent pieces, enabling researchers to visualize molecular events in living cells. Typically, the GFP1-10 fragment is paired with the short GFP11 peptide; when the fragments are brought together by linked proteins or compatible molecular interactions, they assemble into the GFP beta-barrel and restore the chromophore’s fluorescent environment. This genetically encoded reporter supports studies of protein localization, interactions, trafficking, and compartment-specific activity in biology. Its robust folding and signal generation make sfGFP fragment assembly useful for monitoring dynamic processes that are difficult to capture with conventional fluorescent protein fusions.

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JoVE Core - Biology

Habitat Fragmentation

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2020

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition. Perforation and dissection often occur during the initial stages of...

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JoVE Journal - Biology
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Electroeluting DNA Fragments

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Cited by 8 •

2010

This procedure allows the purification of DNA fragments with high yield.

Research

JoVE Journal - Biology
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Assembly, Loading, and Alignment of an Analytical Ultracentrifuge Sample Cell

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Cited by 21 •

2009

The analytical ultracentrifuge (AUC) sample cell holds sample and reference buffer and during experiments and is exposed to high vacuum and rotor speeds up to 60,000 rpm. This video will demonstrate the rigorous attention to detail necessary for assembly, loading and alignment of this very important component of an AUC experiment.

A Method for Studying the Temperature Dependence of Dynamic Fracture and Fragmentation

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Cited by 1 •

2015

Fracture and fragmentation are late stage phenomena in dynamic loading scenarios and are typically studied using explosives. We present a technique for driving expansion using a gas gun which uniquely enables control of both loading rate and sample temperature.

Microfluidic Capillary Electrophoresis for Fragment Sizing of PCR Products: A Microchip-Based Electrophoretic Separation Technique to Separate DNA Fragments Based on Size

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2025

This video describes the microfluidic capillary electrophoresis technique to separate PCR amplicons based on their size. This technique helps in fragment sizing using fluorescent dyes and standard molecular size markers.

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