Endogenous Protein
Endogenous Protein - Related Videos
05:35
Immunofluorescence Analysis of Endogenous and Exogenous Centromere-kinetochore Proteins
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Cited by 4 •
2016
Here we report protocols to detect endogenous and exogenous centromere-kinetochore proteins in human cells and quantify these protein levels at centromeres-kinetochores by indirect immunofluorescent staining through the use of fixation (paraformaldehyde, acetone, or methanol fixation).
13:46
Immunoprecipitation-Based Techniques: Purification of Endogenous Proteins Using Agarose Beads
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2023
Source: Susannah C. Shissler1, Tonya J. Webb1 1 Department of Microbiology and Immunology, University of Maryland, Baltimore, MD 21201 Immunoprecipitation (IP, also known as a 'pull-down' assay) is a widely used technique that has applications in a variety of fields. First conceived in 1984, it was refined in 1988 (1, 2). The fundamental goal of IP is purification and isolation of a specific protein using an antibody against that protein. The word "immuno" refers to the use of an antibody while...
09:09
Removal and Replacement of Endogenous Ligands from Lipid-Bound Proteins and Allergens
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Cited by 9 •
2021
This protocol describes the removal of endogenous lipids from allergens, and their replacement with user-specified ligands through reverse-phase HPLC coupled with thermal annealing. 31P-NMR and circular dichroism allow for the rapid confirmation of ligand removal/loading, and the recovery of native allergen structure.
09:17
Co-immunoprecipitation Assay Using Endogenous Nuclear Proteins from Cells Cultured Under Hypoxic Conditions
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Cited by 2 •
2018
Here we describe a co-immunoprecipitation protocol to study protein-protein interactions between endogenous nuclear proteins under hypoxic conditions. This method is suitable for demonstration of the interactions between transcription factors and transcriptional co-regulators at hypoxia.
01:27
Endogenous Growth Theory
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2025
Economic growth has always intrigued leaders and economists. Older economic theories often saw technology as something that just appeared from outside the economy, without explanation. Endogenous Growth Theory changed that view. It says that growth comes from within, through people’s ideas, skills, and innovation. When individuals and businesses invest in education, research, and new technologies, they actively create the conditions for long-term economic growth.Rethinking Growth: From Capital...
FAQs
Gene expression links DNA activity to protein production through two main stages: transcription creates messenger RNA, and ribosomes translate that message into protein. Regulation at this pathway influences how much protein the native system produces. Examining the resulting abundance can therefore connect protein levels with cellular physiology, signaling, metabolism, or disease-related changes.
Newly translated proteins may require folding, chemical modification, or delivery to a particular cellular location before they fully reflect their biological role. These processes help determine how the protein functions within its native system. Studying them alongside protein abundance provides a more informative view than measuring production alone, especially when localization or activity changes during disease-related processes.
An endogenous protein is examined within the system that naturally produces and regulates it, whereas a recombinant or experimentally introduced version comes from an external source. The native protein therefore provides context about normal cellular production, targeting, interactions, and regulation. Comparing both forms can reveal which observations reflect natural biology and which result from introduction or altered expression.
These measurements describe different aspects of the same biological system. Abundance indicates how much protein is present, localization shows where it operates within the cell, and interaction analysis addresses which other cellular components are associated with it. Together, they can clarify signaling pathways, metabolic processes, normal physiology, and changes linked to disease.
A study can begin by examining the relevant biological system and then evaluating the protein's abundance, cellular localization, or interactions. Researchers can relate those observations to physiology, signaling, metabolism, or disease-associated changes. Including comparisons with recombinant or experimentally introduced versions helps determine whether observed behavior represents native regulation or an externally altered condition.
Native protein measurements can show how a biological system changes under disease-related conditions while preserving the context of natural production and cellular activity. Researchers may use differences in abundance, localization, or interactions to investigate those changes and support biomarker research. The same information also provides a baseline for comparing altered systems with normal physiology.