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Related Concept Videos

Proteomics01:33

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...

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Related Experiment Video

Updated: Jun 26, 2026

Mapping Mammalian 3D Genome Interactions with Micro-C-XL
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Array MAPPIT: high-throughput interactome analysis in mammalian cells.

Sam Lievens1, Nele Vanderroost, José Van der Heyden

  • 1Department of Medical Protein Research, VIB, A. Baertsoenkaai 3, 9000 Ghent, Belgium.

Journal of Proteome Research
|January 23, 2009
PubMed
Summary
This summary is machine-generated.

Researchers developed an efficient MAPPIT assay for high-throughput screening of mammalian protein-protein interactions. This mammalian two-hybrid method identifies novel interaction partners for proteins like SKP1 and Elongin C.

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Last Updated: Jun 26, 2026

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Area of Science:

  • Molecular Biology
  • Cellular Biology
  • Biochemistry

Background:

  • Protein-protein interactions are fundamental to cellular processes.
  • Mapping these interactions is crucial for understanding cellular function.
  • Existing methods have limitations in high-throughput analysis.

Purpose of the Study:

  • To introduce an efficient MAPPIT (mammalian protein-protein interaction trap) assay for high-throughput screening.
  • To complement existing MAPPIT cDNA library screening.
  • To identify novel protein interaction partners in mammalian systems.

Main Methods:

  • Development and validation of an array-based MAPPIT assay.
  • Utilizing a mammalian two-hybrid system for in vivo interaction analysis.
  • Screening for interaction partners of SKP1 and Elongin C.

Main Results:

  • Successful implementation of a high-throughput MAPPIT array assay.
  • Identification of known and novel interaction partners for SKP1 and Elongin C.
  • Demonstration of the assay's efficiency and utility.

Conclusions:

  • The array-based MAPPIT assay significantly enhances the MAPPIT toolbox.
  • This technology facilitates high-throughput screening for protein interactors.
  • It provides a valuable tool for discovering novel protein-protein interactions in mammalian cells.