Embryo Lysate
Embryo Lysate - Related Videos
08:33
Cell-Free In Vitro mRNA Translation In Drosophila Lysates
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2026
Here, we provide details on how to prepare lysates and perform in vitro translation using Drosophila embryos.
04:08
Purification of Bacteriophages from Bacterial Lysate
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2026
Source: Pett, N., et al. T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo. J. Vis. Exp. (2024)This video demonstrates the purification of bacteriophages from bacterial cell lysates using sequential centrifugation, membrane filtration, chloroform extraction, centrifugal filtration, and buffer exchange to obtain a purified phage preparation.
03:36
Preparation of Bacteriophage Lysate for Generalized Transduction
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2026
Source: Saragliadis, A., et al. Producing Gene Deletions in Escherichia coli by P1 Transduction with Excisable Antibiotic Resistance Cassettes. J. Vis. Exp.(2018)This video demonstrates preparation of a bacteriophage lysate containing transducing particles. A donor strain is infected, plaques form, and the soft agar overlay is processed with chloroform to yield a clarified lysate for downstream analysis.
06:25
Electrochemiluminescence Assay for Quantification of Target Protein Levels in Brain Lysate
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2025
In this video, we demonstrate the electrochemiluminescence immunoassay for the quantitation of target protein levels in different samples. This assay is based on the luminescence produced in the electrochemical reaction. The intensity of light emitted is proportional to the quantity of the target protein in the sample.
09:49
Isolation and Purification of Kinesin from Drosophila Embryos
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Cited by 5 •
2012
This is a protocol to isolate active full length Kinesin from Drosophila embryos for single-molecule biophysical studies. We show how to collect embryos, make the embryo lysate, and then polymerize microtubules (MTs). Kinesin is purified by immobilizing it on the MTs, spinning down the Kinesin-MT complexes, and then releasing the kinesin from the MTs via ATP addition.
FAQs
Embryonic stage and preparation conditions are major sources of variation. As development proceeds, the relative composition of proteins, signaling molecules, metabolites, lipids, and nucleic acids can change, while tissue disruption and handling influence what is released. Experiments therefore need stage and preparation information to interpret molecular profiles or cell responses.
Its value comes from preserving a biologically complex mixture rather than isolating only one molecular class. Soluble proteins, signaling molecules, metabolites, lipids, and nucleic acids can collectively reflect the molecular environment of developing tissue. Exposing cultured cells to this mixture can help investigators examine changes in signaling, proliferation, and differentiation.
A lysate provides a broader molecular snapshot because several classes of cellular contents are examined together. This complexity can capture interactions among developmental signals and other molecular constituents that may be missed when analysis focuses on one component. At the same time, interpreting an observed effect requires attention to the mixture's embryonic stage and preparation history.
Preparation conditions influence which cellular contents become available in the final material and may affect its molecular composition. Without this context, differences between samples could be attributed incorrectly to developmental stage or biological activity. Recording preparation details strengthens comparisons of molecular profiles and of responses observed after applying lysate to cultured cells.
A basic application is to expose cultured cells to the prepared material and then examine effects on signaling, proliferation, or differentiation. The cellular response can be compared across lysates from different embryonic stages or preparation conditions. This approach connects the molecular environment of developing tissue with measurable behavior in a cell culture system.
Researchers can use it to characterize changing molecular environments during embryonic development, investigate cell-cell communication, and assess how complex embryonic contents influence cultured cells. Because the material may affect proliferation and differentiation, it also provides a way to explore developmental regulation and potential regenerative applications without reducing the system to a single molecular signal.